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Longipteryx chaoyangensis
Taxonomy
Longipteryx chaoyangensis was named by Zhang et al. (2000). Its type specimen is IVPP V12325, a skeleton (nearly complete articulated skeleton with feather impressions), and it is a compression preserving soft parts. Its type locality is Qidaoquanzi, which is in an Aptian lacustrine siliciclastic in the Jiufotang Formation of China. It is the type species of Longipteryx.
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Longipteryx chaoyangensis Zhang et al. p. 2651 |
| 2001 | Longipteryx chaoyangensis Zhang et al. p. 945 |
| 2009 | Longipteryx chaoyangensis O'Connor et al. p. 188 |
| 2011 | Longipteryx chaoyangensis O'Connor et al. p. 464 |
| 2015 | Longipteryx chaoyangensis Wang et al. p. 566 |
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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.
†Longipteryx chaoyangensis Zhang et al. 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| X. Wang et al. 2015 | Rostrum approximately 60% of the skull length; dentition restricted to premaxilla and the rostral-most portion of dentary; large, recurved and labiolingually compressed teeth with crenulations developed along the caudal margins; middle cervical vertebrate heterocoelous; distal region of sternum with developed carina and lateral processes; coracoids with nearly straight lateral margin; second phalanx of minor digit reduced to a small triangle; pubis curved and with perpendicular pubic-foot; tarsometatarsus fused proximally, metatarsal IV surpasses the distal end of metatarsal III; ratio of tibiotarsus length to tarsometatarsus length approximate 1.6; trochleae of metatarsals I-IV almost on the same level; tibiotarsus shorter than humerus and ulna (modified from Zhang et al. 2001 & O’Connor et al. 2011). |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Benton 1983, Marsh 1875 | |||||