Rana undetermined

Rana sp. Figure 22 E-F Material. Hambach 6C: one ilium (IPB-HaH 2321). Description. IPB-HaH 2321 is moderately preserved. Laterally, a wide and subcircular acetabular fossa is visible. Dorsal to it, there is a shallow supraacetabular fossa. The dorsal tubercle is moderately distinct, low, and anteriorly inclined. Its lateral surface is smooth. The dorsal crest is present, but almost completely broken off. Both dorsal and ventral acetabular expansions are preserved and well distinct, with the latter that is more developed than the former. The dorsal acetabular expansion and the dorsal tubercle define an obtuse angle. The flat medial surface has neither an interiliac tubercle nor a groove. The ilioischiatic juncture is high and narrow. Remarks. The following combination of features allows referral of this ilium to a brown frog (Gleed-Owen, 1998; Bailon, 1999): presence of a dorsal crest; poorly distinct dorsal tubercle; angle between tubercle and dorsal acetabular expansion obtuse; and ilioischiatic juncture high and narrow.