Pecten tietzei (Fuchs, 1879)
FUCHS, T. 1879. Über die von Dr. Tietze aus Persien mitgebrachten Tertiärversteinerungen. Denkschriften der kaiserlichen Akademie der Wissenschaften [mathematisch-naturwissenschaftliche Classe], 41 (2): 99-108, pls. 1-6 [p. 106, pl. 2, figs. 5, 6]
1879 Pecten (Janira) tietzii Fuchs 1879
T. Fuchs, 1879, plate 2.
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«Ein sehr ausgezeichnete Art, welche in der äusseren Form ganz der Janira fallax Michel, und deperdita Michel, aus den nord-italienischen Gomberto und Sangonini-Schichten entspricht, sich jedoch von beiden sehr leicht und sicher durch die runden und vollkommen glatten Rippen unterscheidet, überdies ist sie beinahe doppelt so gross.
Diese Art scheint am Siokuh ausserordentlich häufig zu sein, doch liegen mir merkwürdiger Weise ausschliesslich Unterklappen vor; sie findet sich auch im unteren Kalkstein von Malta.» THEODOR FUCHS, 1879
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«Shell very inequivalve, usually inequilateral.
Right valve deeply convex with strongly incurved umbo; furnished with from nineteen to twenty-one prominent, smooth, rounded ribs separated by deep and narrow furrows. Lines of growth hardly visible except near the ventral margin. Ears subequal, ornamented with rather strong radial costae. Left valve flat, or slightly concave beneath the umbo; with about sixteen prominent subangular ribs separated by somewhat broader interspaces in which the fine concentric growth-lines are well marked. Remarks. This species, easily distinguished by its strong curvature and numerous closely-set ribs, was first described from Persia by Fuchs, and appears to be particularly abundant in the upper part of the Lower Miocene of Central Persia, where it is associated with other, larger, and more broadly-ribbed forms, probably referable to P. josslingi Smith.» DOUGLAS, J. A. 1928. Contributions to Persian Palaeontology, III. 19 p., pls. 8-15. The Anglo-Persian Oil Company Lts. Printed at The Holywell Press, Oxford. [p. 15]
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Pecten tietzei Fuchs; J. A. Douglas, 1928, Contributions to Persian Palaeontology, III, plate 13, figures 7-9; plate 14, figure 5.
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