Current Lab Members
Collecting samples for K12 teacher kits

Graduate Students

Noel Hernandez Gomez, MS candidate expected completion 2025 (UTK)

Noel joined the lab in January 2023.  He completed his BS degree at University of South Florida where he was active in scientific communication and worked with fossil echinoderms in the lab of Dr. Sarah Sheffield. 


Mariana Vilela de Andrade, MS candidate expected completion 2024 (UTK)

Mariana joined the Stigall Lab in Fall 2022 and is interested in exploring the relationships among morphology, geographic distribution, niche stability, and environmental change.  She completed her BS degree in Biology at the Federal University of Mato Grosso (Brazil). Mariana is excited to expand her expertise into the fossil record, specially with tiny brachiopods. 

Sarah Hennessey, MS candidate expected completion 2023 (OHIO)

Sarah joined the Stigall Lab in Fall 2021 after graduating from DePauw University with her Bachelors in Geology and Studio Art. For her thesis, Sarah is interested in exploring environmental influences on Ordovician brachiopod communities, particularly body size. Sarah loves being in the field and led a team on a two-week field expedition in the Arbuckle Mountains of Oklahoma for her thesis work. She has presented the initial results of her thesis at the 2022 SE-NC sectional GSA meeting in Cincinnati, Ohio and the 2022 Annual GSA meeting in Denver, Colorado. Outside of the lab, Sarah is also interested in combining her geology and art background through illustration and exploration of the relationship between the arts and sciences.


We are always on the lookout for outstanding undergrads to join the lab. If you are interested, contact Dr. Stigall.


Lab alumni