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\title{Science AMA Series: We're a group of paleontologists and geologists on
our way to Antarctica to look for fossils of non-avian dinosaurs,
ancient birds, and more. AUA!}



\author[1]{AntarcticPaleo }%
\author[1]{r/Science AMAs}%
\affil[1]{Affiliation not available}%


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  \date{April 24, 2026}


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\begin{abstract}
Hi Reddit! Our research team---collectively working as part of the
Antarctic Peninsula Paleontology Project, or AP3---is on a National
Science Foundation-supported research vessel on its way to Antarctica.
This will be our third expedition to explore the Antarctic Peninsula for
fossils spanning the end of the Age of Dinosaurs (the Late Cretaceous)
to the dawn of the Age of Mammals (the early Paleogene). During that
time, roughly 90--60 million years ago, Antarctica was relatively warm
and lush, as well as home to a great diversity of plants and
animals---including dinosaurs! Antarctica may have also been the place
of origin for several key animal groups seen in today's
ecosystems---such as modern birds and certain kinds of mammals. On our
past expeditions we've made important discoveries, including fossils of
non-avian dinosaurs, fish, marine reptiles, and birds. During our 2011
field season, we discovered additional fossils of Vegavis iaai, an
extinct bird that is related to ducks and geese. Vegavis is the only
undoubted example of what is considered to be a modern bird that
co-existed with non-avian dinosaurs. We also discovered a previously
unrecognized set of rocks that were laid down during the
Cretaceous--Paleogene (K--Pg) boundary interval, one of the very few
such sets of rocks to be recognized on the entire Antarctic continent.
This recently-identified rock section could yield new insights into the
effects of the (in)famous K--Pg mass extinction that killed off all
non-avian dinosaurs. These paleontological and geological discoveries
have provided many clues as to what Antarctica was like tens of millions
of years ago, but countless mysteries remain. That's why we're off to
Antarctica to explore for new fossils and to gather data that will help
us better understand how the environment has changed through time. We
are: Matt Lamanna, the AP3 director, a paleontologist and the principal
dinosaur researcher at Carnegie Museum of Natural History, who
specializes in the study of dinosaurs from the Southern Hemisphere.
Julia Clarke, a professor of paleontology and evolutionary biology at
The University of Texas at Austin who named and described the Antarctic
fossil bird species Vegavis iaai in 2005. Julia studies the evolution of
dinosaurs, birds, and flight to better understand major transitions in
the history of life. Pat O'Connor, a professor of anatomical sciences at
Ohio University whose research interests include the evolution of
crocodiles, dinosaurs, and birds during the Cretaceous Period. Ross
MacPhee, a curator of mammalogy and professor at the American Museum of
Natural History who studies paleobiogeography, extinction, and cranial
development in mammals. Eric Gorscak, a doctoral candidate in Pat
O'Connor's lab at Ohio University who studies the evolutionary history
of titanosaurian sauropod dinosaurs during the Cretaceous. Abby West, a
PhD student at Columbia/American Museum of Natural History studying
fossil mammals. Chris Torres, a PhD student of Julia Clarke's, studying
fossil birds. Kerin Claeson, a paleontologist at the Philadelphia
College of Osteopathic Medicine studying fossil fishes. Meng Jin, a
paleontologist at the American Museum of Natural History studying fossil
mammals. Steve Salisbury, a paleontologist at The University of
Queensland studying fossil crocodilians and non-avian dinosaurs. Eric
Roberts, a geologist at James Cook University. Zubair Jinnah, a
geologist at the University of the Witwatersrand. Check out our
expedition website: antarcticdinos.org Follow us on Twitter at:
@AntarcticDinos \#ExpeditionAP3 We'll be back at 12 pm et (9 am PT, 5 pm
UTC) to answer your questions, ask us anything!%
\end{abstract}%



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