ANT415H5 Lecture Notes - Lecture 2: Notochord, Osteichthyes, Chondrichthyes
Document Summary
Taxonomy and classification: ordering of animals into groups based on their relationships, carolus linnaeus (1707-1778, any single organism has one and only one correct name binomial nomenclature genus, species. Zoological classification ex) polar bear: kingdom animalia, phylum chordata, class mammalia, order carnivore, family ursidae, genus ursus, species maritimus. Kingdom: monera simple single celled organisms, protista complex single celled organism, fungi, plantae, animalia. Phylum: in animalia there are 30 phyla: eg) sponges, jellyfish, flatworms, insects, chordates (animals with spinal cords, chordata sub-phyla vertebrata. Jawless fish: cartilaginous fish, bony fish (~20,000 species) teleost, amphibia, mammalia (>4000 species, reptilian, aves (birds) Genus a collection of similar species believed to have a common ancestor. Species a reproductive community of populations that occupies a specific niche. Binomial nomenclature: two part name: genus (generic) species (specific, upper case and lower case, and write in italics, ursus maritimus or u. maritimus = polar bear, ursus spp.
