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Swiss Journal of Geosciences
Fig. 7 | Swiss Journal of Geosciences

Fig. 7

From: First record of the brachiopod Erymnaria in the Chruteren Member (Euthal Formation) from a new Palaeogene site in the Brülisau Schuppenzone of northeastern Switzerland (Canton St. Gallen) with remarks on shell asymmetry

Fig. 7

Erymnaria sp. 1, several specimens in dorsal, lateral, ventral, and anterior view (dorsal valve up), showing the variability of the outline, the apical angle, the convexity, and the degree of frontal asymmetry. A (NMSG-F-14532, cast): uniplication shifted gently left, B (NMSG-F-14500): shifted markedly left, C (NMSG-F-14497): shifted gently right, D (NMSG-F-14498): shifted markedly right. E (NMSG-F-14499): almost median positioned, F (NMSG-F-14501): flat juvenile specimen with elongated beak region und rectimarginate anterior commissure, G (NMSG-F-14502): dorsal view of well-preserved posterior region with round, slightly rimmed foramen, and rounded area

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