Fig. 5 in A new albanerpetontid amphibian from the Barremian (Early Cretaceous) Wessex Formation of the Isle of Wight, southern England

Fig. 5. Scanning electron micrographs of two premaxillae of the albanerpetontid amphibian Wesserpeton evansae gen. et sp. nov. illustrating intraspecific variations in morphology discussed in the text. Both specimens from bed 38 of the Barremian Wessex Formation at Yaverland (Figs. 1, 2). A. NHMUK PV R36524, right premaxilla in labial (A1) and lingual (A2) views; enlargement in lingual view (A3) to show replacement tooth crown at the base of the 2nd tooth locus; enlargement in lingual view (A) to show 4 the first three teeth, resorption pit at the base of the tooth shaft at the 2nd locus and location of the replacement tooth crown. B. NHMUK PV R36526, left premaxilla in labial (B1), lingual (B2) views; oblique dorsolingual (B3) and oblique laterolingual (B4) views, both to show openings and struts on the pars dorsalis; oblique ventrolingual view (B5), to show the ventral opening of the palatal foramen in the pars palatinum and the location of an unnamed foramen in the pars dorsalis.