In December 2021, a team of paleontologists published data suggesting that the asteroid impact that ended the reign of dinosaurs could be pinned down to a season springtime, 66 million years agothanks to an analysis of fossilized fish remains at a famous site in North . All of these factors seemed strange and confused the paleontologists. If they can provide the raw data, its just a sloppy paper. A Triceratops or other ceratopsian ilium (hip bone) was found at the high water mark, in circumstances hinting that the dinosaur might speculatively have been a floating carcass and possibly alive at or just before impact,[5] but the paper describing such remains was still in progress as of 2019[6] the initial papers only include a photograph and its location within Tanis. (DePalma and colleagues published a paper in the Proceedings of the National Academy of Sciences in 2019 that described finding these spherules in different samples analyzed at another facility.). "Robert has been meticulous, borderline archaeological in his excavation approach," says Manning, who has been working at Tanis from the beginning. Gizmodo covered the research at the time. Based on the . But a former colleague, Melanie During at Uppsala University, asserts that DePalma created data to support the conclusion. Bde hans far och hans farfars bror var kirurger i Florida. According to Science, DePalma was incorrect in 2015 when he believed he discovered a bone from a new type of dinosaur. [5] The original discoverers of the site (Rob Sula and Steve Nicklas), who worked the site for several years, recognized its scientific importance and offered it to DePalma as he had some previous experience with working on fish sites. Searching in the hills of North Dakota, palaeontologist Robert DePalma makes an incredible . How to Know If the Heat Is Making You Sick. FAU's Robert DePalma, senior author and an adjunct professor in the Department of Geosciences, Charles E. Schmidt College of Science, and a doctoral student at the . Robert DePalma r son till tandkirurgen Robert De Plama Sr i Delray Beach. Some scientists question Robert DePalma's methods. Now, a different group of researchers is accusing the former group of faking their data; the journal that published the research has added an editors note to the paper saying the data is under review. No part of Durings paper had any bearing on the content of our study, DePalma says. He did so, and later also sent a partial paddlefish fossil he had excavated himself. Of his discovery, DePalma said, "It's like finding the Holy Grail clutched in the . According to the Science article, During suspects that DePalma, eager to claim credit for the finding, wanted to scoop herand made up the data to stake his claim.. We absolutely would not, and have not ever, fabricated data and/or samples to fit this or another teams results, he wrote in an email to Science. DePalma did not respond to an email request for an interview. [15][1]:p.8. [1] Simultaneous media disclosure had been intended via the New Yorker, but the magazine learned that a rival newspaper had heard about the story, and asked permission to publish early to avoid being scooped by waiting until the paper was published. These dimensions are in the upper size range for point bars in the Hell Creek Formation and compare favorably with modern rivers with large channels that are tens to hundreds of meters wide", "[The Event flood deposits are] indicative of a westward or inland flow direction that is opposite of the natural (ancient) current of the Tanis River", "[The] Event Deposit is restricted to (an ancient) river valley and is conspicuously absent from the adjacent floodplains. Manning points out that all fossils described in the PNAS paper have been deposited in recognized collections and are available for other researchers to study. Bottom left, micro-CT image showing cutaway of clay-altered ejecta spherule with internal core of unaltered impact glass. But McKinneys former department chair, Pablo Sacasa, says he is not aware of McKinney ever collaborating with laboratories at other institutions. When I saw [microtektites in their own impact craters], I knew this wasnt just any flood deposit. Dont yet have access? Others defend DePalma, like his co-author, Mark Richards, a geophysicist at the University of California, Berkeley. This explanation was proposed long before DePalma's discovery. If we've learned anything from the COVID-19 pandemic, it's that we cannot wait for a crisis to respond. After his excavations at the Tanis site in North Dakota unearthed a huge trove of fish fossils that were likely blasted by the asteroid impact . DePalma purported that these animals died during the asteroid's impact since the glass's chemical makeup indicates an extraordinary explosion something similar to the detonation of 10 billion bombs. It is truly a magnificent site surely one of the best sites ever found for telling just what happened on the day of the impact. Victoria Wicks: DePalma's name is listed first on the research article published in April last year, and he has been the primary spokesman on the story . As detailed by Science, the isotopic data in DePalmas paper was collected by archaeologist Curtis McKinney, who died in 2017. Robert DePalma made headlines again in 2021 with the discovery of a leg from a Thescelosaurus dinosaur at Tanis, reported The Washington Post. He is survived by his loving wife,. DePalma's team says the killing is captured in forensic detail in the 1.3-meter-thick Tanis deposit, which it says formed in just a few hours, beginning perhaps 13 minutes after impact. From the size of the deposits beneath the flood debris, the Tanis River was a "deep and large" river with a point bar that was towards the larger size found in Hell's Creek, suggesting a river tens or hundreds of meters wide. This is not a case of he said, she said. This is also not a case of stealing someones ideas. DePalma and his colleagues have been working at Tanis since 2012. Artist's rendering of a large asteroid hitting Earth. The events at Tanis occurred far too soon after impact to be caused by the megatsunamis expected from any large impact near large bodies of water. DePalma, now a Ph.D. student at the University of Manchester, vehemently denies any wrongdoing. The Hell Creek Formation was at this time very low-lying or partly submerged land at the northern end of the seaway, and the Chicxulub impact occurred in the shallow seas at the southern end, approximately 3,050km (1,900mi) from the site. He says the study published in Scientific Reports began long before During became interested in the topic and was published after extended discussions over publishing a joint paper went nowhere. In December 2021, DePalma and his colleagues published an important paper . During, whose paper was accepted by Nature shortly afterward and published in February, suspects that DePalma, eager to claim credit for the finding, wanted to scoop herand made up the data to stake his claim. The claim is the Tanis creatures were killed and entombed on the actual day a giant asteroid struck Earth. At his suggestion, she wrote a formal letter to Scientific Reports. Robert DePalma. Images: Top right, Robert DePalma and Peter Larson conduct field research in Tanis. (Formula and details)The 2011 Thoku earthquake and tsunami was estimated at magnitude 9.1, so the energy released by the Chicxulub earthquakes, estimated at up to magnitude 11.5, may have been up to 101.5 x (11.59.1) = 3981 times larger. Melanie During suspects Robert DePalma wanted to claim credit for identifying the dinosaur-killing asteroids season of impact and fabricated data in order to be able to publish a paper before she did. "It saddens me that folks are so quick to knock a study," he says. But just one dinosaur bone is discussed in the PNAS studyand it is mentioned in a supplement document rather than in the paper itself. Its not clear where McKinney conducted these analyses, and raw data was not included in the published paper. [21], The site was originally a point bar - a gently sloped crescent-shaped area of deposit that accumulates on the inside bend of streams and rivers below the slip-off slope. DePalma's dinosaur study, published in Scientific Reports in December 2021, . "Capturing the event in that much detail is pretty remarkable," concedes Blair Schoene, a geologist at Princeton University, but he says the site does not definitively prove that the impact event was the exclusive trigger of the mass extinction. "He could have stumbled on something amazing, but he has a reputation for making a lot out of a little.". A version of this story appeared in Science, Vol 378, Issue 6625. In a recent article in The New Yorker, author Douglas Preston recounts his experience with paleontologist Robert DePalma, who uncovered some of the first evidence to settle these debates. When DePalmas paper was published just over 3 months later, During says she soon noticed irregularities in the figures, and she was concerned the authors had not published their raw data. We may earn a commission from links on this page. 2 / 4: Robert A. DePalma, a paleontologist at the Palm Beach Museum of Natural History and a graduate student at the University of Kansas. Nicklas also indicates that "in 2012 we decided to try to find an academic paleontologist who had the necessary interest, time, and the ability to excavate the site A good friend of ours, Ronnie Frithiof, recommended Robert DePalma. Plus, tektites, pieces of natural glass formed by a meteor's impact, were scattered amid the soil. The bottom line is that this case will just involve bluster and smoke-blowing until the authors produce a primary record of their lab work, adds John Eiler, a geochemist and isotope analysis expert at the California Institute of Technology. Additional fossils, including this beautifully preserved fish tail, have been found at the Tanis site in North Dakota. DePalma has not made public the raw, machine-produced data underlying his analyses. Tanis at the time was located on a river that may have drained into the shallow sea covering much of what is now the eastern and southern United States. Underneath a freshwater paddlefish skeleton, a mosasaur tooth appeared. Both papers studied 66-million-year-old paddlefish jawbones and sturgeon fin spines from Tanis. An aspiring novelist, he attended The Ohio State University studying English and Episode . Science journalism's obligation to truth. Ultimately, both studies, which appeared in print within weeks of each other, were complementary and mutually reinforcing, he says. Disbelievers of this supposition, though, point to the lack of fossils in the KT layer as proof that this thesis is false more fossils are discovered some 10 feet underneath the layer. "That's the first ever evidence of the interaction between life on the last day of the Cretaceous and the impact event," team member Phillip Manning, a paleontologist at the University of Manchester in the United Kingdom, told the publication. He did send Science a document containing what he says are McKinneys data. The 1960 Valdivia Chile earthquake was the most powerful ever recorded, estimated at magnitude 9.4 to 9.6. . The Tanis site was first identified in 2008 and has been the focus of fieldwork by paleontologist Robert DePalma since . Paleontologist accused of faking data in dino-killing asteroid paper. The site lacked the fine sediment layers he was initially looking for. A A. Paleontologist Robert DePalma has done it again. DePalma characterizes their interactions differently. Some of the gripes occurred because DePalma first shared his story with a mainstream publication, The New Yorker, instead of a more academic-based journal, said Bored Therapy. Could it be a comet, asteroid, or meteor that crashed into the planet, and the reverberations ended the reign of the dinosaurs? Robert Depalma, paleontologist, describes the meteor impact 66 million years ago that generated a tsunami-like wave in an inland sea that killed and buried f. Some recent examples include the 1964 Alaskan earthquake (seiches in Puerto Rico),[14] the 1950 Assam-Tibet earthquake (India/China) (seiches in England and Norway), the 2010 Chile earthquake (seiches in Louisiana). DePalma says his team also invited Durings team to join DePalmas ongoing study. Now, Robert DePalma, a paleontologist at the Palm Beach Museum of Natural History and a graduate student at the University of Kansas, claims to have unveiled an unprecedented time capsule of this . These include many rare and unique finds, which allow unprecedented examination of the direct effects of the impact on plants and animals alive at the time of the large impact some 3,000km (1,900mi) distant. After his team learned about Durings plan to submit a paper, DePalma says, one of his colleagues strongly advised During that the paper must at minimum acknowledge the teams earlier work and include DePalmas name as a co-author. Her former collaborator Robert DePalma, whom she had listed as second author on the study, published a paper of his own in Scientific Reports reaching essentially the same conclusion, based on an entirely separate data set. I dont believe that Curtis himself went to another lab, he was ill for many years, Sacasa says. Others later pointed out that the reconstructed skeleton includes a bone that really belonged to a turtle; DePalma and his colleagues issued a correction. [1]:p.8192 The river flowed Eastward (other than impact driven waves),[1]:p.8192 with inland being to the West; Tanis itself was therefore in an ancient river valley close to the Westward shore of the Interior Seaway. ", A North Dakota Excavation Had One Paleontologist Rethinking The Dinosaurs' Extinction, Proceedings of the National Academy of Sciences. A researcher claims that Robert DePalma published a faulty study in order to get ahead of her own work on the Tanis fossil site. But During, a Ph.D. candidate at Uppsala University (UU), received a shock of her own in December 2021, while her paper was still under review. A bad day for dinosaurs was the subject of an engaging hour-and-a-half for both paleontologists and NASA researchers. View Obituary & Service Information [31][18], A BBC documentary on Tanis, titled Dinosaurs: The Final Day, with Sir David Attenborough, was broadcast on 15 April 2022. Even as a child, DePalma wondered what the Cretaceous was like. After The New Yorker published "The Day the Dinosaurs Died," which details the discovery of a fossil site in Hell's Creek, North Dakota, by Robert DePalma a Kansas State PhD student and paleontologist, debates and discussions across the country arose over the article. DePalma's team argues that as seismic waves from the distant impact reached Tanis minutes later, the shaking generated 10-meter waves that surged from the sea up the river valley, dumping sediment and both marine and freshwater organisms there. Such a conclusion might provide the best evidence yet that at least some dinosaurs were alive to witness the asteroid impact. DePalma gave the name Tanis to both the site and the river. In the early 1980s, the discovery of a clay layer rich in iridium, an element found in meteorites, at the very end of the rock record of the Cretaceous at sites around the world led researchers to link an asteroid to the End Cretaceous mass extinction. Still, people's ardor for this group of reptiles is so passionate that 12% of Americans surveyed in an Ipsos poll would resurrect T. rexes and the rest of these mysterious creatures if it were possible. In December 2021, a team of paleontologists published data . Recognizing the unique nature of the site, Nicklas and Sula brought in Robert DePalma, a University of Kansas graduate student, to perform additional excavations. Could this provide evidence to the theory that an asteroid did indeed cause the mass extinction of the dinosaurs? She and her supervisor, UU paleontologist Per Ahlberg, have shared their concerns with Science, and on 3 December, During posted a statement on the journal feedback website PubPeer claiming, we are compelled to ask whether the data [in the DePalma et al. Other papers describing the site and its fossils are in progress. Robert DePalma Frederich Cichocki Manuel Dierick Robert Feeney: JPS.C.10.0001: Volume 1, 2007 "How to Make a Fossil: Part 2 - Dinosaur Mummies and Other Soft Tissue" . Episode #52: Your Mother Was a Vetulicolian and Your Father Smelt of Elderberries with Henry Gee . Robert DEPALMA, Postgraduate Researcher | Cited by 253 | of The University of Manchester, Manchester | Read 18 publications | Contact Robert DEPALMA Raising the Bar: Chocolate's History, Art, and Taste With Sophia Contreras Rea But two months before Durings paper would be published, a paper came out in Scientific Reports reaching essentially the same conclusion, based on an entirely separate data set, Science reported. The paper, in the Proceedings of the National Academy of Sciences (PNAS), does not include all the scientific claims mentioned in The New Yorker story, including that numerous dinosaurs as well as fish were buried at the site. "His line between commercial and academic work is not as clean as it is for other people," says one geologist who asked not to be named. In fact, there are probably dinosaur types that still remain unidentified, reported Smithsonian Magazine. Comes with twelve different courses comprised of a huge number of lessons, and each one will help you learn more about Python itself, and can be accessed when you want and as often as you want forever, making it ideal for learning a new skill. Robert DePalma, a curator at the Palm Beach Museum of Natural History, found some rare fossils close to Bowman, North Dakota, in 2013 that led to a hypothesis of his own. We're seeing mass die-offs of animals and biomes that are being put through very stressful situations worldwide. Eiler agrees. The formation is named for early studies at Hell Creek, located near Jordan, Montana, and it was designated as a National Natural Landmark in 1966. This dinosaur, a giant reptilian, lived during the Early Cretaceous period in oceans. After trying to discuss the matter with editors at Scientific Reports for nearly a year, During recently decided to make her suspicions public. ^Note 2 If two earthquakes have moment magnitudes M1 and M2, then the energy released by the second earthquake is about 101.5 x (M2 M1) times as much at the first. The plotted line graphs and figures in DePalmas paper contain numerous irregularities, During and Ahlberg claimincluding missing and duplicated data points and nonsensical error barssuggesting they were manually constructed, rather than produced by data analysis software. Schoene and some others believe environmental turmoil caused by large-scale volcanic activity in what is now central India may have taken a toll even before the impact. In June 2021, paleontologist Melanie During submitted a . Until a few years ago, some researchers had suspected the last dinosaurs vanished thousands of years before the catastrophe. Fossils from dinosaurs and other animals from thousands of years before the asteroid impact are very hard to come by, leading some to believe . The findings are the work of paleontologist Robert DePalma, who has previously attracted controversy. Kansas University, via Agence France-Presse Getty Images The same day, Ahlberg tweeted that he and During submitted a complaint of potential research misconduct against DePalma and Phillip Manning, one of the papers co-authors, to the University of Manchester. There was no advanced decay. Other geologists say they can't shake a sense of suspicion about DePalma himself, who, along with his Ph.D. work, is also a curator at the Palm Beach Museum of Natural History in Wellington, Florida. It can be divided into two layers, a bottom layer about 0.5m thick ("unit 1"), and a top layer about 0.8m thick (unit 2), capped by a 1 2cm layer of impactite tonstein that is indistinguishable from other dual layered KPg impact ejection materials found in Hells Creek, and finally a layer around 6cm thick of plant remains. DePalma made major headlines in March 2019, when a splashy New Yorker story revealed the Tanis site to the world. But not everyone has fully embraced the find, perhaps in part because it was first announced to the world last week in an article in The New Yorker. Bob was born in Newark, NJ on December 26, 1948 to the late James and Rose DePalma. . DePalma did not respond to a Gizmodo request for comment, but he told Science, We absolutely would not, and have not ever, fabricated data and/or samples to fit this or another teams results., On December 9, a note was added to DePalmas paper on the Scientific Reports website. Credit. Based on the chemical isotope signatures and bone growth patterns found in fossilized fish collected at Tanis, a renowned fossil site in North Dakota, During had concluded the asteroid that ended the dinosaur era 65 million years ago struck Earth when it was spring in the Northern Hemisphere. Several independent scientists consulted about the case by Science agreed the Scientific Reports paper contains suspicious irregularities, and most were surprised that the paperwhich they note contains typos, unresolved proofreaders notes, and several basic notation errorswas published in the first place. Help News from Science publish trustworthy, high-impact stories about research and the people who shape it. 2021 (106) December (5) November (8) October (8 . All rights reserved. Point bars are common in mature or meandering streams. Another question about dinosaurs is what caused their extinction and there are many theories about that, too. Such waves are called seiches: The 2011 Tohoku earthquake near Japan triggered 1.5-meter-tall seiches in Norwegian fjords 8000 kilometers away. The skull of the scarred Edmontosaurus also showed signs of trauma, and from the size and shape of the marks on the bone, Rothschild and fellow co-author Robert DePalma, a paleontologist at the . In December 2021, a team of paleontologists published data . Traduzioni in contesto per "i paleontologi che" in italiano-inglese da Reverso Context: Ma i paleontologi che studiano dettagliatamente i denti fossilizzati di questi animali hanno sospettato che non erano quello semplice. The mud and sand are dotted with glassy spherulesmany caught in the gills of the fishisotopically dated to 65.8 million years ago. During and DePalma spent 10 days in the field together, unearthing fossils of several paddlefish and species closely related to modern sturgeon called acipenseriformes. Robert DePalma is a vertebrate paleontologist, based out of Florida Atlantic University (FAU), whose focus on terrestrial life of the late Cretaceous, the Chicxulub asteroid impact, and the evolution of theropod dinosaurs, was sparked by a passionate fascination with the past. UW News staff. Please make a tax-deductible gift today. Those files were almost certainly backed up, and the lab must have some kind of record keeping process that says what was done when and by whom., Barbi is similarly unimpressed. Her mentor there, paleontologist Jan Smit, introduced her to DePalma, at the time a graduate student at the University of Kansas, Lawrence. When asked for more information on the situation on January 3, a spokesperson for Scientific Reports said there were no updates. [5] Co-author Professor Phillip Manning, a specialist in fossil soft tissues,[19] described DePalma's working techniques at Tanis as "meticulous" and "borderline archaeological in his excavation approach". All rights reserved. Robert DePalma made headlines again in 2021 with the discovery of a leg from a Thescelosaurus dinosaur at Tanis, reported The Washington Post. A meteor impact 66 million years ago generated a tsunami-like wave in an inland sea that killed and buried fish, mammals, insects and a dinosaur, the first victims of Earth's most recent mass extinction event. If I were the editor, I would retract the paper unless [the raw data] were produced posthaste, he says. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER. Tanis is a site of paleontological interest in southwestern North Dakota, United States. Boca paleontologist Robert de Palma uncovers evidence of the day the dinosaurs diedand how it connects to homo sapiens. In the BBC documentary, Robert DePalma, a relative of film director Brian De Palma, can be seen sporting an Indiana Jones-style fedora and tan shirt. Robert DePalma. Bottom right, a small fragment of a marine annemite shell found in the freshwater Tanis deposit. Any water-borne waves would have arrived between 18 and 26 hours later,[1]:p.24 long after the microtektites had already fallen back to earth, and far too late to leave the geological record found at the site. The chief editor of Scientific Reports, Rafal Marszalek, says the journal is aware of concerns with the paper and is looking into them. [1]:figure S29 pg.53 In 2022, a partial mummified Thescelosaurus was unearthed here with its skin still intact.[7]. In the caravan are microscopes . While some lived near a river, lake, lagoon, or another place where sediment was found, many thrived in other habitats. The latter paper was published by a team led by Robert DePalma, Durings former collaborator and a paleontologist now at the University of Manchester. The 2023 Complete Python Certification Bootcamp Bundle, What Is Carbon Capture? By Nicole Karlis Senior Writer. They did a few years of digging, uncovering beautiful, fragile sh . Robert DePalma reveals the Tanis site discoveries he couldn't talk about in Part One. But others question DePalma's interpretations. 2023 American Association for the Advancement of Science. Robert A. DePalma1,2, David A. Burnham2,*, Larry D. Martin2,, Peter L. Larson 3 and Robert T. Bakker 4 1 Department of Vertebrate Paleontology, The Palm Beach Museum of Natural History, Fort Lauderdale, Florida; 2 University of Kansas Bio- They had breathed in early debris that fell into water, in the seconds or minutes before death. At the site, called Tanis, the researchers say they have discovered the chaotic debris left when tsunamilike waves surged up a river valley. Jan Smit first presented a paper describing the Tanis site, its association with the K-Pg boundary event and associated fossil discoveries, including the presence of glass spherules from the Chicxulub impact clustered in the gill rakers of acipenciform fishes and also found in amber. . [18], DePalma began excavating systematically in 2012[1]:11 and quickly found the site to contain very unusual and promising features. A thin layer of bone cells on sturgeons fins thickens each spring and thins in the fall, providing a kind of seasonal metronome; the x-rays revealed these layers were just beginning to thicken when the animals met their end, pointing to a springtime impact. To verify the study's claims, paleontologists say that DePalma must broaden access to the site and its material. The Byte reports that the amber was found 2,000 miles away from the asteroid crater off the coast of Mexico believed to be . According to The New Yorker, DePalma also sports some off-putting paleontology practices, like keeping his discovery secret for so long and limiting other scientists' access to the site. By 2013, he was still studying the site, which he named "Tanis" after the ancient Egyptian city of the same name,[5] and had told only three close colleagues about it. The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, gender identity, gender expression, and genetic information in the university's programs and activities. Both papers made their conclusions based on analysis of fish remains at the Tanis fossil site in North Dakota. [5] Secrecy about Tanis was maintained until disclosed by DePalma and co-author Jan Smit in two short summary papers presented in October 2017,[2][3] which remained the only public information before widespread media coverage of the full prepublication paper on 29 March 2019. (Courtesy of Robert DePalma) You and your team have made some extraordinary finds, including an exquisitely preserved leg of a dinosaur that you believed died on the very day of the asteroid impact.
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