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Utatsusauridae
Taxonomy
Utatsusauridae was named by McGowan and Motani (2003). It is not extant.
It was assigned to Ichthyopterygia by Carroll (1988); to Ichthyopterygia by McGowan and Motani (2003); and to Ichthyosauria by Maisch (2010).
It was assigned to Ichthyopterygia by Carroll (1988); to Ichthyopterygia by McGowan and Motani (2003); and to Ichthyosauria by Maisch (2010).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Utatsusauridae Carroll |
| 2003 | Utatsusauridae McGowan and Motani |
| 2010 | Utatsusauridae Maisch |
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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.
Fm. †Utatsusauridae McGowan and Motani 2003
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Olenekian or 251.20000 to 247.20000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Griesbachian - Smithian | Canada (British Columbia) | Utatsusaurus sp. (196982) | |
| Smithian | Canada (British Columbia) | Utatsusaurus sp. (127262) | |
| Spathian | Japan (Miyagi) | Utatsusaurus hataii (90374) | |
| Spathian | USA (Nevada) | Utatsusaurus sp. (195195) | |
| Olenekian | Japan (Miyagi) | Utatsusaurus hataii (87146) |