WebJan 19, 2024 · Class Agnatha (Jawless fish) General Characteristics: Predicted to be the first vertebrates -> oldest known fossils/most similar to lancets, tunicates. (~550 million years ago) Have no fins, no scales, and … WebThe bony fish (Class Osteichthyes) can be subdivided into two groups: the ray finned fish (Actinopterygians) and lobe finned fishes (Sarcopterygians). ... They differ from the chondrosteans in a number of characteristics such the separation of the upper jawbone (maxilla) from the cheekbones and the possession of a few new bones (such as the ...
Chondichthyes - Fernbank Science Center
WebNov 29, 2024 · What are 5 characteristics of Osteichthyes? Key features of Osteichthyes. Skeleton more or less bony, vertebrae numerous. Skin with mucous glands and embedded dermal scales. some without scales. Paired fins. Mouth with many teeth (some … WebThe class Osteichthyes includes a large assemblage of true bony fishes. There are well over 30,000 to 40,000 living species, both freshwater and marine. Some of the freshwater forms are the carp, perch, bass, trout, catfish, sucker, etc., while the marine fishes are the tarpon, meckerel, tuna, sailfish, barracula, flying fish, etc. boyce edo
4.1 Introduction to Osteichthyes - Learning to Walk Coursera
WebJul 12, 2024 · Most of the world's fish species are categorized into two types: bony fish and cartilaginous fish.In simple terms, a bony fish … WebOsteichthyes (/ ˌ ɒ s t iː ˈ ɪ k θ i. iː z /), commonly referred to as the bony fish, is a diverse superclass of vertebrates that have skeletons primarily composed of bone tissue.They can be contrasted with the … WebJun 15, 2024 · Characteristics of Bony Fish. Most fish are bony fish, making them the largest group of vertebrates in existence today. They are characterized by: A head and pectoral girdles (arches supporting the forelimbs) that are covered with bones derived … guy addicted to hot cheetos