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Temporal range: Bajocian - Bathonian, 168–167 Ma
Teleidosaurus BW.jpg
restoration of Teleidosaurus calvadosii
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Suborder: Thalattosuchia
Genus: Teleidosaurus
Eudes-Deslongchamps, 1869
Species: T. calvadosii
Binomial name
Teleidosaurus calvadosii
(Eudes-Deslongchamps, 1866 [originally Teleosaurus])

Teleidosaurus is an extinct genus of carnivorous metriorhynchoid crocodyliform from Middle Jurassic (late Bajocian to early Bathonian stage) deposits of Normandy, France.[1][2] The name Teleidosaurus means "Complete lizard", and is derived from the Greek Teleidos- ("complete") and σαῦρος -sauros ("lizard").


The only species within Teleidosaurus is the type species T. calvadosii. Both T. bathonicus and T. gaudryi where referred to Eoneustes.[3] All species are from Calvados, Normandy of France. Recent phylogenetic analyses do not support the monophyly of Teleidosaurus.[1][4]

The type species was named Teleosaurus Calvadosii [Sic] by Jacques Amand Eudes-Deslongchamps in 1866;[5] however, it was his son, Eugène Eudes-Deslongchamps who erected the generic name Teleidosaurus later in 1869 [6] for Teleosaurus calvadosii. Teleidosaurus joberti is a junior synonym of T. calvadosii. T. calvadosii is known from the plastotype NHM R.2681, a complete skull and mandible and from NHM 32612, the plastotype of T. joberti, fragmentary right mandible. The holotype lost during the Second World War.[3]


  1. ^ a b Mark T. Young and Marco Brandalise de Andrade (2009). "What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany". Zoological Journal of the Linnean Society. 157 (3): 551–585. doi:10.1111/j.1096-3642.2009.00536.x. 
  2. ^ Wilkinson LE, Young MT, Benton MJ. 2008. A new metriorhynchid crocodilian (Mesoeucrocodylia: Thalattosuchia) from the Kimmeridgian (Upper Jurassic) of Wiltshire, UK. Palaeontology 51 (6): 1307-1333.
  3. ^ a b Mark T. Young, Stephen L. Brusatte, Marcello Ruta and Marco Brandalise de Andrade (2010). "The evolution of Metriorhynchoidea (Mesoeucrocodylia, Thalattosuchia): an integrated approach using geometrics morphometrics, analysis of disparity and biomechanics". Zoological Journal of the Linnean Society. 158 (4): 801–859. doi:10.1111/j.1096-3642.2009.00571.x. 
  4. ^ Mueller-Töwe IJ. 2005. Phylogenetic relationships of the Thalattosuchia. Zitteliana A45: 211–213.
  5. ^ Eudes-Deslongchamps, J.A. 1866. Description d'une espèce inédite de Téléosaure des environs de Caen, le Teleosaurus calvadosii. Bulletin Soc. Linn. Normandie 2 (1): 112-118.
  6. ^ Eudes-Deslongchamps, E. 1869. Notice sur les animaux fossiles de la famille des Téléosauriens recueillis en Normandie. Mémoires Acad. Imp. Sci. et Arts et Belles-Lettres: 31-80.