Theriosynoecum trigonalis Krömmelbein & Weber, 1971

Fig. 13, 4a–c

1971 Theriosynoecum trigonalis n. sp. —Krömmelbein & Weber, p. 60–61, pl. 11, fig. 51.

Diagnosis: In lateral view a very stocky species of Theriosynoecum, in dorsal view decidedly triangular. Posterior part of carapace projecting high above the dorsal margin, more or less tapering to a point. Main sulcus very long, convexly arched. Surface sculpture a coarse network.

Holotype: Carapace, BfB 7828.

Paratypes: Not deposited.

Dimensions: Holotype, length 0.79mm, width 0.65mm.