Nesodactylus hesperius (Colbert 1969 ) AMNH FR 2000 Oxfordian, Late Jurassic ~158 mya, was considered a novel genus, but here it is derived from a sister to the C5 specimen of Campylognathoides and phylogenetically preceded the C3 specimen of Campylognathoides. That indicates Nesodactylus was a mislabeled specimen of Campylognathoides. It was much less complete than the other specimens.
A quadrate is all that is known of the skull.
The cervicals varied in size suggesting reduction cranially. The tail was gracile and included extended hemals and zygopophyses.
Transversely the sternal complex was highly curved and twice as long as previously figured. The deltopectoral crest was truncated and broad-based but also slightly waisted. The fingers were larger and ungual III was strongly hooked.
The “prepubis” identified by Colbert (1969) was actually the ischium. The perforated prepubis was overlooked. The pedal digits were similar in length to the metatarsals, which spread distally. Pedal 5.1 did not extend beyond metatarsal IV. |