Aulacodont

An aulacodont is an animal in which the dentition is arranged within grooves rather than individual sockets (like in thecodonty) or without bone encasement (like in acrodonts and pleurodonts). It is known from several aquatic amniotes: ichthyosaurs, Hesperornis, Ichthyornis, juvenile caimans, some cetaceans[1] and even some ctenochasmatoid pterosaurs.[2]

References

  1. ^ Thomas J. C. Bertin et al, Current Perspectives on Tooth Implantation, Attachment, and Replacement in Amniota, Front. Physiol., 21 November 2018 Sec. Craniofacial Biology and Dental Research Volume 9 - 2018 | https://doi.org/10.3389/fphys.2018.01630
  2. ^ Chang-Fu Zhou et al, First evidence for tooth-tooth occlusion in a ctenochasmatid pterosaur from the Early Cretaceous Jehol Biota, November 2021Geological Society London Special Publications 521(1):SP521-2021-141 DOI: 10.1144/SP521-2021-141
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