AnurognathidaeBreviquartossaCaelidraconesEarly TithonianLate JurassicMacronychopteraMonofenestrataNorth AmericaNovialoideaPterodactyliformesPterodactylomorphaPterosauriaZambellisauria

Mesadactylus ornithosphyos

Pterosaur: Mesadactylus ornithosphyos

Meters Feet
Wingspan*: 1.80 m 5.9 ft
*The largest known specimen

ESR: 1.5 / 4 (estimated size reliability)


Other

Material: Synsacrum, referred many bones (problematic).
References: Jensen, J. A., and Padian, K. (1989) Small pterosaurs and dinosaurs from the Uncompahgre fauna (Brushy Basin Member, Morrison Formation: ?Tithonian), late Jurassic, western Colorado.

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