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Eoconfuciusornis zhengi
Taxonomy
Eoconfuciusornis zhengi was named by Zhang et al. (2008). Its type specimen is IVPP V11977, a skeleton (nearly complete skeleton including feather impressions), and it is a compression preserving soft parts. Its type locality is Sichakou, which is in a Hauterivian/Barremian lacustrine siliciclastic in the Dabeigou Formation of China. It is the type species of Eoconfuciusornis.
Synonymy list
Year | Name and author |
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2008 | Eoconfuciusornis zhengi Zhang et al. p. 626 |
2010 | Eoconfuciusornis zhengi Li et al. p. 88 |
2019 | Eoconfuciusornis zhengi Wang et al. p. 22 |
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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.
†Eoconfuciusornis zhengi Zhang et al. 2008
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Diagnosis
Reference | Diagnosis | |
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M. Wang et al. 2019 | A small confuciusornithiform distinguished by the following unique combination of characters: rostrum sharply pointed as in C. dui (rather than stout as in C. sanctus or ventrally curved as in Ch. hengdaoziensis); dorsal process of maxilla craniocaudally compressed (as opposed to triangular in C. dui, and halberd-shaped in C. sanctus); surangular bearing a ventral process (absent in C. dui); thoracic vertebrae without lateral excavations; humeral deltopectoral crest imperforate (fenestrated in C. sanctus and C. dui; however, this feature is possibly subject to ontogenetic variation, as discussed below); and proximal phalanx shorter than intermediate phalanx in major digit (intermediate phalanx shorter in Ch. hengdaoziensis). |
Measurements
No measurements are available
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Source: subo = suborder, o = order | |||||
References: Benton 1983, Marsh 1875 |
Age range: base of the Hauterivian to the top of the Barremian or 132.60000 to 121.40000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Hauterivian - Barremian | China (Hebei) | Eoconfuciusornis zhengi (type locality: 85261) |