In the centre of the folds fossiliferous beds with crinoids have been found, and the black slates at the top of the series contain Myophoria and other fossils, indicating that the rocks are of Triassic age. [Please select]
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] The Crinoids are very scantily represented in the present creation. [Please select]
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In later times the group of Crinoids has been gradually dwindling in number and variety. [Please select]
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The Pentacrinus bears the closer relation to the more ancient Crinoids (Fig.) [Please select]
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The trilobites are gone, and of the crinoids only a remnant is left. [Please select]
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Around these breathing holes we frequently found fragments of clam-shells, sections of crinoids and sea-anemones. [Please select]
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In this stage of the earth's history the fishes grew constantly more plentiful, and the seas had a great abundance of corals and crinoids. [Please select]
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