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PTERORHYNCHUS
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Genus: Pterorhynchus Czerkas & Ji, 2002
Etymology: "wing snout"
Type species: P. wellnhoferi
Other Species: none
Diagnosis: See type species.
Classification: Breviquartossa cladi innom.
Holotype: CAGS02-IG-gausa-2/DM 608 — Nearly complete and mostly articulated specimen with impressions of a wing and head crest. (Czerkas & Ji, 2002)
Referred Specimens: none
Time: ?Middle to Late Jurassic
Horizon: Haifangou Formation
Location: Dafugou Village, Chifeng, Inner Mongolia, China
Skull length: 11.8 cm
Total length: 67.5 cm
Wingspan: ~85 cm
Mass: ?
Diagnosis: The sagittal headcrest distinguishes Pterorhynchus wellnhoferi from all other known rhamphorhynchoids. The crest is represented by both a small ossified part and a soft tissue part that is much larger. The low ossified ridge has vertical striae and is located beneath the leading edge of the remaining crest which extends well above and across the posterior two-thirds of the skull. This much larger part appears to have been corneous in life presumably made of keratinous material. The length of the tail is about equal to the length of a wing, The tail mambrane appears to be long and low extending along more than the distal two-thirds of the tail. (Czerkas & Ji, 2002)
Comments:
References:
Czerkas S. A. and Ji, Q., 2002, Anew rhamphorhynchoid with a headcrest and complex integumentary structures. In S. J. Czerkas (ed.), Feathered Dinosaurs and the origin of flight. The Dinosaur Museum Journal vol. 1 The Dinosaur Museum of Blanding, Utah. p. 15-41.