thecodont dentition

Thecodont dentition is a morphological arrangement in which the base of the tooth is completely enclosed in a deep socket of bone, as seen in crocodilians, dinosaurs and mammals, and opposed to acrodont and pleurodont dentition seen in squamate reptiles.{{cite web|url=http://palaeos.com/vertebrates/bones/teeth/tooth_implantation.html|access-date=30 November 2022|website=Palaeos: Life through Deep Time|title=Palaeos Vertebrates > Bones > Teeth: Tooth Implantation}} Notably, this appears to be the ancestral tooth condition in Amniota.{{cite journal|first1=Thomas J. C.|last1=Bertin|first2=Béatrice|last2=Thivichon-Prince|first3=Aaron R. H.|last3=LeBlanc|first4=Michael W.|last4=Caldwell|first5=Laurent|last5=Viriot|title=Current Perspectives on Tooth Implantation, Attachment, and Replacement in Amniota|journal=Front. Physiol.|date=2018|volume=9|page=1630|doi=10.3389/fphys.2018.01630|pmid=30519190|pmc=6258785|doi-access=free}} This morphology was once used as a basis for the now-defunct taxonomic group Thecodontia.