ruby ranch member造句

例句与造句

1. The oldest of these assemblages is from the Yellow Cat, Poison Strip and basal Ruby Ranch members.
2. Evidence for a middle dinosaur assemblage between the older and younger ones is controversial because the evidence mostly depends on a single specimen of the ornithopod " Tenontosaurus " from high in the Ruby Ranch Member and the sauropod " Astrodon " from low in the Ruby Ranch.
3. "Cedarpelta " is known from remains recovered at the CEM and Price River II quarries ( PR-2 ) in eastern Utah; these sites were originally thought to be within the Ruby Ranch Member of the Cedar Mountain Formation, but are now assigned to the base of the overlying Mussentuchit Member, dating to between 116 and 109 million years old ( approximately the Aptian-Albian boundary ).
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