Gavialidae

Come leggere il tassoboxProgetto:Forme di vita/Come leggere il tassobox
Come leggere il tassobox
Gavialidae
Gaviale del Gange (Gavialis gangeticus)
Classificazione scientifica
DominioEukaryota
RegnoAnimalia
PhylumChordata
ClasseReptilia
OrdineCrocodylia
SuperfamigliaGavialoidea
FamigliaGavialidae
Adams, 1854
Sottogruppi

I gavialidi (Gavialidae) sono una famiglia di rettili, appartenenti all'ordine dei Crocodylia. I gavialidi sono rappresentati attualmente da una sola specie, il gaviale del Gange (Gavialis gangeticus), che vive in India. Sono note anche numerose specie estinte. Il cosiddetto falso gaviale (Tomistoma schlegelii) è stato a volte incluso nella famiglia, a causa di alcune somiglianze nella morfologia e nel comportamento, ma è solitamente ritenuto un membro della famiglia dei crocodilidi per alcune caratteristiche, in particolare nel cranio. In ogni caso, alcuni studi genetici indicherebbero che il gaviale e il falso gaviale potrebbero essere strettamente imparentati, forse nella stessa famiglia.

I gavialidi sono grandi rettili semiacquatici, simili a coccodrilli, ma con un muso più sottile. Il muso lungo e stretto è utile per catturare pesci, poiché i gaviali sono sprovvisti della forza nelle fauci grazie alla quale i coccodrilli riescono invece a predare anche grandi mammiferi.

Tassonomia

Famiglia Gavialidae

Inoltre, i tomistomini potrebbero appartenere a questo gruppo:

† indica i gruppi estinti

Bibliografia

  • Magnusson, William E. (1998). Cogger, H.G. & Zweifel, R.G., ed. Encyclopedia of Reptiles and Amphibians. San Diego: Academic Press. pp. 229–230. ISBN 0-12-178560-2.

Altri progetti

Collegamenti esterni

  Portale Rettili: accedi alle voci di Wikipedia che trattano di rettili

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