To Chew or Not to Chew: Evolution and anatomy of the squamate masticatory system

Jawed vertebrates (Gnathostomes) first occurred in the fossil record approximately 400 million years ago. Since then, vertebrates have taken many different evolutionary trajectories, with some lineages persisting in aquatic environments and others infiltrating land. These diverse ecological and biological demands put significant functional responsibility on the vertebrate feeding system.
In this presentation for the NHSM Herp Club, Bianca Neale describes the origin and evolution of the first jaws, how jaw anatomy has evolved through time, and how squamates - i.e., lizards and snakes - utilize their unique jaw morphology.
Originally from Ohio, Bianca graduated from the University of Cincinnati with their Bachelor’s of Science in Geology and Biology in 2023. Now, Bianca is a second year PhD student in the Center for Functional Anatomy and Evolution at Johns Hopkins. Their work focuses on the drivers of morphological variation in the jaws of squamates and how these variations can inform us on the biology of extinct fossil taxa. Bianca specifically has a soft spot for snakes and is a proud pet-parent to Nigel, a 14-year-old ball python, and Chert, a 3-year-old boa constrictor.
Are you fascinated by reptiles and amphibians? The Natural History Society of Maryland’s Herp Club promotes the proper husbandry, conservation, study, and appreciation of reptiles and amphibians. Amateurs, professionals, and kids of all ages are welcome. Meetings are held the second Wednesday of every month and are open to the public.
Membership to NHSM is required to join any of our clubs. NHSM membership is $35 for individuals, $50 for families; Herp Club membership is an additional $5 for individuals and $10 for families annually.www.marylandnature.org/club-membership/
Learn more about NHSM Clubs: kzbin.info/www/bejne/pnqkaKGXh8-LrdU