| Tarrasiiformes Temporal range: | |
|---|---|
 | |
| †Paratarrasius hibbardi Lund and Melton Jr. 1982 from the Mississippian (Serpukhovian) Heath Formation of Bear Gulch, Montana | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | † Tarrasiiformes |
| Families | |
| |
Tarasiiformes is an extinct order of prehistoric ray-finned fish. [1]
Tarrasius is an extinct genus of Tarasiiformes. Tarrasius problematicus (of Mississippian origin, ~ 350 Ma) featured a fully regionalized tetrapod-like spine divided into 5 distinct segments. [5] [6] It is not considered a transitional fossil though, but an extreme example of convergent evolution.
Eosynanceja is an extinct genus of prehistoric ray-finned fish that lived during the lower Eocene.
Lissoberyx is an extinct genus of prehistoric ray-finned fish belongon to the family Trachichthyidae. Lissoberyx is a trachichthyid, but it shows more resemblance to the holocentrids than any other trachichthyid.
Eubiodectes is an extinct genus of prehistoric bony fish that lived during the Cenomanian.
Mesoclupea showchangensis is an extinct ichthyodectiform ray-finned fish that lived in freshwater environments in what is now China during the Early Cretaceous epoch. It differs from its sister genus, Chuhsiungichthys, primarily by having a more posteriorly-placed dorsal fin.
Nematoptychius is an extinct genus of prehistoric bony fish that lived from the Visean age of the Mississippian epoch to the Bashkirian age of the Pennsylvanian epoch in what is now Scotland, Belgium and France.
Wardichthys is an extinct genus of prehistoric bony fish that lived during the Tournaisian stage of the Mississippian epoch.
Pseudoegertonia is an extinct genus of prehistoric bony fish that lived during the Maastrichtian age of the Cretaceous period and Danian age of the Paleocene epoch.
Acanthonemus is an extinct genus of prehistoric marine ray-finned fish that lived from the early Eocene. It contains a single species, A. subaureus, known from the famous Monte Bolca site in Italy. It is the only genus in the extinct family Acanthonemidae.
Eolactoria sorbinii is an extinct prehistoric boxfish that lived during the Lutetian epoch of the middle Eocene, in Monte Bolca. It had two pairs of long spines, one over each eye, and one pair beneath the anal and caudal fins, arranged very similarly to those possessed by the modern genus Lactoria, but much longer. E. sorbinii had a fifth spine between the two eye-spines, arranged and looking very much like a nose.
Acentrophorus is an extinct genus of prehistoric freshwater and marine ray-finned fish from the Roadian to the Wuchiapingian of England, Germany (Kupferschiefer), Italy and Russia. There may also be a Triassic occurrence in Australia.
Sundayichthys is an extinct genus of prehistoric bony fish that lived during the Carboniferous period in what is now South Africa. Fossils were recovered from the Upper Witteberg Series.
Eoeugnathus is an extinct genus of prehistoric ray-finned fish belonging to the Halecomorphi. Eoeugnathus existed during the Middle Triassic in what is now Italy, Spain, and Switzerland. The type species is Eoeugnathus megalepis (monotypy).
Kentuckia is an extinct genus of prehistoric bony fish.
Phanerosteon is an extinct genus of prehistoric bony fish from the Carboniferous period. The type species, P. mirabile, was recovered from the Calciferous sandstone series (Pennsylvanian), Scotland. A second species, P. phonax was described from the Serpukhovian aged Bear Gulch Limestone lagerstätte in Montana, United States.
Pholidolepis is an extinct genus of prehistoric ray-finned fish.
Pholidophoroides is an extinct genus of prehistoric ray-finned fish.
Pleuropholis is an extinct genus of prehistoric ray-finned fish.
Thoracopteridae is an extinct family of prehistoric bony fish classified with the order Peltopleuriformes, containing four genera: Thoracopterus, Gigantopterus, Potanichthys and Italopterus. This lineage of Triassic flying fish-like Perleidiformes converted their pectoral and pelvic fins into broad wings very similar to those of their modern counterparts. However, this group is not related to modern flying fish from the family Exocoetidae, instead being a case of convergent evolution.
Spinacanthidae is an extinct prehistoric family of tetraodontid bony fish that lived from the Lutetian epoch of Eocene Monte Bolca.
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