Spondylus lamellosus Kossmat, 1897
KOSSMAT, F. 1897. The Cretaceous deposits of Pondichery. Records of the Geological Survey of India, 30 (2): 51-111, pIs. 6-10. [p. 94, pl. 9, figs. 10a, 10b]
1897 Spondylus lamellosus Kossmat, 1897
F. Kossmat, 1897, plate 9.
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«This species, related to Spondylus calcaratus, Forb., which does not seem to be rare in the Trigonoarca beds, is distinguished by a very peculiar ornamentation. The surface of the shell has radiating folds, with numerous close set ribs having the same direction as the folds and covering them as well as the furrows between. Alternating, strong, concentric lamellae, arise at irregular distances from one another, but soon fade away at each end. The outline of the shell is roundish, very similar to that of Spondylus calcaratus, but there is no example showing the umbonal region. An example of the last-named species, which Stoliczka (loc. cit,, PI. XXX, Fig. 7a) figures, shows also some resemblance in the ornamentation, but the ribs are somewhat finer, and instead of the strong lamellae there are only irregular concentric folds.
Locality, Saidarampet, ¼ mile west of Rautankupam, etc., Trigonoarca beds. The following species, not previously known from Pondicherri, are only figured to show the agreement with forms from the Trichinopoli district :-- Siliqua limata, Stol. (Vol. Ill, PI. I, Figs. 12, 13), PI. IX, Figs. 4, 5. Pharella delicatula, Stol. (Vol. Ill, PI. 1., Fig. 14), Pl. IX, Fig. 8. Baroda elicita, Stol. (Vol. Ill, PI. IV, Fig. 16), PI. IX, Fig. 7. Cyprina cristata, Stol. (Vol. Ill, PI. IX, Fig. 1), PI. IX, Fig. 9. Hippagus aemilianus, Stol. (Vol. Ill, PI. XIV, Fig. 6), PI. IX, Fig. 6. Spondylus ariyalurensis, Stol. (Vol. Ill, PI. XXXIII, Fig. 5), PI. X, Fig. 2.» FRANZ KOSSMAT, 1897
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