Theriosynoecum ilhasensis Krömmelbein & Weber, 1971

Bate, Raymond H., Horne, David J., Horne, Sarah E., Douglas, Lyndsey, Miller, Giles & Lord, Alan R., 2022, Non-marine Ostracoda (Crustacea) of the Early Cretaceous ‘ Pre-Salt’ sediments of Brazil: An illustrated catalogue of the type specimens of Wicher, Krömmelbein, Krömmelbein & Weber, and Bate, Zootaxa 5098 (1), pp. 1-84 : 53

Theriosynoecum ilhasensis Krömmelbein & Weber, 1971

Fig. 13 , 3a–c

1971 Theriosynoecum ilhasensis n. sp. —Krömmelbein & Weber, p. 59, pl. 11, fig. 50.

Diagnosis: Carapace in lateral outline is an extended rectangle in its basic shape. Upper posterior carapace corner clearly protruding. Both sulci quite deep. Main sulcus more or less straight, extending down to the externally-visible central muscle field. Without distinct fine surface sculpture.

Holotype: Carapace, BfB 7827.

Paratypes: Not deposited.

Dimensions: Holotype, length 0.90mm, height 0.51mm, width 0.51mm.

Figures

FIGURE 3.

FIGURE 13. a = left lateral, b = dorsal, and c = right lateral views. 1a–c. Theriosynoecum isoplektum Krömmelbein & Weber, 1971. Holotype, C ♂?, BfB 7825, l 0.77mm, h 0.41mm, w 0.38mm. 2a–c. Theriosynoecum isoplektum Krömmelbein & Weber, 1971. Paratype, C ♀?, BfB 7826, l 0.72mm, h 0.38mm, w 0.37mm. 3a–c. Theriosynoecum ilhasensis Krömmelbein & Weber, 1971. Holotype, C, BfB 7827, l 0.90mm, h 0.51mm, w 0.51mm. 4a–c. Theriosynoecum trigonalis Krömmelbein & Weber, 1971. Holotype, C, BfB 7828, l 0.79mm, w 0.65mm. 5a–c. Theriosynoecum ventralatum Krömmelbein & Weber, 1971. Holotype, C ♀, BfB 7829, l 0.90mm, h 0.56mm, w 0.68mm. 6a–c. Theriosynoecum ventralatum Krömmelbein & Weber, 1971. Paratype, C ♂, BfB 7830, l 0.90mm, h 0.55mm, w 0.55mm. 7a–c. Theriosynoecum quadrinodosum Krömmelbein & Weber, 1971. Holotype, C ♀, BfB 7831, l 0.70mm, h 0.40mm, w 0.37mm. 8a–c. Theriosynoecum quadrinodosum Krömmelbein & Weber, 1971. Paratype, C ♂, BfB 7832, l 0.70mm, h 0.39mm, w 0.31mm. 9a–c. Theriosynoecum miritiensis Krömmelbein & Weber, 1971. Holotype, C ♀, BfB 7834, l 0.80mm. 10a–c. Theriosynoecum miritiensis Krömmelbein & Weber, 1971. Paratype, C ♂, BfB 7835, l 0.78mm, h 0.48mm, w 0.43mm. 11a–c. Theriosynoecum wicheri Krömmelbein & Weber, 1971. Holotype, C ♂, BfB 8022, l 0.76mm, h 0.42mm, w 0.36mm. 12a–c. Theriosynoecum wicheri Krömmelbein & Weber, 1971. Paratype, C ♀, BfB 8023, l 0.76mm, h 0.43mm, w 0.48mm.