A potential Revueltosaurus-such as for example creature can be found in the Wolfville Creation (Carnian; Sues & Olsen, 2015 ) out-of Nova Scotia

six.2.step three Most other Revueltosaurus-such as for instance taxa

To start with known an enthusiastic ornithischian dinosaur (Galton, 1983 ), Irmis, Parker, et al. ( 2007 ) argued one NSM 004 Girl , a beneficial posterior part of a remaining maxilla with a lot of a tooth in an enthusiastic alveolus, offers a good amount of character says having R. callenderi in both dental care and you will maxillary morphology and additionally a powerful ridge along the ventral margin of one’s antorbital fossa, the latest better-install buccal emargination of one’s tooth line during the ventral take a look at, and you will a beneficial denticled tooth crown not having a beneficial basal asymmetrical lump (Irmis, Parker, ainsi que al., 2007 ). An ilium regarding Wolfville Creation (NSM 012 Girlfriend ) is very similar to that of Roentgen. callenderi into the which have an anterior means of the fresh iliac knife that doesn’t increase anteriorly beyond the prior the amount of one’s pubic peduncle and it has an over-all, circular dorsal margin for the iliac blade. So it function and supports the current presence of a great Revueltosaurus-such as taxon about development (Sues & Olsen, 2015 ).

6.step three Biostratigraphic events and you can ramifications

Roentgen. callenderi only has come submitted off several parts, the blendr desteДџi type locality about Bull Canyon Development (Dockum Category) out of eastern The fresh new Mexico (Seem, 1989 ; Appear mais aussi al., 2005 ) and the Chinle Formation during the Petrified Tree National Park (Padian, 1990 ; Beuhler ainsi que al., 2001 ; Parker et al., 2005 ; Atchley mais aussi al., 2013 ; Profile 1b). From the second venue, in advance of shopping for coupon specimens of the taxon throughout the highest Blue Mesa Affiliate and you can middle Sonsela Member, R. callenderi is actually thought to take place in a limited stratigraphic diversity for the the lower-middle Petrified Forest Affiliate (Beuhler et al., 2001 ; Have a look, 2001 ; Parker & ) argued that R. callenderi is actually of biochronological energy. Both in the brand new Mexican method of locality and you will Coated Wasteland localities for the northern PEFO, R. callenderi cooccurs on aetosaur T. coccinarum and mystriosuchine (= pseudopalatine) leptosuchomorph phytosaurs, taxa that happen to be utilized once the list taxa on Revueltian holochronozone (Lucas & Appear, 1993 ; ) debated one to just like the in the PEFO Roentgen. callenderi is discover simply inside a certain facies (bluish paleosols) within just one stratigraphic height (just over the Decorated Wilderness step 3 Sandstone), these incidents did not represent the actual stratigraphic a number of brand new taxon and as an alternative mirrored an upkeep prejudice. Subsequent breakthroughs off R. callenderi material on the Owl Material User (Gordon ainsi que al., 2020 ; Whatley ainsi que al., 2013 ) and you will Sonsela Affiliate (Atchley mais aussi al., 2013 ) supporting which hypothesis, that new specimens show that no less than during the PEFO, the stratigraphic list of Roentgen. callenderi runs with the hidden Adamanian holochronozone. The absence of R. callenderi at most other penecontemporaneous websites regarding the American Southwest try puzzling, such offered just how numerous it is at the websites where they starts. Such as for example, the brand new vertebrate assemblage of one’s Petrified Forest Affiliate in the Ghost Farm in north The fresh new Mexico try geographically advanced involving the type of locality regarding Roentgen. callenderi and you can PEFO, offers brand new visibility numerous Revueltian directory taxa (Irmis, Nesbitt, et al., 2007 ; Whiteside et al., 2015 ), and also precise many years limits that show they overlaps eventually towards the all the way down Petrified Forest Affiliate at PEFO (Irmis ainsi que al., 2011 ; Rasmussen et al., 2020 ). There is no obvious taphonomic reasons why this well-tested and you will diverse assemblage shouldn’t uphold Revueltosaurus, whilst contains from small-bodied drepanosaurs so you’re able to large-bodied phytosaurs and you can aetosaurs. Similarly, it’s interested that Roentgen. callenderi was not discovered at other Bull Canyon Creation internet sites or even in similar strata inside western Texas (e.g., Lehman & Chatterjee, 2005 ; ).