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Limusaurus inextricabilis
Taxonomy
Limusaurus inextricabilis was named by Xu et al. (2009). Its type specimen is IVPP V 15293, a skeleton, and it is a 3D body fossil. Its type locality is TBB2005, Wucaiwan, which is in an Oxfordian mire/swamp mudstone in the Shishugou Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 2009 | Limusaurus inextricabilis Xu et al. p. 940 figs. 1, 2a,b |
| 2011 | Limusaurus inextricabilis Ruiz et al. p. 1272 |
| 2013 | Limusaurus inextricabilis Novas et al. p. 184 |
| 2018 | Limusaurus inextricabilis Delcourt p. 2 |
| 2020 | Limusaurus inexplicabilis de Souza et al. p. 2 |
| 2021 | Limusaurus inextricabilis de Souza et al. p. 1 |
| 2022 | Limusaurus inextricabilis Salem 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.
†Limusaurus inextricabilis Xu et al. 2009
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| X. Xu et al. 2009 | Small ceratosaur with the following autapomorphies: short skull (half as long as the femur); skull and mandible toothless; nasal with a lateral shelf; premaxilla with a convex buccal edge; short and wide nasal less than one-third of skull roof length and only twice as long as wide; ventral process of lacrimal strongly inclined anteriorly; slender jugal with rod-like sub-orbital and sub-temporal rami; large external mandibular fenestra about 40% of mandibular length; flange on anterior margin of scapular blade; radius tightly adhering to ulna, and longer than the latter bone; olecranon process absent; metacarpal II much more robust than other metacarpals; metacarpal III with sub-triangular proximal articular surface and non-ginglymoidal distal end; metacarpal I highly reduced and carrying no phalanges; phalanx II-1 with distinct lateral process proximodorsally; pubis with laterally ridged, prominent posterior boot; metatarsus forming a strong transverse arch; robust ventral process at medial margin of proximal end of metatarsal III; metatarsal IV nearly straight, appressed against lateral surface of metatarsal III for nearly its whole length; and pedal digit I small, only 17% as long as metatarsal III. |
Measurements
No measurements are available
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| Source: o = order | |||||
| References: Marsh 1875, Kiessling 2004 | |||||