holocephaliのTwitterイラスト検索結果。 7 件
@CJSeaArt Because Fadenia and other Eugeneodont with complete fossil showed they have multiple gill slits. Single gill slits is the trait that only present in the more derived Holocephali. Also, apparently they lack pelvic fin. Though i'm unsure if this also applied to other Eugeneodonts.
#ExtinctFishoftheDay: Belantsea, a tiny cartilaginous ratfish (Holocephali) from Bear Gulch, Montana. It was an agile reef fish with a beak of "fangs". It's unclear whether it moved like a tang, frogfish, or stingray given enlarged fins and flattened fossils
#ExtinctFishoftheDay Harpagofututor, another Carboniferous "eel" related to ratfish/ghost sharks (Holocephali), with toothplates for shell-crushing. The name ("grappling hook copulator") is for the males' head-clasper "antlers", which females bit during mating! (Nix Illustration)
We're bringing #SharkWeek and this #MapOfLife to a close with the #holocephali
These are another subclass of cartilaginous fish which come together with the #elasmobrachs to create the class #chondrichthyes
Stethacanthus is an extinct, shark-like Holocephalian that died out 323 milllion years ago & measured 70cm long.
(Credit DiBgd)
Stethacanthus is an extinct, shark-like Holocephalian that died out 323 milllion years ago & measured 70 cm long.
(Credit: DiBgd)