August 14, 2022

In identical volume in which Heckert ( 2002 ) entitled and revealed “R”

A right quadratojugal shed the dorsal procedure (UCMP 195219; Figure 14e) is close to identical fit to that away from Roentgen

Lots of demonstrated pearly whites out-of Krzyzanowskisaurus hunti of UCMP 7308 come from community number CLC thirty-six/8 (UCMP 139564 to 139,575), with the exception of you to definitely enamel out-of CLC (UCMP 139563). hunti, Heckert and you may Lucas ( 2002b ) described

fifty small rectangular osteoderms on exact same locality, assigning them to juveniles of one’s aetosaur Calyptosuchus wellesi. Since the detailed by the Irmis, Parker, et al. ( 2007 ), these types of osteoderms (Rates 14i, j) is identical off the ones from Roentgen. callenderi. All of the specimens have an increasing prior club and you may faintly incised extensively spaced rounded pitting with a haphazard plan, a character state integration if not novel so you’re able to Roentgen. callenderi. In line with the associated and articulated specimens from Roentgen. callenderi regarding PEFO, the former is actually paramedian osteoderms throughout the rear cervical, dorsal, and you can prior caudal aspects of your body, while the latter morphology is one of the so much more distal caudal part of one’s armour carapace. Some of the osteoderms discussed because of the Heckert and you may Lucas ( 2002b ) hold the exact same field count because the Krzyzanowskisaurus hunti pearly whites, CLC 36/8.

In exploring uncatalogued matter out of locality UCMP 7308, Irmis, Parker, et al. ( 2007 ) in addition to known a few cranial issues referable to help you Revueltosaurus away from career urban area CLC 36/8, a virtually complete kept squamosal (UCMP 165205; Contour 14g) (erroneously indexed as the right squamosal during the Irmis, Parker, et al., 2007 ), and you may a partial quadrate (UCMP 165206; Shape 14f). The new squamosal (UCMP 165205) is actually same as a comparable ability maintained on the PEFO R. callenderi specimens; it’s triradiate, having more substantial anterior procedure that broadens anteriorly, and you will small however, distinctive line of posterodorsal and you can posteroventral processes. Such as for example Roentgen. callenderi, the new dorsolateral surface is sculptured; it sculpturing are bounded medially from the a definite ridge that forms the new horizontal boundary of one’s supratemporal fossa. No matter if very similar to aetosaurs, each other UCMP 165205 and R. callenderi squamosals is actually proportionally greater and reduced versus same function into the aetosaurs (e.grams., Desojo & Baez, 2007 ; Schoch, 2007 ; Quick, 2002 ; Sulej, 2010 ). The remote limited quadrate (UCMP 165206) can not be officially labeled Revueltosaurus once the quadrate out-of R. callenderi does not keeps one autapomorphies, but it is the same in form and you will morphology in order to known instances of factor in Roentgen. callenderi, and offers with this particular taxon an increased medial condyle and you may straight orientation. On the other hand, aetosaur quadrates was dependent anteroventrally (e.g., Desojo & Baez, 2007 ; Schoch, 2007 ; Small, 2002 ; Sulej, 2010 ).

Heckert and you can Lucas ( 2002b ) understood a couple osteoderm morphotypes: those people that is wide than simply enough time, which they interpreted due to the fact paramedian osteoderms, and those that was more than greater, that they translated given that lateral osteoderms

Subsequent study of uncatalogued topic from UCMP 7308 from the article writers indicates additional skeletal point probably referable to Krzyzanowskisaurus hunti (Data 14c–g), and all but one among these points are also off community town CLC 36/8 (truly the only different are parietal UCMP 195227, from CLC –80). A virtually done kept postorbital (UCMP 195217; Contour 14d) is nearly just like compared to R. callenderi and you can differs from almost every other archosauriforms (age.grams., Nesbitt, 2011 : figs. 7, 8, 11), along with aetosaurs, into the having a somewhat short jugal procedure that was associated with new squamosal process because of the an over-all internet away from thin, a little ornamented bone. A couple of prior portions out-of remaining parietals (UCMP 195227 and you may 195228) is actually unlike brand new relatively wide, apartment status of all of the archosaurs (age.grams., Nesbitt, 2011 : figs. 8, 11), and give Roentgen. callenderi a slim upright profile one broadens a little on frontal articular epidermis, and has now a low median ridge, and you can a thinner, dorsally-extreme ridge to your lateral margin you to definitely limitations this new supratemporal fenestra (Figure 14c). callenderi, such as the autapomorphic v-formed articular slot to the jugal, although it does not have this new hefty ornamentation on the lateral body out of specimens away from PEFO. New distal part of a humerus (UCMP 165207; Shape 14h) as well as 2 cervical backbone (UCMP 195222) can’t be officially labeled Revueltosaurus centered on apomorphies, but they are just like an equivalent factors from Roentgen. callenderi plus don’t fulfill the morphology out of most other archosauriform taxa known using this web site (we.elizabeth., An effective. geoffreyi and you may V. campi).