Aetosauriformes (Shape dos) is different from any other archosaur clades within the having another unique blend of profile claims (Nesbitt, 2011 ; Butler et al., 2014 ; ; this study): convex distal side of distal maxillary pearly whites (shared with some loricatans as well as crocodylomorphs); round and dense part to the medial region of the rear procedure for the squamosal towards paroccipital processes (shared with Turfanosuchus dabanensis); diapophysis and you may parapophysis for the middle trunk backbone extended to the stalks (distributed to ornithischian dinosaurs, ornithosuchids, E. okeeffeae, and you will crocodyliforms); radius is quicker than just 80% of one’s length of the fresh new humerus (shared with Dinosauria, Protosuchus richardsoni, and Alligator mississippiensis); chatki hesabД±m yasaklandД± and you will presacral paramedian osteoderms is mediolaterally greater than simply anteroposteriorly long (distributed to Riojasuchus tenuisceps, protosuchid crocodyliforms, phytosaurs, and archosauriform V. campi); lateral osteoderms establish during the all carapace (distributed to erpetosuchids, A good. geoffreyi and you can aetosaurians).
We end that prognosis of your genus isn’t renewable and simply for the fresh genus since to start with detected by the Have a look ( 1989 ) and you can revised from the Heckert mais aussi al., ( 2012 ) (find reasoning below). callenderi in line with the holotype and known point.
R. callenderi and contains another novel mix of reputation states (autapomorphies ; ): maxillary teeth really inset on horizontal margin of skull (= buccal emargination) (distributed to ornithischian dinosaurs); arbitrary patterning to your dorsal skin of rectangular paramedian osteoderms (in place of radial patterning; shared with T. coccinarum); head duration is higher than that this new femur (shared with phytosaurs, proterochampsids, and you can pterosaurs) where in actuality the femur are
61% the length of the newest skull; descending procedure for the latest nasal suits into the a beneficial concave retailer towards the new premaxilla (shared with T. dabanensis); small exterior nares (restriction measurement
1/step 3 the length of the brand new orbit anteroposterior size)*; posterior procedure for jugal suits towards a-v-designed slot regarding the quadratojugal*; firmly verticalized parabasisphenoid (basitubera are dorsal towards pterygoid process) (shared with particular loricatans); average pharangeal recess of your own parabasisphenoid split because of the a powerful vertical ridge*; exterior body of your own squamosal sideways displaced depending on the quadrate (shared with aetosaurs, Gracilisuchus stipanicicorum, and you may Tarjadia ruthae); rear caudal osteoderms fused with the a solid tube*; dorsal eminence of the paramedian osteoderms counterbalance sideways throughout the osteoderm center; lateral osteoderms that will be significantly oblong (unlike equant otherwise almost equant) (distributed to erpetosuchids); expressing group of ventral osteoderms (distributed to aetosaurs, eg, S. robertsoni).
cuatro.6 Introduced specimens
It osteological description is based mostly on the: PEFO 33787, PEFO 33788, limited head; PEFO 33789, proper scapulocoracoid; PEFO 33819, a few sacral centra; PEFO 33845, leftover posterior portion of the iliac blade; PEFO 33847, fused gastralia; PEFO 33848, dorsal rib; PEFO 33861, cervical vertebra; PEFO 33870, unfinished manus; PEFO 33874, leftover and you may correct frontals; PEFO 33875, sacral centrum; PEFO 33876, partial proper ilium; PEFO 33892, correct ilium; PEFO 33894, remaining ilium; PEFO 34056, partial proper ilium; PEFO 34269, limited bones and head; PEFO 34273, left tibia; PEFO 34274, left maxilla and you will lacrimal; and you can PEFO 34561, almost done skull and you may related bones; PEFO 34570, limited braincase; PEFO 34833, articulated cervical backbone; PEFO 36875, nearly over head and you will related sample; PEFO 36876, partial bones; PEFO 42442/UWBM 116869, mostly complete skeleton; PEFO 38609, over skull; PEFO 33791, correct ilium; and you will PEFO 33991, proper ilium. Additional key specimens are NMMNH P-16932, limited bones (Search mais aussi al., 2005 ), or other NMMNH specimens placed in Heckert ( 2002 ). The brand new solitary function specimens in the list above meets aspects based in the limited associated skeletons and thus are unambiguously assignable so you can Reveueltosaurus callenderi. A full directory of specimens referred to R. callenderi is offered into the Study S1 and linear measurements of related specimens are provided in Analysis S2. Discover three-dimensional habits from PEFO 34561 are provided into the Research S4.