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Archeopelta arborensis
Taxonomy
Archeopelta arborensis was named by Desojo et al. (2011). Its type specimen is CPEZ-239a, a partial skeleton, and it is a 3D body fossil. Its type locality is Sanga da Arvore, Baum-Sanga, Xiniquá, which is in a Ladinian terrestrial horizon in the Santa Maria Formation of Brazil. It is the type species of Archeopelta.
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Archeopelta arborensis Desojo et al. p. 841 figs. 3-14 |
| 2013 | Archeopelta arborensis Sues et al. |
| 2016 | Archeopelta arborensis Ezcurra |
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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.
†Archeopelta arborensis Desojo et al. 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Desojo et al. 2011 | Archeopelta arborensis is a doswelliid archosauriform distinct from other archosauromorphs, including Doswellia kaltenbachi, by the presence of the following combination of features (autapomorphies with asterisk): basioccipital without occipital neck separating the occipital condyle from the rest of the basicranium* (also present in Proterosuchus); opistothical paraoccipital processes with large and oval fossa on their dorsomedial corner*; suture between the parabasisphenoid and basioccipital interdigitated and V-shaped in ventral view; parabasisphenoid with minute and strongly posteriorly displaced foramina for the internal carotid artery*; first primordial sacral vertebra with circular and extremely large prezygapophyses accounting for 43% of the total length of the neural arch*; and well-developed V-shaped hyposphene*; humerus with a proximomedially orientated head (unknown in Do. kaltenbachi); ilium with base of the iliac blade medially deflected*; femur with strongly transversely expanded distal end representing approximately 150% of the transverse width of the femoral head*. Furthermore, CPEZ-239a differs from Tarjadia by the presence of a vertical ridge on the dorsal surface of the supraoccipital and the absence of laterally concave dorsal vertebra centra. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||