Open Directory - Science: Biology: Zoology: Chordates
See also: This category in other languages: - Article from Wikipedia describing the complex terminology necessary to be used when describing the anatomy of animals in order to avoid confusion. - Notes by Michael J. Farabee on the structure and functions of each of the four major animal tissue types: epithelial, muscle, connective and bone. - Gives the key anatomical characteristics of members of Phylum Hemichordata, Phylum Chordata and its Subphyla Urochordata, Cephalochordata and Vertebrata. Illustrated by slides. - Homeostasis describes the physical and chemical parameters that an organism must maintain to allow proper functioning of its component cells, tissues and organs. - Outlines the evolutionary history of animal groups from the simple coelomates to the chordates and the various vertebrate classes, with diagrams and photographs. - Article from Wikipedia describing the characteristics, functions and types of bone and how bone is formed. - Most tetrapods breathe with the lungs that they inherited from their ancestors such as the coelacanth and lungfishes and this is probably also true of extinct groups of stegocephalians. - Outlines the function of this system, its anatomy and physiology, and compares the mammalian organs with those of birds, amphibians, reptiles and fish. - Information on the invertebrate members of the phylum Chordata, what they have in common, and the characteristics of the two subphyla, Urochordata and Cephalochordata. - Educational and research resource with sections on ichthyology, herpetology, ornithology and mammalogy. - Information on the research and programs being undertaken at the Smithsonian Museum of Natural History. - Provides an index to animal sounds on the Web including birds, mammals, reptiles, amphibians, fish and insects. - In this article, Michael Laurin outlines the anatomy and evolution of the outer, middle and inner ear in land vertebrates. - Uses infrared photography to show the differences between warm and cold blooded animals. - Outlines the differences between the subphylum Vertebrata and the two subphyla, Urochordata and Cephalochordata. - Michael Laurin outlines the life history of tetrapods and extinct terrestrial vertebrates. - Abstract from an article studying a variety of regulatory mechanisms that determine the sex of offspring in the animal kingdom. - Searchable database of specimens that includes over 50,000 tissue samples for use in molecular analyses. - Comprehensive list of the technical terms you are likely to come across, with cross references. - Clips recorded by Doug Von Gausig of the sounds made by various amphibians, reptiles, mammals and birds. - Stegocephalians are tetrapods with digits rather than fins. Michael Laurin explores the relationship between the extant and the extinct members of this group. - Illustrated description of these three phyla, and the three classes within Urochordata. Also information on the larval stages which form part of the plankton. [PDF] - Abstract from a paper comparing the sensory systems of vertebrates with the less-developed systems of Amphioxus. - Though primarily designed to protect the brain, the architecture of an animal’s skull can help scientists to deduce many of its dietary and social patterns. - Describes the principle characteristics of tetrapods, which have well defined joints and digits, their classification and phylogenetic relationships. - Details of this year’s meeting of SVPCA and abstracts from presentations made in previous years. - Article by Clive Boorman and Sebastian Shimeld discussing directional asymmetric morphology in which sidedness is fixed for a population, species or higher taxon. [PDF] - SEB membership is open to scientists world-wide and the Animal Section is a thriving community of enthusiastic scientists working across diverse scientific fields. - Notes on the classification structure of the Vertebrates with a cladogram to review the evolutionary relationships of the craniata. - Describes research at the National University of Ireland, Galway into developing methods of constructing organs in the laboratory that can subsequently be used in medical applications. - Features images and measurements of mammalian skulls as well as updates and related links.
