Jianchangnathus Temporal range:
Middle Jurassic,
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Holotype, Paleozoological Museum of China | |
Scientific classification
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Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Order: | † Pterosauria |
Family: | † Rhamphorhynchidae |
Subfamily: | † Scaphognathinae |
Genus: | †
Jianchangnathus Cheng et al., 2012 |
Species: | †J. robustus
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Binomial name | |
†Jianchangnathus robustus Cheng et al, 2012
|
Jianchangnathus is an extinct genus of basal pterosaur from the Middle Jurassic Tiaojishan Formation of northeastern China. [1]
Jianchangnathus was first described and named by Cheng Xin, Wang Xiaolin, Jiang Shunxing and Alexander W.A. Kellner in 2012 and the type species is Jianchangnathus robustus. The generic name combines a reference to Jianchang County with a Greek γνάθος, gnathos, "jaw". The specific name means "robust" in Latin. [1]
Jianchangnathus was initially described based on a single fossil skeleton, holotype IVPP V16866, recovered near Linglongta, in Jianchang County. The second specimen, PMOL-AP00028, consisting of a partially articulated skull and fragments of postcranial skeleton of a subadult individual, was described in 2014. [2]
Autapomorphies of Jiangchangnathus include: a convex top margin of the lower jaw; a large front branch of the jugal; and the first three pairs of teeth of the lower jaws pointing strongly forwards. Its describers found it to share several features with Scaphognathus, including a high front end of the lower jaws, a pear-shaped lower temporal fenestra with the broad end below and teeth in the maxilla of the upper jaw that have a space equal to that of three toothsockets between them. [1] Additionally, undescribed fossils of a pterosaur referred to Jianchangnathus suggest that the color of its pycnofibers was brown. [3]
Jianchangnathus was assigned by the describers to the Scaphognathidae by the describing authors, [1] which was corroborated by later phylogenetic analyses which included this taxon. [4] [5]
Jianchangnathus Temporal range:
Middle Jurassic,
| |
---|---|
![]() | |
Holotype, Paleozoological Museum of China | |
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Order: | † Pterosauria |
Family: | † Rhamphorhynchidae |
Subfamily: | † Scaphognathinae |
Genus: | †
Jianchangnathus Cheng et al., 2012 |
Species: | †J. robustus
|
Binomial name | |
†Jianchangnathus robustus Cheng et al, 2012
|
Jianchangnathus is an extinct genus of basal pterosaur from the Middle Jurassic Tiaojishan Formation of northeastern China. [1]
Jianchangnathus was first described and named by Cheng Xin, Wang Xiaolin, Jiang Shunxing and Alexander W.A. Kellner in 2012 and the type species is Jianchangnathus robustus. The generic name combines a reference to Jianchang County with a Greek γνάθος, gnathos, "jaw". The specific name means "robust" in Latin. [1]
Jianchangnathus was initially described based on a single fossil skeleton, holotype IVPP V16866, recovered near Linglongta, in Jianchang County. The second specimen, PMOL-AP00028, consisting of a partially articulated skull and fragments of postcranial skeleton of a subadult individual, was described in 2014. [2]
Autapomorphies of Jiangchangnathus include: a convex top margin of the lower jaw; a large front branch of the jugal; and the first three pairs of teeth of the lower jaws pointing strongly forwards. Its describers found it to share several features with Scaphognathus, including a high front end of the lower jaws, a pear-shaped lower temporal fenestra with the broad end below and teeth in the maxilla of the upper jaw that have a space equal to that of three toothsockets between them. [1] Additionally, undescribed fossils of a pterosaur referred to Jianchangnathus suggest that the color of its pycnofibers was brown. [3]
Jianchangnathus was assigned by the describers to the Scaphognathidae by the describing authors, [1] which was corroborated by later phylogenetic analyses which included this taxon. [4] [5]