A Manual of Palaeontology for the Use of Students: With a General Introduction on the Principles of Palaeontology

abundant allied amongst anchylosed animal Annelides aperture appear appendages articulated attained beak beds belong Birds Bivalves body bones bony Brachiopods calcareous Cambrian Carboniferous Carboniferous Rocks Cephalopods Chalk characteristic clays commence composed comprising consists Corals Cretaceous Cretaceous period Crinoids Crustaceans Cycads deposits Devonian division dorsal Eocene Eocene Tertiary existing species extinct feet fins fishes Foraminifera formation forms fossils Ganoids genera genus gills Graptolites horny Hydrozoa incisors integument Jurassic known Lastly Laurentian limbs Limestone living lower jaw Lower Silurian Mammals marine Mesozoic Miocene molars Mollusca mouth North America occur Old Red Oolites operculum pair Paleozoic Permian plants plates Pliocene Polyzoa portion possession Post-Pliocene posterior present day Red Sandstone regarded remains represented Reptiles ribs septa shales shell Silurian Rocks single siphuncle sometimes spines strata sub-kingdom sub-order surface tail teeth thickness toes Trias Triassic tube Upper Cambrian Upper Silurian valve ventral Vertebrates whilst Zoantharia