| 词条 | Gyroptychius |
| 释义 |
| name = Gyroptychius | fossil_range = Mid Devonian | image = Gyroptychius agassizi.JPG | image_width = 250px | regnum = Animalia | phylum = Chordata | classis = Sarcopterygii | ordo = Osteolepiformes | genus = Gyroptychius | species = G. agassizi | binomial = Gyroptychius agassizi }} Gyroptychius is an extinct genus of osteolepiform lobe-finned fish from the Devonian period. Gyroptychius was a fast riverine predator with an elongated body about {{convert|30|cm|in}} long. As its eyes were relatively small, it is presumed to have hunted by smell rather than sight. Gyroptychius had short jaws which gave it a powerful bite. All its fins except the pectorals were moved to the back to the body, increasing the power of the tail while swimming.[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= 43|isbn= 1-84028-152-9}} {{osteolepiforms}}{{portal|Paleontology}}{{paleo-lobefinned-fish-stub}} 4 : Prehistoric lobe-finned fish genera|Megalichthyiforms|Devonian bony fish|Devonian fish of Europe |
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