Tyrannosaur Expert; Dinosaur Paleontologist; University of Maryland Geology Faculty; Director of the College Park Scholars-Science & Global Change Program; Science Author; Cat Dad; 🦖🦕
I.J. Maniel, R. Almeida, D.L. Kimbrough, G.S. de la Puente, A.C. Garrido, F. Bellardini, J.B. Mahoney. 2026. Albian zircon U-Pb crystallization ages from tuff beds in the Candeleros and Huincul formations, Neuquén Basin, Argentina. Gondwana Research www.sciencedirect.com/science/arti...
Redirectingdoi.orgnews.berkeley.edu/2026/07/30/n...
North and South America weren’t always connected, but their mammals still found a way to intermingle - Berkeley NewsBefore the Panamanian land bridge formed about 3 million years ago, mammals on the two continents were isolated — or so biologists thought. New fossils show that they found ways to mix long before tha...news.berkeley.eduFrom academic.oup.com/zoolinnean/a...
A 10-million-year biogeographic holding pen primed the Great American Biotic Interchange | Science www.science.org/doi/10.1126/...
A 10-million-year biogeographic holding pen primed the Great American Biotic InterchangeThe movement of taxa between North and South America across the Panamanian land bridge, known as the Great American Biotic Interchange (GABI), established modern-day mammal assemblages in the Americas...www.science.orgPaleogenomic sex inference of mammoth remains sheds light on the anthropogenic nature of bone accumulations: Current Biology www.cell.com/current-biol...
Paleogenomic sex inference of mammoth remains sheds light on the anthropogenic nature of bone accumulationsMoots et al. use ancient DNA to compare woolly mammoth sex ratios from anthropogenic
bone accumulations and natural depositional contexts. The results show that accumulations
are female-biased, which ...www.cell.comPeerJ High fecundity in an early-diverging ichthyosaur with over ten fetuses peerj.com/articles/216... @peerj.bsky.social
‘Fake historian’ exposed as mastermind behind Trump’s Smithsonian obsession: report www.rawstory.com/trump-david-...
‘Fake historian’ exposed as mastermind behind Trump’s Smithsonian obsession: reportPresident Donald Trump's moves to discredit the Smithsonian Museum of American History are being driven by a notorious Christian nationalist "fake historian," according to a new report. According to J...www.rawstory.comHighly aquatic marine stem archosaur with soft tissue preservation | Science Advances www.science.org/doi/10.1126/...
Highly aquatic marine stem archosaur with soft tissue preservationA 240-million-year-old reptile exhibits elongate forelimbs, a morphology consistent with adaptations to an aquatic lifestyle.www.science.orgSong, Z., Pan, B., Guo, J. et al. Earliest siphuncle-bearing cephalopod from the early Cambrian. Nature (2026). doi.org/10.1038/s415...
Earliest siphuncle-bearing cephalopod from the early Cambrian - NatureEarly Cambrian Eoceras shaanxiense gen. et sp. nov. preserves septa and a segmented tube resembling a primordial siphuncle, extending cephalopod origins and revealing early assembly of chambered shell...doi.orgGiallombardo, A., Hoffman, E.A., O’Leary, M.A. et al. Cretaceous zhelestid mammals are zalambdalestoids. Nature (2026). doi.org/10.1038/s415...
Cretaceous zhelestid mammals are zalambdalestoids - NatureNew Mongolian fossil evidence shows zhelestids were not placental-like herbivore relatives, but a dental variant within Zalambdalestoidea, with distinctive molars alongside zalambdalestid skull and li...doi.orgCheckout this article I found at PLOS: dx.plos.org/10.1371/jour...
Morphology and articular configuration of the ceratopsid (Dinosauria: Ornithischia) lower hindlimb as revealed by a specimen from the Upper Cretaceous Dinosaur Park Formation of southern Alberta, Cana...Ceratopsid dinosaurs, such as Triceratops, are well-known for the striking horns and frills that are ubiquitous among members of the clade. But their postcranium has received little attention by compa...dx.plos.orgFull article: A revised anatomical and osteohistological description of ‘Erythrochampsa’ longipes (Broom, 1904) and its implications on early crocodyliform taxonomy and evolution www.tandfonline.com/doi/full/10....
A revised anatomical and osteohistological description of ‘Erythrochampsa’ longipes (Broom, 1904) and its implications on early crocodyliform taxonomy and evolutionEarly Crocodyliformes first appeared in the Late Triassic as generally small-bodied, terrestrial cursorial faunivores. They had a global distribution during the early Jurassic with species found on...www.tandfonline.comMorphological diversity in humeral remains from a South African Konzentrat‐Laggerstätte site provide new insights into the Early Triassic archosauromorph radiation - Tolchard - The Anatomical Record - Wiley Online Library anatomypubs.onlinelibrary.wiley.com/doi/10.1002/...
Morphological diversity in humeral remains from a South African Konzentrat‐Laggerstätte site provide new insights into the Early Triassic archosauromorph radiationThe end-Permian mass extinction event was the largest faunal mass extinction in the history of life on Earth. Understanding the recovery of terrestrial diversity in the Early Triassic is confounded b...anatomypubs.onlinelibrary.wiley.comBeneath the waves: Extraordinary dietary insights from a dismembered i... www.sciencedirect.com/science/arti...
Beneath the waves: Extraordinary dietary insights from a dismembered ichthyosaur from the lower CretaceousMarine reptile lineages thrived throughout the Mesozoic era and are known to have performed diverse roles in marine ecosystems. Ichthyosaurs are chara…www.sciencedirect.comRafal P. Piprek, Izabela Rams-Pociecha and Paulina C. Mizia Cranial Appendages in Ruminants: Diversity, Evolution, Development, and Molecular Basis of Horns, Pronghorns, Antlers, and Ossicones Biology 15(14): 1210 doi: doi.org/10.3390/biol... www.mdpi.com/2079-7737/15...
