Life of the Past |
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Page 23
... vertebrates , are of course very important animals today and have been in the past . Apart from insects they are the most generally known group of animals . The vertebrates are especially characterized by having a bony spinal column ...
... vertebrates , are of course very important animals today and have been in the past . Apart from insects they are the most generally known group of animals . The vertebrates are especially characterized by having a bony spinal column ...
Page 123
... vertebrate animals . It is indeed strange that such a group should be the first to appear with a skeleton in the ... vertebrates with two shells or valves , the brachiopods . Most brachiopods have a shell composed of calcium carbonate ...
... vertebrate animals . It is indeed strange that such a group should be the first to appear with a skeleton in the ... vertebrates with two shells or valves , the brachiopods . Most brachiopods have a shell composed of calcium carbonate ...
Page 259
... Vertebrate Paleozoology . Wiley . 822 pages . Emphasis is placed on evolutionary aspects of vertebrate paleontology , with discussion of mor- phologic evolution , classification , and functional morphology . Romer , A.S. 1971. Vertebrate ...
... Vertebrate Paleozoology . Wiley . 822 pages . Emphasis is placed on evolutionary aspects of vertebrate paleontology , with discussion of mor- phologic evolution , classification , and functional morphology . Romer , A.S. 1971. Vertebrate ...
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Common terms and phrases
acritarchs algae ammonoids amphibians angiosperms animals areas became extinct bones bony brachiopods bryozoans CALIFORNIA called Cambrian carnivores cells Cenozoic cephalopods changes climate coelom common cone conifers conspicuous contained corals Courtesy of Field Courtesy of National Cretaceous crust Devonian dinosaurs diverse dominant early earth Eocene ERSITY evolution evolutionary evolved fauna ferns Field Museum Figure fishes floras flowering plants formed fossil record gametophyte geologic graptolites gymnosperms habitats herbivores insects invertebrates Jurassic land plants LIBRARY living lophophore major groups mammals marine Mesozoic migration million Miocene molars Museum of Natural National Museum Natural History North America oceans Ordovician organisms paleontologists Paleozoic Pennsylvanian Permian phylum plant body Precambrian predators preserved primitive protists reefs reproductive SAN DIEGO sea floor sediment sedimentary rock seed shale shell skeleton skull South species specimen spores sporophyte stem structure teeth terrestrial tion tissues trees Triassic trilobites ungulates UNIV UNIVERSITY vascular plants vertebrate