Richardoestesia Currie, Rigby, and Sloan,, 1990
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https://doi.org/ 10.4202/app.00934.2021 |
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https://treatment.plazi.org/id/3C0F87E6-3C78-2711-92D7-60FE9529FA30 |
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Felipe |
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Richardoestesia Currie, Rigby, and Sloan, |
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Genus Richardoestesia Currie, Rigby, and Sloan,
1990 Type species: Richardoestesia gilmorei Currie, Rigby, and Sloan, 1990 ;
Dinosaur Park Formation, Upper Cretaceous.
Fig. 7A View Fig .
Material.— MWC 8865 View Materials , tooth; from the Campanian–Maastrichtian , Williams Fork Formation, J &M site, northwest Colorado, USA .
Description.—Laterally compressed and serrated tooth with rounded denticles on the mesial and distal crown margins. Serrations along the distal surface are larger when compared to those on the mesial surface ( Williamson and Brusatte 2014). Given the size of the tooth and relative sizes of the rounded denticles on either margin, we tentatively refer this tooth to Richardoestesia sp.
Remarks.—We refer one tooth to the genus Richardoestesia . The tooth is slightly recurved. The serrations along the distal surface of the crown are relatively large and rounded. The tooth was cracked in two places all the way through the crown when recovered. The specimen has since broken, although photomicrographs were taken before this occurred ( Fig. 7A View Fig ). Without more material, it is impossible to ascertain a species level identification of this tooth. Teeth assigned to Richardoestesia are relatively common in the Upper Cretaceous of North America ( Sullivan and Lucas 2006), and Richardoestesia gilmorei has been reported from the Williams Fork Formation by Diem (1999).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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