Definition of Acanthodian. Meaning of Acanthodian. Synonyms of Acanthodian

- Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes). They are currently considered to represent a paraphyletic grade of various...
- This list of acanthodian genera is an attempt to create a comprehensive listing of all genera that have ever been included in the subclass Acanthodii...
- considered to have evolved from acanthodians. The discovery of Entelognathus and several examinations of acanthodian characteristics indicate that bony...
- supposedly includes the tetrapods, bony fish, and the wholly extinct acanthodian fish. Key characters of this group include an operculum and a single...
- Xylacanthus is a genus of extinct acanthodian fish belonging to the family Ischnacanthidae. It lived during the Silurian to Devonian periods. Three species...
- Ordovician-aged microfossils of what have been identified as scales of either acanthodians or "shark-like fishes", may mark Gnathostomata's first appearance in...
- Nerepisacanthus is an extinct genus of acanthodian, probably acritolepid, from Middle Silurian (?late Llandovery (Telychian) to Ludlow stages) deposits...
- acanthodian from the Devonian of what is now Canada. It is the only genus in the suborder Brochoadmonoidei, whose relationship to other acanthodian orders...
- Acanthodiformes is an order of acanthodian fishes which lived from the Early Devonian to Early Permian. Family Acanthodidae Genus Acanthodes Genus Acanthodopsis...
- as Diplacanthida, Diplacanthoidei, or Diplacanthini) is an order of "acanthodian" stem-chondrichthyans which lived during the Devonian Period. incertae...