A Guide to the Fossil Invertebrate Animals in the Department of Geology and Palaeontology in the British Museum (Natural History) ..: With 7 Plates and 96 Textfigures
order of the Trustees, 1911 - Invertebrates, Fossil - 183 pages
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Geological Timescale Opposite p
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allied ammonite animal anus arms arranged Bajocian beds belemnite body Bohemia Brachiopod British Bryozoa calcareous called Cambrian canals carapace Carboniferous cephalopods Chalk chambers Class closely Coal Measures coiled collection colony contains corals Crag Cretaceous crinoids deposited Devonian Diagram diam diameters divided Eadiolaria Eocene Epoch examples exhibited fauna folds food-grooves Foraminifera forms fossils found fossil front Gallery VIII Gallery XI gastropods Gault genera genus Geological gills Greensand groove Hexactinellida Hinde horny Jurassic lamellibranchs later layers Limestone living London Clay Lower Lias mantle marine middle Miocene modern Mollusca mouth Museum Nautilus Oolite Order Ordovician pairs Palaeozoic peduncle phragmocone plates Pliocene polyps pores preserved protoconch represented rocks sea-urchin seen segments Senonian septa shell shown side Silicispongiae Silurian siphuncle skeleton slab Solenhofen species specimens spicules sponges starfish structure surface suture Table-case Tertiary theca Trias Triassic Trigonia trilobites tubes Upper valve visceral wall Wall-case whorls Zoantharian