|Living Period||360 Million - 320 Million years ago|
|First Appearance||Chapter 102|
Crassigyrinus (meaning "thick tadpole") is an extinct genus of carnivorous stem tetrapod from the Early Carboniferous of Scotland and possibly Greer, West Virginia. The type specimen was originally described as Macromerium scoticum and lacked a complete skull. With subsequent discoveries, Crassigyrinus is now known from three skulls, one of which is in articulation with a fairly complete skeleton, and a couple of incomplete lower jaws. Crassigyrinus grew up to 2 meters in length, coupled with tiny limbs and unusually large jaws.
Crassigyrinus had a streamlined body up to 2 meters in length. Its limbs were tiny and virtually useless, implying that the animal was almost completely aquatic. Crassigyrinus had unusually large jaws, equipped with two rows of sharp teeth, the second row having a pair of palatal fangs. Studies have shown that Crassigyrinus may have been able to open its mouth as wide as 60 degrees, which further suggest that it was a powerful predator with a strong bite. This strongly suggests that it was ideally suited for catching fish, and the animal was probably a fast-moving predator.
Shirou's History Fact
Information will be released at Volume 13
Animal Battle arc
Several students of Akira's Group were seen eating Crassigyrinus.
|Chimera • Chimera II • Ernest • Mr. Lucky|
|Ammonoidea • Ancient Ticks • Anomalochelys • Arctodus Simus • Argentavis • Alectroenas Nitidissima • Ambulocetus • Andrewsarchus Mongoliensis • Arsinoitherium • Basilosaurus • Bos Primigenius • Canis Dirus • Chalicotherium • Cheirolepis • Crassigyrinus • Cyclotosaurus • Diatryma • Entelodon • Eumegamys • Eusmilus • Eusthenopteron • Gerrothorax • Gigantopithecus • Glyptodon • Harpagornis Moorei • Holoptychius • Hyaenodon • Hypsognathus • Hyracotherium • Ichthyornis • Ictitherium • Ischyromys • Kannemeyeria • Lystrosaurus • Macrauchenia • Mammuthus Imperator • Megaladapis Edwardsi • Meganeura Monyi • Megatherium Americanum • Meiolania • Mesohippus • Moeritherium • Necrolemur • Nemegtbaatar Gobiensis • Notharctus • Paraceratherium • Pristichampus • Propleopus • Ptilodus • Rodhocetus • Smilodon • Titanis Walleri • Triadobatrachus • Unknown Extinct Animals|