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Hydrotherosaurus
Taxonomy
Hydrotherosaurus was named by Welles (1943) [Sepkoski's age data: K u K Maes-u Sepkoski's reference number: 1069].
It was assigned to Alzadasaurinae by Welles (1962); to Plesiosauria by Sepkoski (2002); to Elasmosauridae by Welles (1943), Welles (1949), Carroll (1988), Carpenter (1999), Ketchum and Benson (2010), Hampe (2013) and Benson and Druckenmiller (2014); and to Elasmosaurinae by O'Gorman (2019).
It was assigned to Alzadasaurinae by Welles (1962); to Plesiosauria by Sepkoski (2002); to Elasmosauridae by Welles (1943), Welles (1949), Carroll (1988), Carpenter (1999), Ketchum and Benson (2010), Hampe (2013) and Benson and Druckenmiller (2014); and to Elasmosaurinae by O'Gorman (2019).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Hydrotherosaurus Welles |
| 1949 | Hydrotherosaurus Welles |
| 1962 | Hydrotherosaurus Welles p. 4 |
| 1988 | Hydrotherosaurus Carroll |
| 1999 | Hydrotherosaurus Carpenter p. 168 fig. 15 |
| 2002 | Hydrotherosaurus Sepkoski |
| 2010 | Hydrotherosaurus Ketchum and Benson p. 15 |
| 2013 | Hydrotherosaurus Hampe fig. 9 |
| 2014 | Hydrotherosaurus Benson and Druckenmiller figs. 2-3 |
| 2019 | Hydrotherosaurus 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.
Diagnosis
No diagnoses are available