The Formorphology Lab at Rutgers University

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Exploring the Functional and Morphological Drivers of Major Evolutionary Transformations

Research

Major Transformations in vertebrates are among the most dramatic displays of macroevolutionary processes, and we are privileged to observe these fascinating progressions in various forms throughout the fossil record.

Lensed through the land-to-sea transition, the Formorphology Lab explores the functional morphological underpinnings and controls of Major Evolutionary Transformations. Given an organism’s form and function, why do clades evolve into new environments, and why do they proceed in their respective trajectories? How do they function in these new environments? We explore these questions, and others, primarily from a postcranial perspective to glean insights into these large-scale evolutionary processes. Using morphology, biomechanics, comparative anatomy, phylogenetics, computational fluid dynamics, kinematics, and more, the Formorphology Lab is excited to investigate the biological mechanisms behind the exciting evolutionary stories!

Explore

The Team

Kiersten Formoso

Principal Investigator

Kiersten Formoso is an Assistant Professor in the Department of Ecology, Evolution, and Natural Resources (DEENR) at Rutgers University, her undergraduate Alma Mater, and a Research Associate at the American Museum of Natural History. After graduating with a B.Sc. in DEENR in 2016, she spent time with the Paleobiology & Geobiology Research Group at Virginia Tech, then went on to complete her Ph.D. in Geological Sciences at the University of Southern California in Los Angeles. Kiersten was a Presidential Postdoc at Rutgers before successfully transitioning to faculty.

TBD

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Future Postdoc

Interested in joining the Formorphology Lab? We are hiring a 3-year postdoc to start in January 2027. Please fill out the Google Form below if interested!

Maia Klarin

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Lab Alumna: Master’s Student

Maia Klarin defended her Master’s in Earth and Planetary Sciences (EPS) in October 2026! Her Master’s thesis explored how trunk and tail morphology correlates with swimming style in semi-aquatic amniotes and will be submitted for publication within the year!

Lab News

New pub

Kiersten published an invited World View in Nature Reviews Biodiversity. Read for free at this special view only link.

Maia defended!

Maia defended her Master’s thesis and graduated! Yay for Maia! The Formorphology Lab’s first alumna.

Publications

Formoso, K. Three ideas to inspire curiosity in natural history education. Nat. Rev. Biodivers. (2026). https://doi.org/10.1038/s44358-026-00211-8

Alison T. Cribb, Kiersten K. Formoso, C. Henrik Woolley, James Beech, Shannon Brophy, Paul Byrne, Victoria C. Cassady, Amanda L. Godbold, Ekaterina Larina, Philip-Peter Maxeiner, Yun-Hsin Wu, Frank A. Corsetti and David J. Bottjer. Contrasting terrestrial and marine ecospace dynamics after the end-Triassic mass extinction event. (2023). Proceedings B. https://doi.org/10.1098/rspb.2023.2232

Kiersten K. Formoso, Michael B. Habib, Jorge Velez-Juarbe. The role of locomotory ancestry on secondarily aquatic transitions. Integrative and Comparative Biology. (2023). https://doi.org/10.1093/icb/icad112

Paul C. Sereno, Nathan Myhrvold, Donald M. Henderson, Frank E. Fish, Daniel Vidal, Stephanie L. Baumgart, Tyler M. Keillor, Kiersten K. Formoso, Lauren L. Conroy. Spinosaurus is not an aquatic dinosaur. eLife. (2022). https://doi.org/10.7554/eLife.80092

​Griffin, C.T., Stocker, M.R., Colleary, C., Stefanic, C.M., Lessner, E.J., Riegler, M., Formoso, K., Koeller, K. and Nesbitt, S.J. Assessing ontogenetic maturity in extinct saurian reptiles. Biology Reviews (2021). https://doi.org/10.1111/brv.12666

Formoso, Kiersten K., Nesbitt, Sterling J., Pritchard, Adam C., Stocker, Michelle R., and Parker, William G. A long-necked tanystropheid from the Middle Triassic Moenkopi Formation (Anisian) provides insights into the ecology and biogeography of tanystropheids. Palaeontologia Electronica. (2019). https://doi.org/10.26879/988 palaeo-electronica.org/content/2019/2824-long-necked-moenkopi-tanystropheid