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Academy of Natural Sciences
Catalogue of the Marine Gastropod Family Fasciolariidae: Special Publication 21 of the Academy of Natural Sciences of Philadelphia
Martin Avery Snyder (au)
Shelled mollusks are important to the study of evolution, since upon death, they leave behind a calcareous exoskeleton. Though molluscan fossils are sometimes nothing more than the molds formed by vanished specimens, most still bear the form of shells, often of extinct species. The most interesting problems that may be addressed through the study of fossils concern the adaptive development of various organisms over the vast span of geological time. The family Fasciolariidae is thought first to have appeared in the Cretaceous era, some 110 million years ago. Contents: The family Fasciolariidae; List of Genus-group taxa; Provisional arrangement of genus-group taxa; Genera removed from the family Fasciolariidae; List of Species-group taxa.
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Lewis and Clark Herbarium: Academy of Natural Sciences of Philadelphia Digital Imagery Study Set: Special Publication 19
Proceedings of The Academy of Natural Sciences (Part I -- Jan., Feb., and Mar., 1879)
Proceedings of The Academy of Natural Sciences (No. 5 -- Aug. and Sept., 1863)
Proceedings of The Academy of Natural Sciences (Part I -- Jan.-Apr., 1887)
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