Cypridea tucanoensis Krömmelbein, 1965

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 : 30-31

Cypridea tucanoensis Krömmelbein, 1965

Fig. 7 , 1a–c

1965a Cypridea tucanoensis n. sp. —Krömmelbein, p. 180–181, pl. 11, fig. 2.

Diagnosis: A Cypridea species from the group opifera Krömmelbein 1962 with the following peculiarities: carapace more or less medium-sized. Dorsum of the left valve weakly raised up like a crest. Ventral margin of the left valve strongly convex, clearly overlapping the right valve. Valve end of the left valve is positioned concavely against the ventral margin [of the right valve?] and extending like a broad tongue. Both valves with a flat node-like swelling in a more or less postero/dorso-median position. Carapace surface with irregular pore dimples, particularly in the central valve area.

Holotype: Carapace, SMF Xe 5338.

Paratypes: 2 carapaces, SMF Xe 5339 .

Dimensions: Holotype, length 0.94mm, height 0.64mm.

Figures

FIGURE 1. a = left lateral, b = dorsal, and c = right lateral views. 1a–c. Cytheridea bononiensis (Jones) inflata Wolburg. C, T.-K.-Nr. 3182, l 0.83mm, h 0.25mm, w 0.49mm. 2a–c. Cypridea obovata obovata Swain, 1946. C, T.-K.-Nr. 3168, l 1.41mm, h 0.58mm, w 0.88mm. 3a–c. Cypridea obovata (Swain) rhomboidalis Wicher, 1959. Holotype, C, T.-K.-Nr. 3169, l 2.34mm, h 0.86mm, w 1.14mm. 4a–c. Cypridea obovata (Swain) quadrirugosa Wicher, 1959. Holotype, C, T.-K.-Nr. 3170, l 1.56mm, h 0.63mm, w 0.88mm. 5a–c. Cypridea quadrilateralis Swain bibullata Wicher, 1959. Holotype, C, T.-K.-Nr. 3171, l 0.99mm, h 0.45mm, w 0.53mm. 6a–c. Cypridea quadrilateralis Swain inflata Wicher, 1959. Holotype, C, T.-K.-Nr. 3172, l 1.36mm, h 0.66mm, w 0.76mm. 7a–c. Cypridea kegeli Wicher, 1959. Holotype, C, T.-K.-Nr. 3175, l 0.85mm, h 0.39mm, w 0.55mm. 8a–c. Cypridea kegeli bisculpturata Moos in Wicher, 1959. Holotype, C, T.-K.-Nr. 3176, l 0.63mm, h 0.36mm, w 0.25mm. 9a–c. Cypridea nitidula Peck, 1941 Moos in Wicher, 1959. C, T.-K.-Nr. 3177, l 0.97mm, h 0.58mm, w 0.44mm. 10a–c. Cypridea brevicornis Peck, 1941 Moos in Wicher, 1959. C, T.-K.-Nr. 3178, l 1.05mm, h 0.64mm, w 0.43mm. 11a–c. Cypridea acuta Moos in Wicher, 1959. Holotype, C, T.-K.-Nr. 3179, l c. 1.40mm, h 0.72mm, w c. 0.57mm. 12a–c. Cypridea (Pseudocypridina) piedmonti (Roth, 1933) Moos in Wicher, 1959. C, T.-K.-Nr. 3180, l 0.70mm, h 0.12mm, w 0.45mm.

FIGURE 7. a = left lateral, b = dorsal, and c = right lateral views. 1a–c. Cypridea tucanoensis Krömmelbein, 1965. Holotype, C, SMF Xe 5338, l 0.94mm, h 0.64mm. 2a–c. Cypridea maior Krömmelbein, 1965. Holotype, C, SMF Xe 5340, l 1.01mm, h 0.68mm. 3a–c. Cypridea subtilis Krömmelbein, 1965. Holotype, C, SMF Xe 5342, l 0.89mm, h 0.58mm. 4a–c. Cypridea suspecta Krömmelbein, 1965. Holotype, C, SMF Xe 5344, l 0.63mm, h 0.39mm. 5a–c. Cypridea (Morininoides) grekoffi Krömmelbein, 1965. Holotype, C, SMF Xe 5346, l 1.29mm, h 0.76mm. 6a–c. Reconcavona imitatrix Krömmelbein, 1965. Holotype, C, SMF Xe 5348, l 0.83mm, h 0.39mm. 7a–c. Candona? pitangaensis Krömmelbein, 1965. Holotype, C, SMF Xe 5350, l 0.94mm, h 0.58mm. 8a–c. Clinocypris? weileri Krömmelbein, 1965. Holotype, C, SMF Xe 5352, l 0.77mm. 9a–c. Tucanocypris camposi Krömmelbein, 1965. Holotype, C, SMF Xe 5354, l 0.94mm, h 0.50mm. 10a–c. Tucanocypris apiculata Krömmelbein, 1965. Holotype, C, SMF Xe 5358, l 0.90mm, h 0.46mm. 11a–c. Petrobrasia marfinensis (Krömmelbein, 1962). ‘Hypotype’, C, SMF Xe 5362, l 0.75mm, h 0.43mm, w 0.30mm. 12a–c. Petrobrasia signum Krömmelbein, 1965. Holotype, C, SMF Xe 5363, l 0.81mm, h 0.47mm.