A giant scaphite from the Turonian (Upper Cretaceous) of the Western Interior of the United States
A new giant species of scaphite, Scaphites borealis, is described from the upper Turonian Scaphites whitfieldi zone of the Carlile Shale of South Dakota. The ornament of the new species is comparable in style to that of co-occurring S. whitfieldi Cobban, 1952, but its shell volume is 17 times greate...
| Những tác giả chính: | , |
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| Định dạng: | Journal article |
| Ngôn ngữ: | English |
| Được phát hành: |
1991
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