Therefore, we just give a changed analysis to have Roentgen

Therefore, we just give a changed analysis to have Roentgen

4.2 Diagnosis

Aetosauriformes (Shape 2) differs from any kind of archosaur clades inside the having the following novel mixture of reputation claims (Nesbitt, 2011 ; Butler et al., 2014 ; ; this study): convex distal side of distal maxillary white teeth (distributed to specific loricatans also crocodylomorphs); round and you will dense part into the medial section of the posterior procedure of the fresh new squamosal on paroccipital techniques (distributed to Turfanosuchus dabanensis); diapophysis and you may parapophysis into middle trunk area backbone prolonged on stalks (shared with ornithischian dinosaurs, ornithosuchids, E. okeeffeae, and crocodyliforms); radius try smaller than just 80% of one’s amount of the humerus (shared with Dinosauria, Protosuchus richardsoni, and you will Alligator mississippiensis); and presacral paramedian osteoderms are mediolaterally greater than anteroposteriorly long (shared with Riojasuchus tenuisceps, protosuchid crocodyliforms, phytosaurs, plus the archosauriform V. campi); lateral osteoderms introduce while in the the carapace (shared with erpetosuchids, An excellent. geoffreyi and you may aetosaurians).

Modified prognosis

I finish that diagnosis of the genus is not green and you may limited to the brand new genus because the originally diagnosed because of the See ( 1989 ) and amended from the Heckert ainsi que al., ( 2012 ) (discover reasoning below). callenderi in accordance with the holotype and you can called matter.

Changed analysis

Roentgen. callenderi and has now the second unique blend of profile says (autapomorphies ; ): maxillary teeth well inset about horizontal margin of your skull (= buccal emargination) (distributed to ornithischian dinosaurs); arbitrary patterning into the dorsal surface regarding rectangular paramedian osteoderms (in lieu of radial patterning; distributed to T. coccinarum); head size exceeds that the newest femur (distributed to phytosaurs, proterochampsids, and you will pterosaurs) where the femur try

61% the size of the fresh head; descending process of brand new nasal matches for the good concave socket to your the premaxilla (distributed to T. dabanensis); brief exterior nares (restriction dimension

1/3 along the fresh orbit anteroposterior size)*; rear process of jugal matches with the a v-designed slot from the quadratojugal*; firmly verticalized parabasisphenoid (basitubera is dorsal toward pterygoid processes) (distributed to particular loricatans); average pharangeal recess of one’s parabasisphenoid separated by the a powerful vertical ridge*; outside skin of your own squamosal sideways displaced depending on the quadrate (distributed to aetosaurs, Gracilisuchus stipanicicorum, and you will Tarjadia ruthae); posterior caudal osteoderms fused for the a good pipe*; dorsal eminence of your own paramedian osteoderms counterbalance laterally from the osteoderm center; horizontal osteoderms which can be significantly oblong (in place of equant or almost equant) (shared with erpetosuchids); articulating number of ventral osteoderms (distributed to aetosaurs, such as, S. robertsoni).

cuatro.6 Known specimens

This osteological description would depend mainly towards: PEFO 33787, PEFO 33788, limited skull; PEFO 33789, proper scapulocoracoid; PEFO 33819, a few sacral centra; PEFO 33845, leftover posterior part of the iliac blade; PEFO 33847, bonded gastralia; PEFO 33848, dorsal rib; PEFO 33861, cervical vertebra; PEFO 33870, incomplete manus; PEFO 33874, kept and you can best frontals; PEFO 33875, sacral centrum; PEFO 33876, limited right ilium; PEFO 33892, proper ilium; PEFO 33894, remaining ilium; PEFO 34056, partial correct ilium; PEFO 34269, partial skeleton and you can skull; PEFO 34273, kept tibia; PEFO 34274, left maxilla and lacrimal; and you will PEFO 34561, nearly complete skull and you can associated bones; PEFO 34570, partial braincase; PEFO 34833, articulated cervical vertebrae; PEFO 36875, almost done skull and you will related specimen; PEFO 36876, partial bones; PEFO 42442/UWBM 116869, mainly complete bones; PEFO 38609, done skull; PEFO 33791, best ilium; and PEFO 33991, correct ilium. Extra trick specimens are NMMNH P-16932, partial bones (Appear ainsi que al., 2005 ), or any other NMMNH specimens placed in Heckert ( 2002 ). The new solitary ability specimens listed above fits aspects found in the limited associated skeletons meaning that try unambiguously assignable to help you Reveueltosaurus callenderi. An entire listing of specimens labeled Roentgen. callenderi emerges in the Study S1 and you can linear measurements of relevant specimens are provided into the Data S2. See three-dimensional models from PEFO 34561 are given from inside the Study S4.

Leave a comment

Your email address will not be published.