Dasornis toliapica

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LOCALITIES: Ouled Abdoun Basin (Morocco): Sidi Daoui (including Krupp, PH 2, RP 13, TS and TZ 5 areas); Recette IV; southern Meraa El Arech (Lahou area); Sidi Chennane (M 1 S 2, M 8, M 11 and R 6 – R 7 areas). STRATIGRAPHIC DISTRIBUTION: Bed IIa, Thanetian, Upper Paleocene; intercalary beds II / I, basal Ypresian, lowermost Eocene; bed I, Ypresian, Lower Eocene. AMENDED DIAGNOSIS (from Harrison and Walker, 1976): Albatross-sized odontopterygiform with a wingspan of 2 to 3 m; differs from Dasornis emuinus in the following features: much smaller size; cranium, sutura frontoparietalis less pronounced, forming barely distinguishable groove; lamina parasphenoidalis caudorostrally longer; caudal extension of cotyla quadratica otici shorter and not twisted ventrally; foramen pneumaticum dorsale larger; laterosphenoid hollow square in shape, bounded medially by conspicuous prominentia lobi optici; tibiotarsus with shorter sulcus musculi fibularis. MEASUREMENTS: See tables 1 and 2.