Cypridea miritiensis 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 : 41

Cypridea miritiensis Krömmelbein & Weber, 1971

Fig. 9 , 7a–c

1971 Cypridea miritiensis n. sp. —Krömmelbein & Weber, p. 12–13, pl. 1, fig. 2.

Diagnosis: A medium-sized Cypridea species (carapace length on average about 1mm) with a trapezoid rounded outline. Maximum carapace height at extreme anterior on the cardinal angle. Dorsal margin more or less straight, clearly falling away towards the posterior. The rostrum is broad, mostly rounded off, only protruding a little. The rostral sulcus is narrow but distinct, extending up a long way and parallel to the anterior margin. Sculpture: coarse pore dimples on the entire carapace outer surface; large pustules (flattened out, knob-like spines) irregularly distributed, dense on the anterior valve surface area (in the region of the eye) and also on the posterior and lower valve surface, leaving free the area of the flat, sulcus-like valve indentation from the dorsal margin to above the middle of the valve.

Holotype: Carapace, BfB 7768.

Paratypes: 3 carapaces, BfB 7769.

Dimensions: Holotype, length 0.97mm, height 0.60mm, width 0.47mm.

Figures

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.

FIGURE 9. a = left lateral, b = dorsal, and c = right lateral views. 1a–c. Petrobrasia congolensis Krömmelbein, 1965. Holotype, C, SMF Xe 5384, l 0.80mm, h 0.41mm, w 0.25mm. 2a–c. Petrobrasia zairensis Krömmelbein, 1965. Holotype, C, SMF Xe 5387, l 0.90mm, h 0.47mm, w 0.34mm. 3a–c. Hourcqia africana Krömmelbein, 1965. Holotype, C, SMF Xe 5389, l 0.86mm, h 0.57mm, w 0.47mm. 4a–c. ”Metacypris” papillaris Krömmelbein, 1965. Holotype, Left Valve, SMF Xe 5395, l 0.92mm. 5a–c. “Metacypris“ inops Krömmelbein, 1965. Holotype, C, SMF Xe 5398, l about 0.73mm, h about 0.41mm, w 0.40mm. 6a–c. Cypridea indiennensis densipunctata Krömmelbein & Weber, 1971. Holotype, C, BfB 7767, l 1.25mm, h 0.80mm, w 0.58mm. 7a–c. Cypridea miritiensis Krömmelbein & Weber, 1971. Holotype, C, BfB 7768, l 0.97mm, h 0.60mm, w 0.47mm. 8a–c. Cypridea infima Krömmelbein & Weber, 1971. Holotype, C, BfB 7770, l 0.60mm, h 0.39mm, w 0.36mm. 9a–c. Cypridea conjugata Krömmelbein & Weber, 1971. Holotype, Left Valve, BfB 7772, l 1.03mm, h 0.67mm. 10a–c. Cypridea ellipsoidea Krömmelbein & Weber, 1971. Holotype, C, BfB 7774, l 0.88mm, h 0.54mm, w 0.50mm. 11a–c. Cypridea altilis Krömmelbein & Weber, 1971. Holotype, C, BfB 7776, l 1.85mm, h 1.15mm, w 0.88mm. 12a–c. Cypridea minuscula Krömmelbein & Weber, 1971. Holotype, C, BfB 7777, l 0.50mm, h 0.34mm.