DENDRORHYNCHOIDES

Genus: Dendrorhynchoides Ji S., Ji Q. & Padian 1999

Etymology: "tree of Rhamphorhynchus from"

Synonyms: Dendrorhynchus Ji S. & Ji Q., 1998/Yin & Zeng, 1995 "tree of Rhamphorhynchus"

Type species: D. curvidentatus

Other Species: none

Diagnosis: See type species.

Classification: Anurognathidae


Species: D. curvidentatus (Ji S. & Ji Q.,1998) Ji S., Ji Q. & Padian 1999

Etymology: "curved-toothed"

Synonyms: Dendrorhynchus curvidentatus Ji S. & Ji Q., 1998

Holotype: GMV 2128 — A relatively complete skeleton. (Ji S. & Ji Q., 1998)

Referred Specimens: none

Time: Tithonian, Late Jurassic

Horizon: Chaomidianzi Formation

Location: Sihetun, Beipiao City, Chaoyang, Liaoning Province, China

Skull length: ~25 mm

Total length: 11 cm

Wingspan: 40 cm

Mass: ?

Diagnosis: An extremely small species of rhamphorhynchid with a wing span of only about 40 cm. Tooth crowns are relatively high, acute, and slightly recurved. Cervical vertebrae are short and thick. Tail is long with distinctly elongated neural spines and haemal arches on the medial and posterior caudal vertebrae. Wing metacarpal is robust with slight posterior curvature and a length only one-quarter that of the radius. Wing finger is slender and long; the first phalanx is distinctly longer than the second phalanx, and the second phalanx is only slightly longer than the radius. Tibia is shorter than the humerus. Fibula is conspicuously present but is slender and weak, and half as long as the tibia. Metatarsals I-IV are nearly equivalent in length but metatarsal V is short and straight. The fifth pedal digit has two extremely well developed phalanges that are two-thirds the length of the metatarsals, and the ungual is curved with an acutely tapered end. (Ji S. & Ji Q., 1998)

Comments:

References:
Ji S.-A. and Ji Q., 1998,  A new fossil pterosaur (Rhamphorhynchoidea) from Liaoning. Jiangsu Geology 22(4): 199-206.

Ji, S.-A., Ji, Q. & Padian, K. 1999 Biostratigraphy of new pterosaurs from China. Nature 398, 573–574.

Unwin, D. M., Lü, J. & Bakhurina, N. N., 2000, On the systematic and stratigraphic significance of pterosaurs from the Lower Cretaceous Yixian Formation (Jehol Group) of Liaoning, China. Mitt. Mus. Naturk. Berlin Geowiss. Reihe 3, 181–206

Dalla Vecchia F. M., 2002, Observations on the non-pterodactyloid pterosaur Jeholopterus ningchengensis from the early Cretaceous of Northeastern China.  Natura Nascosta 24(2002) pp.8-26.


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