Stethacanthus
Videos
Stethacanthus is an extinct genus of shark-like cartilaginous fish which lived from the Late Devonian to Late Carboniferous epoch, dying out around 298.9 million years ago. Fossils have been found in
Stethacanthus altonensis spine
Stethacanthuses DB 2
Restoration of a S. altonensis pair
Restoration of S. productus with prey
Chimaera
Videos
Chimaeras are cartilaginous fish in the order Chimaeriformes, known informally as ghost sharks, rat fish, spookfish, or rabbit fish; the last two names are also applied, respectively, to the ray-finne
Stethacanthus
…claspers with non-prismatic calcified cartilage at the distal ends. The spine-brush complex occupies the same site as the first dorsal fin on other ratfish and contains a basal plate extending inside a usually posterior-pointing dorsal spine composed of trabecular dentine. The spines resemble those of…
Hydrolagus colliei
Deep-sea chimaera photographed by the NOAAS Okeanos Explorer. Visible on its snout are tiny pores which lead to electroreceptor cells.
Callorhinchus callorynchus
Hydrolagus affinis