Pachydiscus (Pachydiscus) hornbyense Jones, 1963, and P. (P.) catarinae (Anderson and Hanna, 1935) (Cretaceous, Campanian: Ammonoidea), Pacific Realm marker fossils in the Western Interior Seaway of North America
Pachydiscus (P.) hornbyense Jones, 1963, previously known only from Hornby Island, British Columbia, occurs in the Upper Campanian Baculites jenseni or lowest Maastrichtian Baculites eliasi zone of Garfield County, Montana, the B. compressus or B. cuneatus zone of Pennington County, South Dakota, an...
| Main Authors: | , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
1999
|