Definition of CHONDRICHTHYANS. Meaning of CHONDRICHTHYANS. Synonyms of CHONDRICHTHYANS

- (ikhthús) 'fish') is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage. They can...
- support a close relationship to symmoriiforms, a small group of bizarre chondrichthyans such as the bristle-spined Stethacanthus. Cladoselache and symmoriiforms...
- fossil chondrichthyans within the group. The definition of Elasmobranchii has since been subject to much confusion with regard to fossil chondrichthyans. Maisey...
- mosaic of features shared with both osteichthyans (bony fish) and chondrichthyans (cartilaginous fish). In general body shape, they were similar to modern...
- estimated the Holocephali split from the Elasmobranchii (the branch of chondrichthyans containing true sharks and rays) about 421 million years ago. Analysis...
- mermaid's purse, is the casing that surrounds the eggs of oviparous chondrichthyans. Living chondricthyans that produce egg cases include some sharks,...
- 439 million years ago, which are placed as acanthodian-grade stem-chondrichthyans. Brazeau, M. D.; Friedman, M. (2015). "The origin and early phylogenetic...
- fish) with a shark-like morphology, such as hybodonts. Shark-like chondrichthyans such as Cladoselache and Doliodus first appeared in the Devonian Period...
- The Hesseltal Formation or Blackcoloured Formation is a Late Cretaceous (late Cenomanian to early Turonian) geological formation from northern Germany...
- The Kuldana Formation is a fossil-bearing geological formation of Lutetian (Early Eocene) age which crops out in northern ****stan. The abundant fossil...