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Qianichthyosaurus
Taxonomy
Qianichthyosaurus was named by Li (1999).
It was assigned to Euichthyosauria by McGowan and Motani (2003); to Ichthyosauria by Li (1999) and Wang et al. (2008); and to Toretocnemidae by Maisch and Matzke (2000), Maisch et al. (2008), Maisch (2010) and Ji et al. (2016).
It was assigned to Euichthyosauria by McGowan and Motani (2003); to Ichthyosauria by Li (1999) and Wang et al. (2008); and to Toretocnemidae by Maisch and Matzke (2000), Maisch et al. (2008), Maisch (2010) and Ji et al. (2016).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Qianichthyosaurus Li p. 1330 figs. Figure 1 |
| 2000 | Qianichthyosaurus Maisch and Matzke pp. 64, 96 |
| 2003 | Qianichthyosaurus McGowan and Motani |
| 2008 | Qianichthyosaurus Maisch et al. |
| 2008 | Qianichthyosaurus Wang et al. |
| 2010 | Qianichthyosaurus Maisch |
| 2016 | Qianichthyosaurus 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. †Qianichthyosaurus Li 1999
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†Qianichthyosaurus xingyiensis Yang et al. 2013
†Qianichthyosaurus zhoui Li 1999
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Li 1999 | A small to medium-sized longipinnate ichthyosaur differing from other taxa in the combi-
nation of the following characters : rostrum moderately elongated, not much slender but distinct from the cranium, and shorter than 1/2 length of the skull. Orbit greatly enlarged, circular in outline. Postorbital region much shortened. About 42 presacral vertebrae with elongated neural spines. Trunk region of the vertebral column greatly arched dore/ally, while tail only slightly bent down distally. Hind limbs slightly stronger than fore ones. Narmw paddles consisting 4 digits with a phalangeal formula of about 13-15 (hand) or 5-8 (foot) phalanges polygonal or circular in configuration. Major limb bones somewhat more elongated than in Late Triassic fonns, with gap between epipodial elements | |
| M. W. Maisch and A. T. Matzke 2000 | "Small ichthyosaur, less than 2 m entire length, snout very short, orbit very large, forefins with three primary and well developed fourth postaxial digits, neural spines elongate in trunk and anterior tail, haemapophyses very long and slender, as in Toretocnemus." | |
| C. Ji et al. 2016 | Premaxilla posterior end pointed, with both dorsal and ventral processes absent; tridactyl forefin with one accessory digit and tetradactyl hind fin; tibia contiguous shaft complete. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Carnian or 237.00000 to 228.00000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Longobardian | China (Guizhou) | Q. sp. (196508 196509) Q. xingyiensis (98907) | |
| Carnian | China (Guizhou) | Q. zhoui (97873 102997 210059) | |
| Tuvalian | China (Guizhou) | Q. zhoui (85166) |