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Xiangornis shenmi
Taxonomy
Xiangornis shenmi was named by Hu et al. (2012). Its type specimen is PMOL-AB00245 (Paleontological Museum of Liaoning, China), a set of postcrania (partial postcranial skeleton including nearly complete furcula, left coracoid, left carpometacarpus, and first phalanx of the left alular digit; partial sternum), and it is a 3D body fossil. Its type locality is Dapingfang, which is in an Aptian lacustrine mudstone in the Jiufotang Formation of China. It is the type species of Xiangornis.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Xiangornis shenmi Hu et al. pp. 639-642 figs. 1-2 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Xiangornis shenmi Hu et al. 2012
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. -Y. Hu et al. 2012 | Xiangornis can be referred to Enantiornithes based on the following synapomorphies: ‘Y’-shaped furcula with elongated hypocleidium; coracoid with convex lateral margin and concave dorsal fossa; and minor metacarpal extending distally beyond major metacarpal. Differs from other enantiornithines in having the following unique combination of features: large size; coracoid with medially curved acrocoracoid process; proximally convex humeral head; carpometacarpus longer than coracoid and completely fused both proximally and distally; short alular metacarpal (about one-sixth of the length of major metacarpal) completely fused to major metacarpal; large flange-like extensor process; and intermetacarpal space positioned significantly distal to the alular metacarpal. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Kiessling 2004, Benton 1983 | |||||