| 词条 | Hypsidoris |
| 释义 |
| name = Hypsidoris | status = fossil | fossil_range = {{Fossil range|Middle Eocene}} | regnum = Animalia | phylum = Chordata | classis = Actinopterygii | superordo = Ostariophysi | ordo = Siluriformes | superfamilia = Hypsidoroidea | familia = Hypsidoridae | familia_authority = Grande, 1987 | genus = Hypsidoris | genus_authority = Lundberg & Case, 1970 | type_species = Hypsidoris farsonensis | type_species_authority = Lundberg & Case, 1970 | subdivision_ranks = Binomial name | subdivision = Lundberg & Case, 1970 Hypsidoris oregonensis Grande & de Pinna, 1998 }} Hypsidoris is an extinct genus of catfish, classified within its own family Hypsidoridae, from the Eocene epoch of North America. Hypsidoris was about {{convert|20|cm|in}} long, and looked similar to the modern catfish, also possessing sensitive barbels used to detect prey in murky waters. It also had a vibration-sensitive organ called the Weberian apparatus, which consisted of specialized vertebrae at the front of the spinal column which passed vibrations to the inner ear, using the swim bladder as a resonance chamber. For defense against predators, Hypsidoris had large spines at the front of each pectoral fin. Like modern catfish, it would probably have eaten smaller fish, along with crayfish and other bottom-dwelling creatures.[1]There are two species. H. farsonensis is from the Early Middle Eocene of Wyoming and H. oregonensis is from the Middle Eocene of Oregon.[2] References1. ^{{cite book |editor=Palmer, D.|year=1999 |title= The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals|publisher= Marshall Editions|location=London|page= 40|isbn= 1-84028-152-9}} {{Portal|Paleontology}}{{Taxonbar|from=Q19850876}}{{paleo-rayfinned-fish-stub}}{{catfish-stub}}2. ^{{cite book|title=Fishes of the World|last=Nelson|first=Joseph S.|publisher=John Wiley & Sons, Inc|year=2006|isbn=0-471-25031-7}} 4 : Prehistoric ray-finned fish genera|Catfish genera|Eocene fish|Eocene fish of North America |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。