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Tricleidus
Taxonomy
Tricleidus was named by Andrews (1909) [Sepkoski's age data: J Call J u]. Its type is Tricleidus seeleyi.
It was assigned to Muraenosauridae by White (1940); to Elasmosauridae by Wegner (1914), Brown (1981) and Carroll (1988); to Tricleidia by O'Keefe (2001); to Plesiosauria by Sepkoski (2002); to Cryptocleidoidea by O'Keefe (2004) and Otero et al. (2012); and to Cryptoclididae by Gasparini et al. (2002), Ketchum and Benson (2010) and Benson and Druckenmiller (2014).
It was assigned to Muraenosauridae by White (1940); to Elasmosauridae by Wegner (1914), Brown (1981) and Carroll (1988); to Tricleidia by O'Keefe (2001); to Plesiosauria by Sepkoski (2002); to Cryptocleidoidea by O'Keefe (2004) and Otero et al. (2012); and to Cryptoclididae by Gasparini et al. (2002), Ketchum and Benson (2010) and Benson and Druckenmiller (2014).
Species
T. seeleyi (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Tricleidus Andrews |
| 1914 | Tricleidus Wegner p. 289 |
| 1940 | Tricleidus White p. 461 |
| 1981 | Tricleidus Brown p. 340 |
| 1988 | Tricleidus Carroll |
| 2001 | Tricleidus O'Keefe p. 19 fig. 20 |
| 2002 | Tricleidus Gasparini et al. |
| 2002 | Tricleidus Sepkoski |
| 2004 | Tricleidus O'Keefe p. 337 figs. Fig. 11 |
| 2010 | Tricleidus Ketchum and Benson p. 15 |
| 2012 | Tricleidus Otero et al. |
| 2014 | Tricleidus Benson and Druckenmiller figs. 2-3 |
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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
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Middle Callovian to the top of the Callovian or 164.70000 to 163.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Toarcian - Oxfordian | Norway (Svalbard) | T. sp. (107003) | |
| Callovian | United Kingdom (England) | T. seeleyi (98448) | |
| Middle Callovian | United Kingdom (England) | T. seeleyi (109800) |