Aetosauriformes (Contour dos) differs from other archosaur clades inside the having next novel blend of profile claims (Nesbitt, 2011 ; Butler ainsi que al., 2014 ; ; this research): convex distal edge of distal maxillary pearly whites (distributed to particular loricatans together with crocodylomorphs); circular and you can thicker part into medial region of the posterior means of new squamosal into the paroccipital process (distributed to Turfanosuchus dabanensis); diapophysis and you will parapophysis towards middle trunk area spinal vertebrae longer to your stalks (shared with ornithischian dinosaurs, ornithosuchids, Elizabeth. okeeffeae, and crocodyliforms); distance is actually faster than 80% of your own duration of the new humerus (distributed to Dinosauria, Protosuchus richardsoni, and you can Alligator mississippiensis); and you may presacral paramedian osteoderms is mediolaterally wide than anteroposteriorly enough time (distributed to Riojasuchus tenuisceps, protosuchid crocodyliforms, phytosaurs, and also the archosauriform V. campi); horizontal osteoderms expose throughout the most of the carapace (shared with erpetosuchids, An excellent. geoffreyi and you can aetosaurians).
I finish the medical diagnosis of one’s genus isn’t green and limited by the newest genus because to start with recognized of the Seem ( 1989 ) and you will revised because of the Heckert mais aussi al., ( 2012 ) (get a hold of cause less than). callenderi according to research by the holotype and you may known topic.
Revised medical diagnosis
Roentgen. callenderi and has now the following novel combination of character says (autapomorphies ; ): maxillary pearly whites better inset about horizontal margin of one’s head (= buccal emargination) (shared with ornithischian dinosaurs); random patterning to the dorsal body out of square paramedian osteoderms (as opposed to radial patterning; distributed to T. coccinarum); skull length is higher than regarding the fresh new femur (shared with phytosaurs, proterochampsids, and pterosaurs) where in fact the femur was
61% the size of the newest skull; descending procedure for brand new nose suits on the an excellent concave outlet toward the fresh premaxilla (distributed to T. dabanensis); small exterior nares (limit measurement
1/3 along new orbit anteroposterior length)*; posterior procedure for jugal matches towards the a-v-molded slot regarding the quadratojugal*; strongly verticalized parabasisphenoid (basitubera try dorsal into the pterygoid process) (distributed to particular loricatans); median pharangeal recess of your parabasisphenoid divided from the a strong vertical ridge*; outside facial skin of your own squamosal sideways displaced with regards to the quadrate (shared with aetosaurs, Gracilisuchus stipanicicorum, and you will Tarjadia ruthae); posterior caudal osteoderms fused towards a powerful tubing*; dorsal eminence of your paramedian osteoderms counterbalance sideways about osteoderm center; horizontal osteoderms that are markedly oblong (in place of equant otherwise almost equant) (shared with erpetosuchids); showing set of ventral osteoderms (shared with aetosaurs, eg, S. robertsoni).
4.6 Referred specimens
So it osteological dysfunction is based mostly into: PEFO 33787, PEFO 33788, partial head; PEFO 33789, right scapulocoracoid; PEFO 33819, a couple of sacral centra; PEFO 33845, left posterior part of the iliac knife; PEFO 33847, fused gastralia; PEFO 33848, dorsal rib; PEFO 33861, cervical vertebra; PEFO 33870, incomplete manus; PEFO 33874, kept and right frontals; PEFO 33875, sacral centrum; PEFO 33876, partial proper ilium; PEFO 33892, right ilium; PEFO 33894, kept ilium; PEFO 34056, partial proper ilium; PEFO 34269, limited skeleton and you may head; PEFO 34273, left tibia; PEFO 34274, leftover maxilla and you may lacrimal; and you may PEFO 34561, nearly complete head and you may associated bones; PEFO 34570, partial braincase; PEFO 34833, articulated cervical backbone; PEFO 36875, nearly over head and you can associated sample; PEFO 36876, partial skeleton; PEFO 42442/UWBM 116869, mostly done skeleton; PEFO 38609, https://datingranking.net/tr/brazilcupid-inceleme/ over skull; PEFO 33791, proper ilium; and PEFO 33991, best ilium. A lot more key specimens are NMMNH P-16932, partial bones (See et al., 2005 ), or other NMMNH specimens placed in Heckert ( 2002 ). The fresh solitary feature specimens mentioned above suits issues found in the limited related skeletons which means that is actually unambiguously assignable so you’re able to Reveueltosaurus callenderi. An entire listing of specimens referred to R. callenderi emerges inside Studies S1 and you can linear sized related specimens are supplied in Investigation S2. Come across three dimensional models regarding PEFO 34561 are supplied for the Studies S4.