Robert DePalma (kottke.org) It feels like a case of the dog ate my homework, and I dont think the relatives of Curtis McKinney deserve this, During told Gizmodo. Episode #52: Your Mother Was a Vetulicolian and Your Father Smelt of Elderberries with Henry Gee .
Paleontologist Accused of Making Up Data on Dinosaur-Killing Asteroid [1]:pg.11 Key findings were presented in two conference papers in October 2017. DePalma may also flout some norms of paleontology, according to The New Yorker, by retaining rights to control his specimens even after they have been incorporated into university and museum collections. Although they stopped short of saying the irregularities clearly point to fraud, mostbut not allsaid they are so concerning that DePalmas team must come up with the raw data behind its analyses if team members want to clear themselves. 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. His advisor suggested seeking a similar site, closer to the K-Pg boundary layer. Tanis is part of the heavily studied Hell Creek Formation, a group of rocks spanning four states in North America renowned for many significant fossil discoveries from the Upper Cretaceous and lower Paleocene. The site was systematically excavated by Robert DePalma over several years beginning in 2012, working in near total secrecy.
Abstract - Nasa In 2004, DePalma was studying a small site in the well-known Hell Creek Formation, containing numerous layers of thin sediment, creating a geological record of great detail.His advisor suggested seeking a similar site, closer to the K-Pg boundary layer. [1]:p.8 Seiche waves often occur shortly after significant earthquakes, even thousands of miles away, and can be sudden and violent.
New Winged Dinosaur May Have Used Its Feathers to Pin Down Prey But others question DePalma's interpretations. 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. But a former colleague, Melanie During at Uppsala University, asserts that DePalma created data to support the conclusion. 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.
Paleontologist Robert DePalma Presents in NASA Goddard Colloquium on "That some competitors have cast Robert in a negative light is unfortunate and unfair," says another co-author, Mark Richards, a geophysicist at the University of California, Berkeley. 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. It is not even clear whether the massive waves were able to traverse the entire Interior Seaway. This is misconduct, During wrote in an email to Gizmodo. Also, there is little evidence on the detailed effects of the event on Earth and its biosphere. "I just hope this hasn't been oversensationalized.". During and DePalma spent 10 days in the field together, unearthing fossils of several paddlefish and species closely related to modern sturgeon called acipenseriformes. 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. Kansas University, via Agence France-Presse Getty Images 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. Robert DEPALMA, Postgraduate Researcher | Cited by 253 | of The University of Manchester, Manchester | Read 18 publications | Contact Robert DEPALMA 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. 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. In turn, the fish remains revealed the season their lives endedergo, the precise timing of the devastating asteroid strike to the Yucatn Peninsula. . 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. [18], DePalma began excavating systematically in 2012[1]:11 and quickly found the site to contain very unusual and promising features. A version of this story appeared in Science, Vol 378, Issue 6625. DePalma characterizes their interactions differently. 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. In June 2021, paleontologist Melanie During submitted a manuscript to Nature that she suspected might create a minor scientific sensation. "No one is an expert on all of those subjects," he says, so it's going to take a few months for the research community to digest the findings and evaluate whether they support such extraordinary conclusions. Everything he found had been covered so quickly that details were exceptionally well preserved, and the fossils as a whole formed a very unusual collection fish fins and complete fish, tree trunks with amber, fossils in upright rather than squashed flat positions, hundreds or thousands of cartilaginous fully articulated freshwater paddlefish, sturgeon and even saltwater mosasaurs which had ended up on the same mudbank miles inland (only about four fossilized fish were previously known from the entire Hell Creek formation), fragile body parts such as complete and intact tails, ripped from the seafish's bodies and preserved inland in a manner that suggested they were covered almost immediately after death, and everywhere millions of tiny spheres of glassy material known as microtektites, the result of tiny splatters of molten material reaching the ground. 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. No fossil beds were yet known that could clearly show the details that might resolve these questions. The event included waves with at least 10 meters run-up height (the vertical distance a wave travels after it reaches land). Melanie During suspects Robert DePalma wanted to claim credit for identifying the dinosaur-killing asteroid's season of impact and fabricated data in order to be able to publish a paper . Top left, a shocked mineral from Tanis. 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. Every summer, for the past eight years, paleontologist Robert de Palma and a caravan of colleagues drive 2,257 miles from Boca Raton to the sleepy North Dakota town of Bowman. 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 .
Did the Dinosaurs Die on a Pleasant North Dakota Spring Day? Tanis (fossil site) . "We're never going to say with 100 percent certainty that this leg came from an animal that died on that day," the scientist said to the publication. The Chicxulub impact is believed to have triggered earthquakes estimated at magnitude 10 11.5,[1]:p.8 releasing up to 4000 times the energy of the Tohoku quake.Note 1 Co-author Mark Richards, a professor of earth sciences focusing on dynamic earth crust processes[16] suggests that the resulting seiche waves would have been approximately 10100m (33328ft) high in the Western Interior Seaway near Tanis[1]:p.8 and credibly, could have created the 10 11 m (33 36 feet) high water movements evidenced inland at the site; the time taken by the seismic waves to reach the region and cause earthquakes almost exactly matched the flight time of the microtektites found at the site. [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. Robert DePalma: We know there would have been a tremendous air blast from the impact and probably a loud roaring noise accompanied with that similar to standing next to a 747 jet on the runway. In the caravan are microscopes . Dinosaurs - The Final Day with David Attenborough: Directed by Matthew Thompson.
Robert DePalma - Wikipedia Based on the . Robert DePalma, fdd 12 oktober 1981, r en amerikansk paleontolog och kurator .
Robert DePalma Obituary (2010) - Columbus, OH - The Columbus Dispatch 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. Han vxte upp i Boca Raton i Florida. DePalma took over excavation rights on it several years ago from commercial fossil prospectors who discovered the site in 2008. The Byte reports that the amber was found 2,000 miles away from the asteroid crater off the coast of Mexico believed to be .
Stunning discovery offers glimpse of minutes following 'dinosaur-killer When we look at the preservation of the leg and the skin around the articulated bones, we're talking on the day of impact or right before. With David Attenborough, Robert DePalma, Phillip Manning. Robert DePalma (right) and Walter Alvarez (left) at the Tanis site in North Dakota. ", Since Tanis became an excavation site, several other fossils were found, including a pterosaur embryo. A researcher claims that Robert DePalma published a faulty study in order to get ahead of her own work on the Tanis fossil site. 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. Tobin says the PNAS paper is densely packed with detail from paleontology, sedimentology, geochemistry, and more. Some scientists question Robert DePalma's methods. . Despite more than 200 years of study, paleontologists have named only several hundred species. DEPALMA Robert Michael DePalma Jr. of Columbus, Ohio passed away unexpectedly February 15, 2010 at the age of 26 years. 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. However, two independent scientists who reviewed the data behind the paper shortly after its publication say they were satisfied with its authenticity and have no reason to distrust it. 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. 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. [8] The site continues to be explored. 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.
Paleontologist Accused of Making Up Data on Dinosaur-Killing Asteroid "I hope this is all legitI'm just not 100% convinced yet," says Thomas Tobin, a geologist at the University of Alabama in Tuscaloosa. December 10, 2021 Source: .
Robert DePalma published a study in December 2021 that said the dinosaurs went extinct in the springtime - but a former colleague has alleged that it's based on fake data. [17] This would resolve conflicting evidence that huge water movements had occurred in the Hell Creek region near Tanis much less than an hour after impact, although the first megatsunamis from the impact zone could not have arrived at the site for almost a full day. 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. Tanis is a significant site because it appears to record the events from the first minutes until a few hours after the impact of the giant Chicxulub asteroid in extreme detail. A study published by paleontologist Robert DePalma in December last year concluded that dinosaurs went extinct during the springtime. Tanis is a site of paleontological interest in southwestern North Dakota, United States. Last month, During published a comment on PubPeer alleging that the data in DePalmas paper may be fabricated. Impact Theory of Mass Extinctions and the Invertebrate Fossil Record, The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary. 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. Numerous famous fossils of plants and animals, including many types of dinosaur fossils, have been discovered there. The end-Cretaceous Chicxulub impact triggered Earth's last mass-extinction, extinguishing ~ 75% of species diversity and facilitating a global ecological shift to mammal-dominated biomes. The claim is the Tanis creatures were killed and entombed on the actual day a giant asteroid struck Earth. Fossils from dinosaurs and other animals from thousands of years before the asteroid impact are very hard to come by, leading some to believe . 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- There was no advanced decay. [5] The fish were not bottom feeders. The exceptional nature of the findings and conclusions have led some scientists to await further scrutiny by the scientific community before agreeing that the discoveries at Tanis have been correctly understood. It needs to be explained. 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. The Dakotaraptor fossil, next to a paleontologist for scale. 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" . He says he did so because the isotopic data had been supplied as a non-digital data set by a collaborator, archaeologist Curtis McKinney of Miami Dade College, who died in 2017. 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. Additional fossils, including this beautifully preserved fish tail, have been found at the Tanis site in North Dakota. [20], Later discoveries included large primitive feathers 3040cm long with 3.5mm quills believed to come from large dinosaurs; broken remains from almost all known Hell Creek dinosaur groups, including some incredibly rare hatchling and intact egg with embryo fossils; fossil pterosaurs for which no other fossils exist at that time; drowned ant nests with ants inside and chambers filled with asteroid debris; and burrows of small mammals living at the site immediately after the impact. The findings each preclude correlation with either the Cantapeta or Breien, This page was last edited on 25 February 2023, at 16:30. Douglas Preston's writing about the discovery lauds it as one of the . "Those few meters of rock record the wrath of the Chicxulub impact and the devastation it caused." This whole site is the KT boundary We have the whole KT event preserved in these sediments.
A North Dakota Excavation Had One Paleontologist Rethinking The By looking through this window into the past, we can apply these lessons to today. I dont believe that Curtis himself went to another lab, he was ill for many years, Sacasa says. [1]:p.8 Instead, the initial papers on Tanis conclude that much faster earthquake waves, the primary waves travelling through rock at about 5km/s (11,000mph),[1]:p.8 probably reached Hell Creek within six minutes, and quickly caused massive water surges known as seiches in the shallow waters close to Tanis. He suggested that the impact caused huge seiches (or tsunamis), which allowed the mosasaur tooth to travel from fresh water to that spot, along with freshwater sturgeon that may have choked on glassy pieces from the collision, reported Science.
A Fossil Snapshot of Mass Extinction | NOVA | PBS DePalma submitted his own paper to Scientific Reports in late August 2021, with an entirely different team of authors, including his Ph.D. supervisor at the University of Manchester, Phillip Manning. In June 2021, paleontologist Melanie During submitted a manuscript to Nature that she suspected might create a minor scientific sensation. [1]:Fig.1 and p.9181-8192 Although other flooding is evidenced in Hells Creek, the Tanis deposit does not appear to relate to any other Marine transgression (inland shoreline movement) known to have taken place. "It's not just for paleo nerds. This impact, which struck the Gulf of Mexico 66.043 million years ago, wiped out all non-avian dinosaurs and many other species (the so-called "K-Pg" or "K-T" extinction).
Contributions to The Journal of Paleontological Sciences Scientists find fossil of dinosaur 'killed on day of asteroid strike' The Tanis site was first identified in 2008 and has been the focus of fieldwork by paleontologist Robert DePalma since . While DePalma corrected his claim, his reputation still took a hit.
Dinosaurs' Last Spring: Groundbreaking Study Pinpoints Timing of (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.). Sir David Attenborough is to examine the mystery of the dinosaurs' last days in a BBC1/PBS/France Tlvisions feature film that will unearth a dig site hidden in the hills of North Dakota. [3] DePalma then presented a paper describing excavation of a burrow created by a small mammal that had been made "immediately following the K-Pg impact" at Tanis. Top editors give you the stories you want delivered right to your inbox each weekday. Bottom left, micro-CT image showing cutaway of clay-altered ejecta spherule with internal core of unaltered impact glass. 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. He says his team came up with the idea of using fossils isotopic signals to hunt for evidence of the asteroid impacts season long ago, and During adopted it after learning about it during her Tanis visita notion During rejects. A fossil, after all, is only created under precise circumstances, with the dinosaur dying in a place that could preserve its remains in rock. . When one paleontologist began excavating a dig site in the mountains of North Dakota, he soon discovered new dinosaur evidence that may change history. Asked where McKinney conducted his isotopic analyses, DePalma did not provide an answer. Science and AAAS are working tirelessly to provide credible, evidence-based information on the latest scientific research and policy, with extensive free coverage of the pandemic. The findings are the work of paleontologist Robert DePalma, who has previously attracted controversy. DePalma made major headlines in March 2019, when a splashy New Yorker story revealed the Tanis site to the world. Get more great content like this delivered right to you! Robert DePalma uncovers a preserved articulated body of a 65-million-year-old fish at Tanis. Robert DePalma r son till tandkirurgen Robert De Plama Sr i Delray Beach. A 2-centimeter-thick layer rich in telltale iridium caps the deposit. AAAS is a partner of HINARI, AGORA, OARE, CHORUS, CLOCKSS, CrossRef and COUNTER. Instead, much faster seismic waves from the magnitude 10 11.5 earthquakes[1]:p.8 probably reached the Hell Creek area as soon as ten minutes after the impact, creating seiche waves between 10100m (33328ft) high in the Western Interior Seaway. Tanis is a significant site because it appears to record the events from the first minutes until . Since 2012, paleontologist Robert DePalma has been excavating a site in North Dakota that he thinks is "an incredible and unprecedented discovery". Their team successfully removed fossil field jackets that contained articulated sturgeons, paddlefish, and bowfins. These fossils were delivered for research to the Field Museum of Natural History in Chicago. It reads: Editors Note: Readers are alerted that the reliability of data presented in this manuscript is currently in question. 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. The site, dubbed "Tanis," first underwent excavation in 2012, with DePalma and his team digging along a section known as the Hell Creek Formation (via Boredom Therapy). [8] Following suspicions of manipulating data, a complained was lodged against DePalma with the University of Manchester. 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. Could this provide evidence to the theory that an asteroid did indeed cause the mass extinction of the dinosaurs? 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 fish contain isotope records and evidence of how the animals growth corresponded to the season (tree rings do the same thing).
How to interpret the new dinosaur fossil graveyard study - Quartz DePalma, Robert | Department of Geology Such a conclusion might provide the best evidence yet that at least some dinosaurs were alive to witness the asteroid impact. Robert DePalmashown here giving a talk at NASA's Goddard Space Flight Center in Aprilpublished a paper in December 2021 showing the asteroid that killed the dinosaurs struck Earth in the spring. View Obituary & Service Information The deathbed created within an hour of the impact has been excavated at an unprecedented fossil site in North Dakota. The nerds travel to the final day of the dinosaurs reign with paleontologist Robert DePalma and the legendary Tanis Site. 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 .
How the dinosaurs died: New evidence In PBS documentary - The The paleontologist believed that this new information further supported the theory that an asteroid killed the dinosaursalong with 75 percent of the animals and plants on Earth 66 million year ago. JPS.C.2021.0002: The Paleontology, Geology and Taphonomy of the Tooth Draw Deposit; Hell Creek Formation (Maastrictian), Butte County, South Dakota. [2][3] The full paper introducing Tanis was widely covered in worldwide media on 29 March 2019, in advance of its official publication three days later. High-resolution x-rays revealed this paddlefish fossil from Tanis, a site in North Dakota, contained bits of glassy debris deposited shortly after the dinosaur-killing asteroid impact. It also proves that geology and paleontology is still a science of discovery, even in the 21 st Century." Using radiometric dating, stratigraphy, fossil pollen, index fossils, and a capping layer of iridium-rich clay, the research team laboriously determined in a previous study led by DePalma in 2019 that the Tanis site dated from precisely . The first documents a turtle fossil found at Tanis, killed by impalement by a tree branch, and found in the upper of two units of surge deposit, bracketed by ejecta. 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. [10][11] The impactor tore through the earth's crust, creating huge earthquakes, giant waves, and a crater 180 kilometers (112mi) wide, and blasted aloft trillions of tons of dust, debris, and climate-changing sulfates from the gypsum seabed, and it may have created firestorms worldwide. It could be just one factor in a series of environmental events that led to their extinction.
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