Dimorphodon

Dimorphodon macronyx was a small but striking pterosaur from the Early Jurassic coastal environments of what is now southern England. Its most distinctive feature was its disproportionately large, deep skull, which superficially resembled a puffin's head, though the two are not related. The skull contained two distinct tooth types: large fangs at the front for grasping prey and smaller teeth behind for processing food—an unusual arrangement among pterosaurs that inspired its scientific name.

With a wingspan of approximately 1.4 meters, Dimorphodon was a capable flier, though its large head and relatively short wings suggest it may have been less maneuverable than later pterosaurs. Its long tail, tipped with a diamond-shaped vane, likely provided stability during flight. On the ground, Dimorphodon walked on all fours, with its wings folded and its strong hindlimbs supporting an upright posture. Analysis of its limb proportions indicates it was an agile terrestrial walker, possibly foraging on shorelines and rocky outcrops.

The first fossils were discovered by Mary Anning in 1828 along the Dorset coast at Lyme Regis, making Dimorphodon one of the earliest pterosaurs known to science. Richard Owen formally named it in 1859. Multiple specimens have since been recovered from the Blue Lias Formation, providing excellent insight into early pterosaur anatomy and diversity. This creature helps paleontologists understand the evolutionary radiation of pterosaurs during the Jurassic Period.