A possible Revueltosaurus-particularly animal is available throughout the Wolfville Creation (Carnian; Sues & Olsen, 2015 ) regarding Nova Scotia

A possible Revueltosaurus-particularly animal is available throughout the Wolfville Creation (Carnian; Sues & Olsen, 2015 ) regarding Nova Scotia

A possible Revueltosaurus-particularly animal is available throughout the Wolfville Creation (Carnian; Sues & Olsen, 2015 ) regarding Nova Scotia

six.2.3 Other Revueltosaurus-including taxa

To start with regarded a keen ornithischian dinosaur (Galton, 1983 ), Irmis, Parker, et al. ( 2007 ) debated one to NSM 004 Girlfriend , a great posterior percentage of a left maxilla with a lot of good tooth when you look at the an alveolus, shares numerous reputation says that have R. callenderi in both dental care and you may maxillary morphology including a robust ridge along side ventral margin of your own antorbital fossa, the well-establish buccal emargination of your tooth row for the ventral consider, and a good denticled enamel crown without having good basal asymmetrical lump (Irmis, Parker, et al., 2007 ). An ilium in the Wolfville Development (NSM 012 Sweetheart ) is very like Roentgen. callenderi in the that have an enthusiastic prior process of the fresh new iliac blade one does not stretch anteriorly not in the prior the amount of the pubic peduncle and it has a broad, rounded dorsal margin into the iliac knife. It element including supports the existence of an excellent Revueltosaurus-such as for example taxon regarding the creation (Sues & Olsen, 2015 ).

six.step three Biostratigraphic events and you may implications

R. callenderi only has been registered regarding a few components, the sort locality regarding Bull Canyon Creation (Dockum Category) regarding east This new Mexico (Seem, 1989 ; Check ainsi que al., 2005 ) and Chinle Development in the Petrified Tree Federal Park (Padian, 1990 ; Beuhler et al., 2001 ; Parker et al., 2005 ; Atchley et al., 2013 ; Contour 1b). From the latter area, just before wanting voucher specimens of your own taxon regarding the highest Bluish Mesa User and you can center Sonsela Affiliate, R. callenderi is actually said to occur in a restricted stratigraphic assortment into the the low-center Petrified Forest Representative (Beuhler et al., 2001 ; Appear, 2001 ; Parker & ) argued one Roentgen. callenderi is actually off biochronological utility. In the fresh Mexican method of locality and you will Painted Wasteland localities inside the northern PEFO, Roentgen. callenderi cooccurs to the aetosaur T. coccinarum and you will mystriosuchine (= pseudopalatine) leptosuchomorph phytosaurs, taxa that have been made use of as the index taxa on Revueltian holochronozone (Lucas & Have a look, 1993 ; ) contended one to while the on PEFO R. callenderi is found simply during the a particular facies (bluish paleosols) from the blendr giriЕџ an individual stratigraphic height (just over the Painted Desert 3 Sandstone), these events don’t depict the real stratigraphic variety of the brand new taxon and you will rather reflected a preservation bias. Next findings out of R. callenderi matter regarding Owl Rock Associate (Gordon et al., 2020 ; Whatley ainsi que al., 2013 ) and you can Sonsela User (Atchley ainsi que al., 2013 ) helps so it theory, and these new specimens reveal that at least from the PEFO, the new stratigraphic selection of Roentgen. callenderi offers to the underlying Adamanian holochronozone. The absence of Roentgen. callenderi on other penecontemporaneous sites regarding American Southwest is puzzling, for example given how plentiful it is on internet where they occurs. Such as for example, this new vertebrate assemblage of your Petrified Tree Associate within Ghost Farm into the northern The new Mexico was geographically intermediate involving the method of locality regarding Roentgen. callenderi and you can PEFO, shares the brand new visibility different Revueltian index taxa (Irmis, Nesbitt, mais aussi al., 2007 ; Whiteside mais aussi al., 2015 ), and also particular years limitations that show it overlaps with time for the all the way down Petrified Tree Representative at PEFO (Irmis mais aussi al., 2011 ; Rasmussen mais aussi al., 2020 ). There is absolutely no noticeable taphonomic good reason why which better-sampled and you can varied assemblage shouldn’t maintain Revueltosaurus, whilst contains many techniques from short-bodied drepanosaurs to help you highest-bodied phytosaurs and you can aetosaurs. Similarly, it is curious one to R. callenderi was not available at almost every other Bull Canyon Creation web sites or in similar strata in western Texas (e.grams., Lehman & Chatterjee, 2005 ; ).

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