Acrodont

Acrodont

Acrodont is a formation of the teeth whereby the teeth are consolidated with the summit of the alveolar ridge of the jaw without sockets. [Plough, F. H. et al. (2002) "Vertebrate Life", 6th Ed. Prentice Hall Inc., Upper Saddle River, NJ. ISBN 0130412481] The term also refers to species of reptiles that have such a formation. This formation is common in the order Squamata, [Kearney, M. (2003) Systematics of the Amphisbaenia (Lepidosauria: Squamata) Based on Morphological Evidence from Recent and Fossil Forms. "Herpetological Monographs." Vol. 17. pp. 1-74.] with the only other teeth formation in this order being pleurodont. Acrodontal tooth attachment can also be seen in many teleosts and Sphenodons (tuatara).

References

External links

* [http://www.palaeos.com/Vertebrates/Bones/Teeth/ToothImplantation.html Tooth Implantation]
* [http://www.peteducation.com/article.cfm?cls=17&cat=1848&articleid=2812 Oral Cavity of Reptiles - Anatomy and Physiology]


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  • Acrodont — Ac ro*dont, n. [Gr. a kros summit + odoy s, odo ntos, a tooth.] (Zo[ o]l.) One of a group of lizards having the teeth immovably united to the top of the alveolar ridge. a. Of or pertaining to the acrodonts. [1913 Webster] …   The Collaborative International Dictionary of English

  • acrodont — ACRODÓNT, Ă adj. (despre reptile) cu dinţii sudaţi pe marginea superioară a maxilarelor. (< fr. acrodonte) Trimis de raduborza, 15.09.2007. Sursa: MDN …   Dicționar Român

  • acrodont — type of tooth ankylosed to the jaw along the midline of the jawbone, rather than to the inner edge, the condition in most fishes. Attachment is by connective collagenous tissue with impregnated calcium salts and, in maxillary and mandibular teeth …   Dictionary of ichthyology

  • acrodont — acrodontism, n. /ak reuh dont /, adj. Zool. having rootless teeth fastened to the alveolar ridge of the jaws. [1840 50; ACR + ODONT] * * * …   Universalium

  • acrodont — 1. adjective having teeth immovably united to the top of the alveolar ridge 2. noun One of a group of lizards having the teeth immovably united to the top of the alveolar ridge …   Wiktionary

  • acrodont — Tooth attachment in some lower vertebrates (mainly fish) in which the teeth rest on the edge of the jaw bone rather than in sockets or alveoli. [acro + G. odous, tooth] …   Medical dictionary

  • acrodont — n. organism which has rootless teeth which are attached to the ridge of the jaw bones (Zoology) …   English contemporary dictionary

  • acrodont — ac·ro·dont …   English syllables

  • acrodont — /ˈækrədɒnt/ (say akruhdont) adjective 1. with rootless teeth fastened to the alveolar ridge of the jaws. 2. with sharp tips on the crowns of the cheek teeth. {acr(o) + odont} …  

  • acrodont —   a. (of a tooth) fused with the jaw; having such teeth …   Dictionary of difficult words

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