The class Somasteroidea (Echinodermata, Asterozoa): morphology and occurrence
The class Somasteroidea Spencer, 1951, is basal within the subphylum Asterozoa. Members are most readily recognized by presence of series of rod-like so-called virgal ossicles extending laterally from each ambulacral ossicle. Five somasteroid genera are recognized and assigned to two families. Four...
Veröffentlicht in: | Journal of Paleontology. - SEPM Society for Sedimentary Geology. - 89(2015), 3, Seite 465-486 |
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Format: | Online-Aufsatz |
Sprache: | English |
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2015
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Zugriff auf das übergeordnete Werk: | Journal of Paleontology |
Schlagworte: | Biological sciences Business Physical sciences |
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