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Luopingosaurus
Taxonomy
Luopingosaurus was named by Xu et al. (2023). Its type is Luopingosaurus imparilis.
It was assigned to Pachypleurosauridae by Xu et al. (2023).
It was assigned to Pachypleurosauridae by Xu et al. (2023).
Species
L. imparilis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Luopingosaurus Xu et al. p. 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
| Reference | Diagnosis | |
|---|---|---|
| G.-H. Xu et al. 2023 | A pachypleurosaurid distinguishable from other members of this family by the following combi- nation of features (those unique among pachypleurosaurids identified with an asterisk): snout (preorbital por- tion) long and anteriorly pointed, 55.0% of skull length (*); orbital length about one quarter of skull length; inter- nal naris retracted, without contribution from premaxilla; nasal ending at level of anterior margin of prefrontal; dentary length 71.7% of mandibular length; hyoid length 9.7% of mandibular length; presence of entepicondylar foramen in humerus; 21 cervical and 27 dorsal vertebrae (*); distinct expansions of distal heads of posterior two sacral ribs; six pairs of caudal ribs; phalangeal formula 2–3-5–5-3 for manus and 2–3-4–6-4 for pes (*); Metatarsal I short and stout with expanded proximal end, 56.4% of Metatarsal V in length (*); and Metatarsal IV being longest phalange in pes. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Bush and Bambach 2015, Carroll 1988, Hendy et al. 2009 | |||||