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Cimoliosaurus snowii
Taxonomy
Cimoliosaurus snowii was named by Williston (1890). Its type specimen is KUVP 1301, a skull (a skull and 28 cervical vertebrae), and it is a 3D body fossil. Its type locality is Hell Creek, which is in a Santonian marine horizon in the Niobrara Formation of Kansas. It is the type species of Styxosaurus.
It was recombined as Cimoliasaurus snowii by Williston (1890), Hay (1902), Williston (1903); it was recombined as Elasmosaurus snowii by Williston (1906), Hay (1930); it was considered a nomen vanum by Welles (1962); it was recombined as Styxosaurus snowii by Welles (1943), Welles (1949), Carpenter (1999), Storrs (1999), O'Keefe (2001), O'Gorman (2019).
It was recombined as Cimoliasaurus snowii by Williston (1890), Hay (1902), Williston (1903); it was recombined as Elasmosaurus snowii by Williston (1906), Hay (1930); it was considered a nomen vanum by Welles (1962); it was recombined as Styxosaurus snowii by Welles (1943), Welles (1949), Carpenter (1999), Storrs (1999), O'Keefe (2001), O'Gorman (2019).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1890 | Cimoliasaurus snowii Williston |
| 1890 | Cimoliosaurus snowii Williston p. 178 |
| 1902 | Cimoliasaurus snowii Hay p. 459 |
| 1903 | Cimoliasaurus snowii Williston p. 7 |
| 1906 | Elasmosaurus snowii Williston p. 229 figs. 2-3 |
| 1930 | Elasmosaurus snowii Hay p. 118 |
| 1943 | Styxosaurus snowii Welles |
| 1949 | Styxosaurus snowii Welles |
| 1949 | Alzadasaurus pembertoni Welles and Bump p. 524 figs. 3-5 |
| 1962 | Alzadasaurus pembertoni Welles pp. 3 & 66 fig. 15 |
| 1999 | Styxosaurus snowii Carpenter |
| 1999 | Styxosaurus snowii Storrs p. 7 |
| 2001 | Styxosaurus snowii O'Keefe p. 15 |
| 2019 | Styxosaurus snowii O'Gorman |
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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.
†Cimoliosaurus snowii Williston 1890
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available