. The dinosaur book : the ruling reptiles and their relatives. Dinosaurs; Reptiles, Fossil. The system under which all animals and plants are classified PHYLUM. SUPERCLASS PISCES TETRAPODA-< CLAS! AGNATHA (Jowliii vartabratat) PLACODERMI (Cartaln prlmltlva "flthat") CHONDRICHTHYES (the shark*) OSTIICHTHYIS _ (Tha bony flthai) ~AM»HlalA (Tha amphibians) RIPTIIIA (Tha raptllat) AVIS (Tha blrdt) MAMMALIA (Tha mammalt) The classification of animals and plants, taken as a whole, involves more than just the binomial designations of genera and species. It is extended to include increasin
. The dinosaur book : the ruling reptiles and their relatives. Dinosaurs; Reptiles, Fossil. The system under which all animals and plants are classified PHYLUM. SUPERCLASS PISCES TETRAPODA-< CLAS! AGNATHA (Jowliii vartabratat) PLACODERMI (Cartaln prlmltlva "flthat") CHONDRICHTHYES (the shark*) OSTIICHTHYIS _ (Tha bony flthai) ~AM»HlalA (Tha amphibians) RIPTIIIA (Tha raptllat) AVIS (Tha blrdt) MAMMALIA (Tha mammalt) The classification of animals and plants, taken as a whole, involves more than just the binomial designations of genera and species. It is extended to include increasing- ly comprehensive categories; thus genera are combined into families, families are grouped into orders, orders are combined into the higher category of classes, while various classes make up phyla. The arrange- ment may be expressed, from the higher to the lower categories (or to put it another way, from the greater to the lesser di- visions) as follows: Suppose we wish to express the position of a modern reptile, the rattlesnake, by the system of Linnaean Nomenclature. Kingdom—Animal (animals as opposed to plants) Phylum—Chordata (animals with back- bones) Class—Reptilia (the reptiles) Order—Squamata (the lizards, snakes, and their relatives) Family—Crotalidae (the pit vipers) Genus—Crotalus (rattlesnakes) Species—adamant eus (the dia- mond-back rattler) The great primary divisions of the animal kingdom are the phyla. For instance there is a Phylum Protozoa for all single-celled animals, so many of which are unpleasantly known to us as diseases. Then there is a Phylum Porifera for the sponges, a Phylum Coelenterata for the corals, a Phylum Arthropoda for the insects, spiders, and crustaceans, and so on. All the animals with backbones are contained within a single phylum, known as the Vertebrata or Chordata. This phylum may be subdivided as shown opposite. Two classes, Amphibia and Reptilia, especially concern us in this present work. 136. Please note that thes
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Keywords: ., bookcentury1900, bookpublishernewyork, booksubjectreptilesfossil
