Figure 3. A in A taxonomic reassessment of Ichthyosaurus communis and I. intermedius and a revised diagnosis for the genus

Figure 3. A, original figure by Conybeare (1822, pl. 16, fig. 8) of a specimen referred to as Ichthyosaurus communis. B, holotype specimen of I. breviceps (NHMUK PV OR43006) with lines indicating key sutures of the skull; the skull has been reversed to show the same orientation; note the similar extent of the subnarial process of the premaxilla and the reduced anterior process of the lacrimal; the medial portion of the lacrimal is damaged, and the dorsal extent is estimated. Abbreviations: en, external naris; la, lacrimal; mx, maxilla; na, nasal; pmx, premaxilla. Scale: A, no size information in the original publication, B, specimen behind glass and inaccessible, so scale bars cannot be provided.