Spondylus striatus (J. Sowerby, 1815)
SOWERBY, J. & J. DE C. SOWERBY. 1812-1846. The Mineral Conchology of Great Britain; or coloured figures and descriptions of those remains of testaceous animals or shells. 7 vols., pls. 1-648 (and 2 bis). London. [p. 183, pl. 80, fig. 1]
1815 Dianchora striata J. Sowerby, 1815
1847 Spondylus capilatus Archiac, 1847
1847 Spondylus capilatus Archiac, 1847
J. Sowerby & J. de C. Sowerby, 1812-1846, plate 80.
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«SPEC. CHAR. Oblique, ovate-triangular, beak prominent, free valve obscurely ribbed.
Length and breadth nearly equal, and the form would be ovate, were it not for the projecting beak, from which the free valve is gradually flattened to a sharp edge, and which gives it a triangular aspect. The ears are small and continued along the sides.
I found this some years since at Chute Farm near Warminster, in the green sand, a place that afforded me an extraordinary variety on a small piece of land. The specimens vary a little, and have more or less Carbonate of Lime in them, filling up betwixt the calcedonic infiltration, which looks like a little worm shell or Serpula, but on inspection discovers a sort of stalagmitical form of the calcedony in circles, rings, or drops.» JAMES SOWERBY, 1815
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«Description. Large, obliquely ovate shell. Right valve usually attached over most of its surface, free part ornamented by radial ribs and shallow grooves with fine concentric lamellae. Left valve moderately convex with prominent umbo and small, smooth ears; ornamented by numerous equal, smooth, flattened radial ribs separated by deep grooves and concentric growth lines.
Remarks. S. striatus is larger and more obliquely-shaped than S. latus, and its ribs are less regular. Occurrence. Aptian-Cenomanian; Devon, Dorset and Wiltshire.» CLEEVELY, R. J. & N. J. MORRIS. 2002. Introduction to molluscs and bivalves. In A. B. Smith & D. J. Batten (Eds.): Fossils of the Chalk, 99-160. The Paleontological Association. London. [p. 131]
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Spondylus striatus (J. Sowerby); R. J. Cleevely & N. J. Morris, 2002, Introduction to molluscs and bivalves, plate 22, figure 6.
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