The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming
Pseudoceratitic ammonites of the family Engonoceratidae are locally common in the Mowry Shale in the central and northern parts of the Western Interior of the United States. Most occurrences are of crushed, specifically indeterminate specimens, but occasional collections from concretions have well-p...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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1989
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| _version_ | 1826304681662480384 |
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| author | Cobban, W Kennedy, W |
| author_facet | Cobban, W Kennedy, W |
| author_sort | Cobban, W |
| collection | OXFORD |
| description | Pseudoceratitic ammonites of the family Engonoceratidae are locally common in the Mowry Shale in the central and northern parts of the Western Interior of the United States. Most occurrences are of crushed, specifically indeterminate specimens, but occasional collections from concretions have well-preserved, uncrushed material. Metengonoceras aspenanum (Reeside and Weymouth) is revised on the basis of uncrushed specimens from a concretion in the Neogastroplites muelleri zone in the Mowry Member of the Colorado Shale of Petroleum County, Montana. Metengonoceras aspenanum seems to be older than M. teigenense, n.sp., and both species are believed to be of early Cenomanian age. -Authors |
| first_indexed | 2024-03-07T06:21:30Z |
| format | Journal article |
| id | oxford-uuid:f2dc6a98-8921-4def-bd39-507427193121 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:21:30Z |
| publishDate | 1989 |
| record_format | dspace |
| spelling | oxford-uuid:f2dc6a98-8921-4def-bd39-5074271931212022-03-27T12:07:24ZThe ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and WyomingJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f2dc6a98-8921-4def-bd39-507427193121EnglishSymplectic Elements at Oxford1989Cobban, WKennedy, WPseudoceratitic ammonites of the family Engonoceratidae are locally common in the Mowry Shale in the central and northern parts of the Western Interior of the United States. Most occurrences are of crushed, specifically indeterminate specimens, but occasional collections from concretions have well-preserved, uncrushed material. Metengonoceras aspenanum (Reeside and Weymouth) is revised on the basis of uncrushed specimens from a concretion in the Neogastroplites muelleri zone in the Mowry Member of the Colorado Shale of Petroleum County, Montana. Metengonoceras aspenanum seems to be older than M. teigenense, n.sp., and both species are believed to be of early Cenomanian age. -Authors |
| spellingShingle | Cobban, W Kennedy, W The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming |
| title | The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming |
| title_full | The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming |
| title_fullStr | The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming |
| title_full_unstemmed | The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming |
| title_short | The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming |
| title_sort | ammonite metengonoceras hyatt 1903 from the mowry shale cretaceous of montana and wyoming |
| work_keys_str_mv | AT cobbanw theammonitemetengonocerashyatt1903fromthemowryshalecretaceousofmontanaandwyoming AT kennedyw theammonitemetengonocerashyatt1903fromthemowryshalecretaceousofmontanaandwyoming AT cobbanw ammonitemetengonocerashyatt1903fromthemowryshalecretaceousofmontanaandwyoming AT kennedyw ammonitemetengonocerashyatt1903fromthemowryshalecretaceousofmontanaandwyoming |