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Nannopterygius
Taxonomy
Nannopterygius was named by Huene (1923) [Sepkoski's age data: J Tith-l]. It is not extant.
It was assigned to Streptospondylidae by von Huene (1951); to Leptopterygiidae by Carroll (1988); to Ophthalmosauria by Motani (1999); to Leptonectidae by Maisch and Matzke (2000); to Ichthyosauria by Sepkoski (2002); and to Ophthalmosauridae by McGowan and Motani (2003), Maisch (2010).
It was assigned to Streptospondylidae by von Huene (1951); to Leptopterygiidae by Carroll (1988); to Ophthalmosauria by Motani (1999); to Leptonectidae by Maisch and Matzke (2000); to Ichthyosauria by Sepkoski (2002); and to Ophthalmosauridae by McGowan and Motani (2003), Maisch (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Nannopterygius Huene |
| 1951 | Nannopterygius von Huene p. 90 |
| 1988 | Nannopterygius Carroll |
| 1999 | Nannopterygius Motani p. 484 |
| 2000 | Nannopterygius Maisch and Matzke pp. 81, 100 |
| 2002 | Nannopterygius Sepkoski |
| 2003 | Nannopterygius McGowan and Motani |
| 2010 | Nannopterygius 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.
G. †Nannopterygius Huene 1923
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†Nannopterygius enthekiodon Hulke 1871
†Nannopterygius saveljeviensis Arkhangelsky 1997
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Invalid names: Nannopterygius kabanovi Efimov 1999 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Motani 1999 | Forefin small relative to body. | |
| M. W. Maisch and A. T. Matzke 2000 | "Moderately large ichthyosaur, snout long and very slender, dentition
well developed, fore- and hindfins extremely reduced, forefin less than halfmandibular length, neural spines elongated." |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Kimmeridgian to the top of the Tithonian or 154.80000 to 143.10000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kimmeridgian | United Kingdom (england) | N. enthekiodo (144398) | |
| Tithonian | Russian Federation (Ul'yanovsk) | Yasykovia kabanovi (217469) | |
| Tithonian | Russian Federation (Saratov) | Paraophthalmosaurus saveljeviensis (138036) |