WebGnathostomata is traditionally a infraphylum, broken into three top-level groupings: Chondrichthyes, or the cartilaginous fish; Placodermi, an extinct grade of armored fish; and Teleostomi, which includes the familiar classes of bony fish, birds, mammals, reptiles, and amphibians. Some classification systems have used the term Amphirhina. WebJun 8, 2024 · Vertebrates are the largest group of chordates, with more than 62,000 living species. Vertebrates are grouped based on anatomical and physiological traits. The traditional groups include Agnatha, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. Animals that possess jaws are known as gnathostomes, meaning “jawed …
Compare-Contrast-Connect: Comparing Different Classes of Fish: …
WebFeb 2, 2024 · Bony skeleton Stronger and more rigid than cartilage. Made of collagen and calcium. The operculum (bony plate that protects the gills). Typically, gill slits cannot be seen. Figure 2: Bony skeleton General … WebTropical species are often brightly coloured. Most species have paired fins and skin covered with either bony or toothlike scales. Fishes generally respire through gills. Most bony fishes have a swim bladder, a gas-filled … blind pig fort collins colorado
Diversity of Vertebrates - Sam Houston State University
WebDec 21, 2024 · Physoclysters: In this type, there’s no duct, but they have a specialized gland (a gas gland), which, together with several capillaries, control the inflow and outflow of … WebJun 8, 2024 · The clade Chondrichthyes consists of sharks, rays, and skates, together with sawfishes and a few dozen species of fishes called chimaeras, or “ghost,” sharks. Chondrichthyes are jawed fishes that … WebNov 13, 2024 · Characteristics & Physiology of Bony Fish Bony fish not only have a hard, calcified skeleton, but a solid cranium protecting their brains as well. These animals depend upon their hinged jaw... blind pig palos heights