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Murusraptor barrosaensis
Taxonomy
Murusraptor barrosaensis was named by Coria and Currie (2016). Its type specimen is MCF-PVPH-411, a partial skeleton, and it is a 3D body fossil. Its type locality is Sierra Barrosa (Sierra Barrosa) [MCF], which is in a Coniacian terrestrial horizon in the Sierra Barrosa Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Murusraptor barrosaensis Coria and Currie p. 3–4 fig. 1–27 |
| 2017 | Murusraptor barrosaensis Paulina-Carabajal and Currie p. 617 |
| 2019 | Murusraptor barrosaensis Aranciaga Rolando et al. p. 105 |
| 2020 | Murusraptor barrosaensis Lamanna et al. p. 256 |
| 2022 | Murusraptor barrosaensis Aranciaga Rolando et al. p. 2 |
| 2022 | Murusraptor barrosaensis Aranciaga Rolando et al. p. 226 |
| 2022 | Murusraptor barrosaensis Baiano and Filippi p. 6 |
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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.
†Murusraptor barrosaensis Coria and Currie 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. A. Coria and P. J. Currie 2016 | Murusraptor barrosaensis is unique in having anterodorsal process of lacrimal longer than height of preorbital process, and a thick, shelf-like thickening on the lateral surface of surangular ventral to the groove between the anterior surangular foramen and the insert for the uppermost intramandibular process of the dentary. Two other characters are only known in Murusraptor; sacral ribs hollow and tubelike; short ischia distally flattened and slightly expanded dorsoventrally. These characters are equivocal because they are unknown in other members of the clade. Also, the following combination of diagnostic characters was obtained after running the phylogenetic analysis using TNT [42]: Character 95, basipterygoid processes of the basisphenoid located anteroventrally, with basisphenoid recess opening posterodorsally (also present in coelophysids); Character 98, basisphenoid with a shallow embayment indentation between basal tubera and basipterygoid processes (also present in Cryolophosaurus and basal theropods); Character 216, rather straight chevrons (reversal to the plesiomorphic condition). | |
| A. M. Aranciaga Rolando et al. 2019 | Megaraptoran theropod diagnosable by the following autapo- morphy: presence of basisphenoid with a shallow embayment between basal tubera and basipterygoid processes (Coria and Currie, 2016). Furthermore, Murusraptor barrosaensis differs from other non-megaraptoran theropods in the following combination of characters (see Discussion): anterior process of lacrimal longer than the height of ventral process; frontal with a sub-triangular cross-section; presence of basisphenoid with basipterygoid processes located anteroventrally and with a basisphenoid recess opening posterodorsally; deep epipterygoid impression on the laterosphenoid; separate canals for CN IV and the orbitocerebral vein that join distally to exit through a single foramen; ossified ethmoidal elements; presence of a shelf-like thickening in the lateral surface of surangular; presence of a short, distally flattened, and slightly dorsoventrally expanded ischium (modified from Coria and Currie, 2016; Paulina-Carabajal and Currie, 2017). |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||