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. This is opposed to the acrodont and pleurodont dentition seen in squamate reptiles.[1] Notably, thecodonty appears to be the ancestral tooth condition in Amniota.[2] This morphology was once used as a basis for the now-defunct taxonomic group Thecodontia.
Subthecodonty, also called anyklosed thecodonty, refers to the asymmetrical implantation of a tooth in a shallow socket. Here, the labial (outer) wall of the tooth-bearing bone is higher than the lingual (inner) wall.[2]
References
[edit]- ↑ "Palaeos Vertebrates > Bones > Teeth: Tooth Implantation". Palaeos: Life through Deep Time. Retrieved 30 November 2022.
- 1 2 Bertin, Thomas J. C.; Thivichon-Prince, Béatrice; LeBlanc, Aaron R. H.; Caldwell, Michael W.; Viriot, Laurent (2018). "Current Perspectives on Tooth Implantation, Attachment, and Replacement in Amniota". Front. Physiol. 9: 1630. doi:10.3389/fphys.2018.01630. PMC 6258785. PMID 30519190.
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