| 词条 | Sphenocephalus |
| 释义 |
|name = Sphenocephalus |image = Sphenocephalos fissicaudus - Cenomanian.jpg |status = fossil |fossil_range = Late Cretaceous |regnum = Animalia |phylum = Chordata |classis = Actinopterygii |ordo = Perciformes |genus = Sphenocephalus |species = S. fissicaudus }} Sphenocephalus is an extinct genus of ray-finned fish that lived during the Cretaceous period. Fossils have been found in England and Italy. Sphenocephalus was about {{convert|20|cm|in|sigfig=1}} long, with a rather large head, and may have resembled a modern black bass in appearance. It was one of the earliest fish to have the pelvic fins placed beneath th pectoral fins, a common feature in modern fish that improves swimming manoeuvrability. Like the modern trout-perches, it possessed a mixture of modern and primitive features, and it was probably one of the earliest perciform fish.[1]References1. ^{{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|page= 41|isbn= 1-84028-152-9}} {{Portal|Paleontology}}{{Taxonbar|from=Q1668859}}{{paleo-perciformes-stub}} 2 : Prehistoric perciform genera|Cretaceous fish of Europe |
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