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Californosaurus
Taxonomy
Californosaurus was named by Kuhn (1934) [Sepkoski's age data: Tr u]. It is not extant. It was considered monophyletic by Motani (1999).
It was assigned to Cymbospondylidae by Kuhn (1971); to Merriamosauria by Maisch and Matzke (2000); to Ichthyosauria by Kuhn (1964) and Sepkoski (2002); to Californosauridae by von Huene (1951), McGowan and Motani (2003) and Maisch (2010); and to Euichthyosauria by Motani (1999) and Ji et al. (2016).
It was assigned to Cymbospondylidae by Kuhn (1971); to Merriamosauria by Maisch and Matzke (2000); to Ichthyosauria by Kuhn (1964) and Sepkoski (2002); to Californosauridae by von Huene (1951), McGowan and Motani (2003) and Maisch (2010); and to Euichthyosauria by Motani (1999) and Ji et al. (2016).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1905 | Delphinosaurus Merriam |
| 1908 | Delphinosaurus Merriam p. 88 |
| 1930 | Delphinosaurus Hay p. 126 |
| 1934 | Californosaurus Kuhn |
| 1951 | Californosaurus von Huene p. 90 |
| 1964 | Californosaurus Kuhn p. 324 |
| 1971 | Californosaurus Kuhn p. 22 |
| 1988 | Delphinosaurus Carroll |
| 1999 | Californosaurus Motani |
| 2000 | Californosaurus Maisch and Matzke pp. 67, 97 |
| 2002 | Californosaurus Sepkoski |
| 2002 | Delphinosaurus Sepkoski |
| 2003 | Californosaurus McGowan and Motani |
| 2010 | Californosaurus Maisch |
| 2016 | Californosaurus Ji et al. p. 11 |
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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. †Californosaurus Kuhn 1934
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†Californosaurus perrini Merriam 1902
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Invalid names: Shastasaurus perrini Merriam 1902 [replaced]
Invalid names: Delphinosaurus Merriam 1905 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. W. Maisch and A. T. Matzke 2000 | "Medium-sized ichthyosaur, about 3 m in length, forefin tridactyl, humerus short but with extensive posterior shaft and deep, wide anterior notch, radius and ulna moderately elongate, scapula and coracoid with reduced anterior extensions, glenoid and contact facets enlarged, ilium with posterior process, pubis with very wide obturator notch, slightly smaller than ischium, thoracal vertebral centra rather elongate, more than two thirds as long as high, thoracal neural arches short and wide." | |
| C. Ji et al. 2016 | Dorsal centra discoidal yet thick, with height/ length ratio about 1.6–1.7; humerus anterior flange reduced prox- imally; radius and ulna of equal size; ilium with anteromedial prominence; rib facets not confluent with the anterior facet in any centra. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||