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Kansaignathus
Taxonomy
Kansaignathus was named by Averianov and Lopatin (2021). It is extant. Its type is Kansaignathus sogdianus.
It was assigned to Velociraptorinae by Averianov and Lopatin (2021).
It was assigned to Velociraptorinae by Averianov and Lopatin (2021).
Species
K. sogdianus (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Kansaignathus Averianov and Lopatin p. 570–571 |
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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. Kansaignathus Averianov and Lopatin 2021
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†Kansaignathus sogdianus Averianov and Lopatin 2021
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. O. Averianov and A. V. Lopatin 2021 | The new genus is characterized by a combination of the following characters typical of Dromaeosauridae [1, 2, 7]: a dentary deep and thin labiolingually, dorsal and ventral edges almost parallel, there is a facet for splenial bone on the posteroventral process of the dentary. There are two rows of vascular foramina on the labial side of the dentary (one of them under the alveolar edge, somewhat dorsal of the mddle part, the other, near the ventral edge of the dentary). Interdental plates are indistinguishable, completely merge with the dentary. It differs from the Unenlagiinae in the absence of a deep groove on the labial side, which encloses the vascular foramina, and parallel dorsal and ventral edges of the dentary; from Itemirus Kurzanov, 1976 from the Turonian of Uzbekistan in an almost straight dentary (top view) and an absence of grooves between interdental plates; from the Dromaeosaurus Matthew et Brown, 1922 from the Campanian of Canada in the convex ventral edge of the dentary and a well-defined chin prominence; from Saurornitholestes Sues, 1978 from the Campanian of Canada by a less number of teeth in the mandible (12 vs. 15–16) and the absence of a ventral bent of the anterior edge of the dentary; from Bambiraptor Burnham et al., 2000 from the Campanian of the United States in the presence of the ventral row of vascular foramina in the middle of the dentary and a smaller difference in the depth between the ante- rior and posterior parts of the dentary; from Atrociraptor Currie et Varricchio, 2004 from the upper Campanian–lower Maastrichtian of Canada in the concave dorsal edge of the dentary and completely merged interdental plates; from Deinonychus Ostrom, 1969 from the Aptian–Albian of the United States in a well-defined chin prominence on the dentary, a concave dorsal edge of the dentary with a less number of mandibular teeth (12 vs. 16); and from Velociraptor Osborn, 1924 from the Campanian of Mongolia in a somewhat deeper dentary (the ratio of the maximum depth of the dentary to its length is about 18%, while in Velociraptor, 13% [8]), the absence of a ventral bent of the ante- rior edge of the dentary, the absence of a groove on the lingual side close to the alveolar edge, and a dorsal row of vascular foramina on the labial side, which is closer to the alveolar edge and a less number of mandibular teeth (12 vs. 14–15). It differs from Acheroraptor Evans et al., 2013 from the Maastrichtian of the United States in the slight development of intermediate vascular foramina on the labial side of the dentary and a less number of mandibular teeth (12 vs. 15); from Tsaagan Norell et al., 2006 from the Campanian of Mongolia in the absence of a common groove for the dorsal row of vascular foramina on the labial side of the dentary and a less number of mandibular teeth (12 vs. 14–15); from Linheraptor Xu et al., 2010 from the Campanian of China in the absence of the ventral bent of the ant rior edge of the dentary, and a less number of mandibular teeth (12 vs. 15). |
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Holtz et al. 2000, Marsh 1875 | |||||
Age range: Early/Lower Santonian or 85.80000 to 83.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Santonian | Tajikistan (Sogd) | K. sogdianus (58701) |