Lepisosteiformes

Lepisosteiformes is an order of ray-finned fish and the only living members of the clade Ginglymodi. Its only extant representatives are the gar (family Lepisosteidae), and it is defined as all members of Ginglymodi that are more closely related to gar than to the extinct Semionotiformes, the other major grouping of ginglymodians. They are one of two extant orders in the infraclass Holostei alongside the Amiiformes (now represented by only the bowfins).''''''

Lepidotes (from , 'covered with scales') (previously known as Lepidotus) is an extinct genus of Mesozoic ray-finned fish. It has long been considered a wastebasket taxon, characterised by "general features, such as thick rhomboid scales and, for most of the species, by semi-tritorial or strongly with dozens of species assigned to it. Fossils attributed to Lepidotes have been found in Jurassic and Cretaceous rocks worldwide. It has been argued that Lepidotes should be restricted to species closely related to the type species L. gigas, which are only known from the Early Jurassic of Western and

Scheenstia is an extinct genus of neopterygian ray-finned fish from the Late Jurassic–Early Cretaceous of Europe. Fossils have been found in both marine and freshwater environments. thumb|left|Life restoration of S. maxima Most species of the genus were previously referred to the related genus Lepidotes, but most Late Jurassic–Early Cretaceous species of that genus have since been re-classified as Scheenstia following detailed phylogenetic analysis. It is a member of Lepisosteiformes meaning that its closest living relatives are gars. The teeth of Scheenstia are low and rounded, and were likel

thumb|Collection of a Toadstone, illustrated in Hortus Sanitatis, published in [[Mainz in 1491.]] thumb|Lower jaw fragment of Scheenstia, showing the teeth in situ The toadstone, also known as bufonite (from Latin , "toad") and crapaud-stone, is a mythical stone or gem that was thought to be found in the head of a toad. It was supposed to be an antidote to poison and in this it is like batrachite, supposedly formed in the heads of frogs. Toadstones were actually the button-like fossilised teeth of Scheenstia (previously Lepidotes), an extinct genus of ray-finned fish from the Jurassic and Cret

Obaichthyidae (also known as "spiny gars" or "spike gars") is an extinct family of ginglymodian ray-finned fish that lived in what is now Africa, South America, and southern Europe during the Upper Cretaceous period (Aptian–Cenomanian ages). They were close relatives of the modern gars of the family Lepisosteidae, with the two groups making up the superfamily Lepisosteoidea. Though obaichthyids are generally similar to their extant relatives, they possessed a mobile maxilla along with a large posterior spine on their scales. The specializations of the skull seen in members of the family sugges

Isanichthys is an extinct genus of freshwater lepidotid ginglymodian fish from the Late Jurassic and Early Cretaceous. Four species are known from Thailand, China and the United Kingdom, two of which were previously classified in genera.

Araripelepidotes is a genus of ginglymodian fish.