Calonectris Mathews & Iredale, 1915

Mourer-Chauviré, Cécile & Geraads, Denis, 2010, The Upper Pliocene Avifauna of Ahl al Oughlam, Morocco. Systematics and Biogeography, Records of the Australian Museum 62 (1), pp. 157-184 : 161

Genus Calonectris Mathews & Iredale, 1915

and the tip of the procoracoid are not preserved).

Coracoid: Total length measured on the medial side, 60.2; width from the medial side of Facies scapularis to the lateral side of Facies articularis humeralis, 19.0; depth from the dorsal side of Facies scapularis to the ventral end of the acrocoracoid, ca. 30.1; width of shaft in the middle, 14.6; depth of shaft at the same level, 10.2; greatest depth of sternal facet on the medial side, 14.7.

Scapula: Proximal width from acromion to Facies articularis humeralis, 18.0.

The specimen no. AaO-820, which includes a distal humerus, a proximal ulna, and a proximal radius, all articulated, shows two sesamoids that are situated just distally compared to the place where the head of the radius comes to rest against the dorsal cotyla of the ulna. Examination of Recent skeletons of P. albatrus and P. nigripes from the USNM collection shows the occurrence, on some skeletons,