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Cathayornis
Taxonomy
Cathayornis was named by Zhou et al. (1992). It is the type genus of Cathayornithidae.
It was synonymized subjectively with Sinornis by Chiappe (2002).
It was assigned to Enantiornithes by Chiappe and Calvo (1994), Norell and Clarke (2001) and Clarke et al. (2005); to Cathayornithidae by Zhou et al. (1992), Zhou et al. (1992), Hou (1997), Li et al. (2008) and Zhou and Wang (2010); and to Enantiornithes by Kurochkin et al. (2013), O'Connor and Zelenkov (2013), Wang et al. (2014), Zhang et al. (2014), Wang et al. (2014), O'Connor et al. (2014) and Wang et al. (2015).
It was synonymized subjectively with Sinornis by Chiappe (2002).
It was assigned to Enantiornithes by Chiappe and Calvo (1994), Norell and Clarke (2001) and Clarke et al. (2005); to Cathayornithidae by Zhou et al. (1992), Zhou et al. (1992), Hou (1997), Li et al. (2008) and Zhou and Wang (2010); and to Enantiornithes by Kurochkin et al. (2013), O'Connor and Zelenkov (2013), Wang et al. (2014), Zhang et al. (2014), Wang et al. (2014), O'Connor et al. (2014) and Wang et al. (2015).
Synonymy list
| Year | Name and author |
|---|---|
| 1992 | Cathayornis Zhou et al. p. 435 |
| 1994 | Cathayornis Chiappe and Calvo p. 230 |
| 1997 | Cathayornis Hou p. 60 |
| 2001 | Cathayornis Norell and Clarke p. 183 |
| 2005 | Cathayornis Clarke et al. p. 307 |
| 2008 | Cathayornis Li et al. p. 1116 |
| 2010 | Cathayornis Zhou and Wang |
| 2013 | Cathayornis Kurochkin et al. |
| 2013 | Cathayornis O'Connor and Zelenkov |
| 2014 | Cathayornis O'Connor et al. |
| 2014 | Cathayornis Wang et al. |
| 2014 | Cathayornis Wang et al. |
| 2014 | Cathayornis Zhang et al. |
| 2015 | Cathayornis Wang et al. |
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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.
G. †Cathayornis Zhou et al. 1992
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†Cathayornis yandica Zhou et al. 1992
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Invalid names: Cuspirostrisornis houi Hou 1997 [synonym], Largirostrornis sexdentornis Hou 1997 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. H. Hou 1997 | A small genus, skull is small with a minimum amount of fusion, rostrum is relatively long and low, foramen magnum is positioned ventrally, and a relatively full dentition is present on premaxilla and dentary. Scapula is straight and slender with an oblique acromion process. Coracoid has an expansive contact with the sternum, and proximal end becomes narrow. Ventral surface of the sternum is projected, carina is low, and lateral processes are well developed with termini that are expanded as oblique triangles. Humerus and ulna are equivalent in length, humeral head is small or undeveloped, medial and lateral tuberosities are distinct, and there is a small pneumatocoel. Ulna is robust, slightly curved, and possesses a small olecranon process. Radius is slender with an expanded proximal end. Proximal carpals are fused and there is a carpal trochlea. Reduced unguals are present on the first and second digits. Pelvic girdle is unfused. Fibula is long, conical, and is not fused with the tibiotarsus. Pes talons are not extremely curved. Pygostyle is present |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||