World Library  
Flag as Inappropriate
Email this Article


Article Id: WHEBN0004291729
Reproduction Date:

Title: Trimucrodon  
Author: World Heritage Encyclopedia
Language: English
Subject: Ornithischia, Ornithischians, Taveirosaurus, Jurassic dinosaurs, List of dinosaur genera
Publisher: World Heritage Encyclopedia


Temporal range: Late Jurassic
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Ornithischia
Suborder: unknown
Genus: Trimucrodon
Thulborn, 1975
  • T. cuneatus Thulborn, 1975 (type)

Trimucrodon (meaning "three-pointed tooth") is a genus of herbivorous dinosaur from the Late Jurassic or Early Cretaceous of what is now Portugal. It has been classified as a basal ornithischian, but is a nomen dubium: it is a "tooth genus" known only from its teeth.

Between 1962 and 1967 German Porto Dinheiro, Lourinha,[1] in layers of the Camadas de Alcobaça Formation. This rock unit was then seen as dating from the Kimmeridgian stage, around 150 to 155 million years ago but was later suggested to date to the Cretaceous (early Berriasian stage), about 145 million years old.[2] One small tooth was recognised by Richard A. Thulborn as dinosaurian instead of mammalian and in 1973 he described and named it Trimucrodon cuneatus; the paper was not published until 1975.[3] The generic name is derived from Latin tri~, "three", and mucro, "dagger point", and Greek odous, "tooth". The specific name means "wedge-shaped" in Latin. The holotype tooth is part of the collection of the Lehrstuhl fur Paläontologie, Freie Universität at Berlin but has no published inventory number. Some other Portuguese teeth from the formation were referred to the species.

Thulborne originally classified Trimucrodon as a member of the Fabrosauridae. José Ignacio Ruiz-Omeñaca in 2001 placed it within the Heterodontosauridae.[4] However, recent authors have considered it a basal ornthischian of uncertain affiliations.[5]

See also


  1. ^ G. Krusat, 1969, "Ein Panthotheria-Molar mit dreispitzigem Talonid aus dem Kimmeridge von Portugal", Palaeontologische Zeitschrift 43(1/2): 52-56
  2. ^ Ruiz-Omeñaca J.I. & Canudo, J.I., 2004, "Dinosaurios ornitópodos del Cretácico inferior de la Península Ibérica", Geo-Temas, 6(5): 63-65
  3. ^ Thulborn, R.A. (1975). "Teeth of ornithischian dinosaurs from the Upper Jurassic of Portugal, with description of a hypsilophodontid (Phyllodon henkeli gen. et sp. nov.) from the Guimarota lignite". Serviços Geológicos de Portugal, Memória (Nova Série) 22:89-134
  4. ^ Ruiz-Omeñaca, J.I., 2001, Dinosaurios hipsilofodontidos (Ornithischia: Ornithopoda) en la Peninsula Iberica. Colectivo Arqeologico-Paleontologico de Salas, C.A.S., pp. 266
  5. ^  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.