acanthodians
1List of acanthodians — This list of acanthodians is an attempt to create a comprehensive listing of all genera that have ever been included in the subclass Acanthodii, excluding purely vernacular terms. The list includes all commonly accepted genera, but also genera… …
2fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …
3Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …
4Acanthodii — Taxobox name = Acanthodii fossil range = Early Silurian to Permian image width = 250px image caption = Acanthodes bronni regnum = Animalia phylum = Chordata subphylum = Vertebrata infraphylum = Gnathostomata classis = Acanthodii subdivision ranks …
5Prehistoric fish — are various groups of fishes that lived before recorded history. A few, such as the coelacanth still exist today and are considered living fossils.The first fish and the first vertebrates, were the ostracoderms, which appeared in the Cambrian… …
6Otolith — organs showing detail of utricle, ococonia, endolymph, cupula, macula, hair cell filaments, and saccular nerve …
7Teleostomi — Taxobox name = Teleostomi fossil range = Latest Ordovician Recent image width = 230px image caption = The Northern bluefin tuna regnum = Animalia phylum = Chordata subphylum = Vertebrata infraphylum = Gnathostomata unranked classis = Teleostomi… …
8Mesacanthus — Temporal range: Early Devonian Scientific classification Kingdom: Animalia Phylum …
9Cheiracanthus — Temporal range: Middle Devonian Scientific classification Kingdom: Animalia Phy …
10Psarolepis — |year=2001 |chapter=Something Fishy in the Family Tree |title=Rise of the dragon: Readings from Nature on the Chinese Fossil Record |publisher=University of Chicago Press |pages=pp.64 66||isbn=0226284913] . This new find was the strange fossil… …
