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holotype. Almost axial section. Abbreviations: ch: chamber; p: pores; up: umbilical plate; upg: umbilical plug.
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Topotypes from north of Tinerhir, section SA 11 in Herbig (1991), southern Morocco, Paleocene. Axial sections.
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From Hottinger (2014, fig. 3.1): Selection of original illustrations by von Hillebrandt at standard enlargements. (A–C) Drawings illustrating the umbilical, peripheral and spiral views. (D–E) Oblique-centered sections in transparent light, missing the umbilical plug in the coiling axis (From Wasserfall Graben, Lattengebirge, Oberbayern, Southern Germany; Lower Paleocene)
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External, ventral view of shell face showing unfeathered chamber sutures and heavy, free standing umbilical plug. From Couiza in the Aude Valley, Aquitaine, Southern France
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Axial sections. From Couiza, Aquitaine, SW France, lower Ilerdian (SBZ 6). up: umbilical plate
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From Boix et al. (2009). Almost axial sections showing the apical thickening of the lamellar-perforate shell and the angular, distinctly keeled periphery. E: embryo; f: foramen; k: keel; p: pores; upg: umbilical plug
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Holotype, axial section. upg: umbilical plug; fo: folia.
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Holotype in dorsal (4a), ventral (4b) and lateral (4c) views
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Holotype. a, ventral view; b, dorsal view; c, edge view
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Holotype. dorsal (8a), ventral (8b) and lateral (8c) views.
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Holotype. dorsal (14a), umbilcal (14b) and lateral (14c) views.
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Holotype in dorsal (9a), ventral (9b) and lateral (9c) views
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Holotype in dorsal (15a), ventral (15b) and lateral (15c) views
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Holotype in dorsal (6a), ventral and lateral (6c) views
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Hypotype in dorsal (13a), ventral (13b) and laternal (13c) views
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Holotype in dorsal (5a), ventral (5b) and lateral (5c) views
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Holotype in dorsal (1c), ventral (1b) and lateral (1c) views
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Holotype in dorsal (12a), ventral (12b) and lateral (12c) views
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Holotyep. A, dorsal view; B, apertural view, C, ventral view.
