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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Shiriyanetta
Taxonomy
Shiriyanetta was named by Watanabe and Matsuoka (2015).
It was assigned to Mergini by Watanabe and Matsuoka (2015).
It was assigned to Mergini by Watanabe and Matsuoka (2015).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Shiriyanetta Watanabe and Matsuoka pp. e994745-4 figs. Figs. 2-7 |
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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. †Shiriyanetta Watanabe and Matsuoka 2015
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†Shiriyanetta hasegawai Watanabe and Matsuoka 2015
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Watanabe and H. Matsuoka 2015 | Large-sized duck with a relatively reduced pecto-
ral skeleton that is characterized by the following combination of osteological features: sternum—carina sterni reduced, with blunt margo ventralis carinae, sulcus carinae developed as sub- triangular fossa on margo cranialis sterni; humerus—crista delto- pectoralis concave dorsally, cranial margin less angular, extending distally, and ending in a steep angle at one-third of shaft length, fossa m. brachialis well marked with a ridge on the ventral margin, epicondylus ventralis reduced; carpometacar- pus—margo cranialis flattened throughout with a distinct dorsal margin; and tibiotarsus—fossa developed between the distal extent of crista cnemialis lateralis and crista fibularis, extending proximally to reach caput tibiae. |
Measurements
No measurements are available
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| Source: subf = subfamily, o = order | |||||
| References: Sedinger 1997, Marsh 1875 | |||||
Age range: base of the Middle Pleistocene to the top of the Late/Upper Pleistocene or 0.77400 to 0.01170 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Pleistocene | Japan (Aomori) | S. hasegawai (101897) | |
| Late/Upper Pleistocene | Japan (Aomori) | Anser sp. (101898) S. hasegawai (195045 210642) |