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Shamosaurinae (disused)
Taxonomy
Shamosaurinae was named by Tumanova (1983). Its type is Shamosaurus.
It was assigned to Ankylosauridae by Tumanova (1983), Tumanova (1986), Tumanova (1987), Vickaryous and Ryan (1997), Ryan (1997), Carpenter and Kirkland (1998), Kirkland (1998), Ford (2000) and Arbour and Currie (2016).
It was assigned to Ankylosauridae by Tumanova (1983), Tumanova (1986), Tumanova (1987), Vickaryous and Ryan (1997), Ryan (1997), Carpenter and Kirkland (1998), Kirkland (1998), Ford (2000) and Arbour and Currie (2016).
Synonymy list
Year | Name and author |
---|---|
1983 | Shamosaurinae Tumanova p. 110 |
1986 | Shamosaurinae Tumanova p. 75 |
1987 | Shamosaurinae Tumanova p. 23 |
1997 | Shamosaurinae Ryan p. 442 |
1997 | Shamosaurinae Vickaryous and Ryan p. 491 |
1998 | Shamosaurinae Carpenter and Kirkland p. 268 |
1998 | Shamosaurinae Kirkland p. 273 fig. 3 |
2000 | Shamosaurinae Ford p. 176 |
2016 | Shamosaurinae Arbour and Currie p. 402 |
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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.
Subfm. †Shamosaurinae Tumanova 1983
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Diagnosis
Reference | Diagnosis | |
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T. A. Tumanova 1983 | Ankylosaurids with a tapered forward end of the snout; the anterior wall of the pterygoids slopes gently backward, the pterygoids fuse rigidly with the basisphenoid, the interpterygoidal cavity is small, the quadrate bones fuse with the lower edge of the paroccipital lobes (Fig. I b), the occipital condyle changes from a broad oval to a circular shape. | |
T. A. Tumanova 1987 | Ankylosaurids with anterior part of snout narrow; angle of orbital plane with skull axis less than 25°; anterior wall of pterygoids inclined to the rear; occipital condyle wide oval to round; pterygoids fused with basisphenoid; interpterygoid fenestra very small; orbits at midpoint of skull length. |
Measurements
No measurements are available
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Source: o = order | |||||
Reference: Marsh 1875 |
Age range: Early/Lower Cenomanian or 99.60000 to 93.50000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Cenomanian | Uzbekistan (Navoi) | Shamosaurinae indet. (58208) |