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Oct 18, 2023 · Sharks make up about 50% of all elasmobranch species. Rays and skates represent about a quarter of the remaining species diversity within the subclass Elasmobranchii. All share the distinctive anatomical and physiological adaptations that define these majestic ocean predators.
Elasmobranchii ( / ɪˌlæzməˈbræŋkiaɪ / [6]) is a subclass of Chondrichthyes or cartilaginous fish, including modern sharks (superorder Selachii), rays, skates, and sawfish (superorder Batoidea ).
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the Batoidea ( rays and kin).
Feb 24, 2023 · Elasmobranchii is a subclass of Chondrichthyes, or cartilaginous fish, encompassing sharks, rays, skates, and sawfish. The term Elasmobranch is derived from the Ancient Greek words elasmo- (“plate”) and bránchia (“gill”), and makes reference to the fishes’ broad, flattened gills.
Feb 18, 2019 · The term elasmobranch refers to the sharks, rays, and skates, which are cartilaginous fishes. These animals have a skeleton made of cartilage, rather than bone. These animals are collectively referred to as elasmobranchs because they are in the Class Elasmobranchii.
Contents. elasmobranch. fish subclass. Also known as: Elasmobranchii. Learn about this topic in these articles: major reference. In chondrichthyan: Problems of taxonomy. …further grouped into one subclass, Elasmobranchii, and the chimaeras into another, Holocephali.
Chondrichthyes consists of two groups, Holocephali and Elasmobranchii, and within Elasmobranchii are eight (8) orders of sharks. Each order tells us about the biology, physical characteristics and behavior of sharks in that order.
Oct 8, 2018 · Here we present de novo whole-genome assemblies of brownbanded bamboo shark and cloudy catshark and an improved assembly of the whale shark genome.
Aug 11, 2020 · Sharks are a group of elasmobranch fish, which are characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to...
Nov 24, 2023 · Elasmobranchs (sharks, rays and skates) are among the most threatened marine vertebrates, yet their global functional diversity remains largely unknown.
