Figure 1 in Body size estimation and evolution in metriorhynchid crocodylomorphs: implications for species diversification and niche partitioning

Figure 1. Comparative view of four fossil crocodylomorphs, showing the skeletal variation of this clade: A, Pristichampsus geiseltalensis GM 8001, an unguligrade terrestrial eusuchian; B, Alligatorellus beaumonti BSPG 1937-I-26, a small-bodied semi-aquatic atoposaurid; C, Crocodilaemus robustus NHM 40344 (cast of holotype), a heavily armoured semi-aquatic pholidosaurid; and D, Cricosaurus suevicus SMNS 9808, a pelagic metriorhynchid. Note the large size of the head of Cricosaurus relative to its body length, its hypocercal tail, reduction of pectoral and pelvic girdles, hydrofoil-like forelimbs, and lack of osteoderms. Scale bars = 100 mm.