Spondylus latus (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. 184, pl. 80, fig. 2]
1815 Dianchora lata J. Sowerby, 1815
1822 Dianchora obliqua Mantell, 1822
1835 Spondylus lineatus Goldfuss, 1835
1881 Spondylus aequicostatus Etheridge, 1881
1822 Dianchora obliqua Mantell, 1822
1835 Spondylus lineatus Goldfuss, 1835
1881 Spondylus aequicostatus Etheridge, 1881
J. Sowerby & J. de C. Sowerby, 1812-1846, plate 80.
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«SPEC. CHAR. Semicircular, beak rising; free valve plain.
The obliquity of this species is scarcely to be observed; the lines of growth being slightly marked, and the gentle convexity of its form, added to the indistinctness of the few striae upon its surface, and the sharpness of its edge, give it a peculiar plainness of character.
This is from the Chalk near Lewes, by favour of Mr. Mantell; it is but little known, I believe, at present in Chalk, and it differs from any I have hitherto seen in other strata or formations.» JAMES SOWERBY, 1815
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«Medium sized (up to 50 mm in height); outline highly variable, but mostly elongate to oval; right valve inflated, cylindrical; outer surface of both valves with strong radial ribs and few, prominent growth lines, may merge lamellae fused to either substrate or other epifauna; left valve probably cemented to substrate by large attachment area and by lamellae.»
SØRENSEN, A. M., F. SURLYK & J. W. M. JAGT. 2012. Adaptive morphologies and guild structure in a high-diversity bivalve fauna from an early Campanian rocky shore, Ivö Klack (Sweden). Cretaceous Research, 33: 21-41, figs. 1-15. [p. 28]
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Spondylus latus (J. Sowerby, 1814); A. M. Sørensen, F. Surlyk & J. W. M. Jagt, 2012, Adaptive morphologies and guild structure in a high-diversity bivalve fauna from an early Campanian rocky shore, Ivö Klack (Sweden), figure 7C.
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«Description. Distinguished from other Spondylus species by its numerous smooth ribs, smooth ears, and virtual lack of spines. It is also considered to have a higher number of ribs than other species, while its left valve is often longitudinally elongate rather than suboval or circular.
Occurrence. Cenomanian-Campanian; localities from Devon and Dorset to Yorkshire; particularly along the Sussex coast in south-east England; Cenomanian forms are usually larger than later specimens.» 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. 132, 134]
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Spondylus latus (J. Sowerby); R. J. Cleevely & N. J. Morris, 2002, Introduction to molluscs and bivalves, plate 22, figures 2, 4-5.
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