2023 American Association for the Advancement of Science. Science journalism's obligation to truth. Raw machine data are seldom supplied to end users (myself included) who contract for isotope analyses from a lab that does them., Cochran says DePalma erred in not including these data and their origins in his original manuscript, but the bottom line is that I have no reason to distrust the basic data or in any way believe that it was fabricated., Eiler disputes this. Abstract - Nasa They're perfectly preserved, Robert DePalma, paleontologist, via CNN. [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. Part of the phenomenally fossil-rich Hell Creek Formation, Tanis sat on the shore of the ancient Western Interior Seaway some 65 million years ago. 01/05/2021. Dont yet have access? Paleontologist Accused of Making Up Data on Dinosaur-Killing Asteroid The Tanis site was first identified in 2008 and has been the focus of fieldwork by paleontologist Robert DePalma since . Today, their fossils lie jumbled together at a site in North Dakota. The deposit may also provide some of the strongest evidence yet that nonbird dinosaurs were still thriving on impact day. UW News staff. He did send Science a document containing what he says are McKinneys data. 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. 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. The former Purdue President is now 76 years of age. In December 2021, DePalma and his colleagues published an important paper . DePalma made major headlines in March 2019, when a splashy New Yorker story revealed the Tanis site to the world. What we do know is that during the Jurassic period, great global upheaval occurred with increases in temperature, surging sea levels, and less humidity. This had initially been a seaway between separate continents, but it had narrowed in the late Cretaceous to become, in effect, a large inland extension to the Gulf of Mexico. Help News from Science publish trustworthy, high-impact stories about research and the people who shape it. 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. Science asked other co-authors on the paper, including Manning, for comment, but none responded. "I've been asked, 'Why should we care about this? New Evidence Shows Experts Have Dinosaurs' Extinction All Wrong ^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.