Pelophylax sp.

Villa, Andrea, Macaluso, Loredana & Mörs, Thomas, 2024, Miocene and Pliocene amphibians from Hambach (Germany): New evidence for a late Neogene refuge in northwestern Europe, Palaeontologia Electronica (a 3) 27 (1), pp. 1-56 : 32

Pelophylax sp.

Figure 22 A-D

Material. Hambach 6C: two ilia (IPB-HaH 2307, IPB-HaH 2387).

Description. These rather large and moderately preserved ilia have a well-developed and almost vertical dorsal tubercle, which is continued anteriorly by a high dorsal crest. The dorsal acetabular expansion is moderately short. The angle comprised between the latter and the tubercle approaches 90°. A shallow supraacetabular fossa is present. The medial surface of the ilial body is flat, without interiliac groove. The shape of the ilioischiatic juncture cannot be clearly described due to preservational reasons.

Remarks. Identification of these ilia as pertaining to green frogs is supported by ( Bailon, 1999): high dorsal crest; well-developed dorsal tubercle; and angle comprised between the tubercle and the dorsal acetabular expansion equals 90°. Specific identification of green frogs is possible only with a population-sized amount of ilia ( Blain et al., 2015).

Figures

FIGURE 22. Ranids from Hambach: right ilium (IPB-HaH 2307) of Pelophylax sp. in lateral (A) and medial (B) views; left ilium (IPB-HaH 2387) of Pelophylax sp. in lateral (C) and medial (D) views; left ilium (IPB-HaH 2321) of Rana sp. in lateral (E) and medial (F) views; sacral vertebra (IPB-HaR 2018) of Ranidae indet. in dorsal (G) and ventral (H) views; sacral vertebra (IPB-HaR 2019) of Ranidae indet. in dorsal (I) and ventral (J) views; left scapula (IPB-HaH 2323) of Ranidae indet. in ventral (K) and dorsal (L) views; left ilium (IPB-HaR 2087) of Ranidae indet. in lateral (M) and medial (N) views. Scale bars equal 1 mm. Abbreviations: dc, dorsal crest; dt, dorsal tubercle.