USGS 22883. Muldoon Hill: Cenomanian, Colorado
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Gastropoda indet.
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Bivalvia
- Arcida
- Arcidae
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Breviarca sp.
Conrad 1872
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Bivalvia
- Myalinida
- Inoceramidae
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Inoceramus sp.
Sowerby 1814
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Bivalvia
- Ostreida
- Gryphaeidae
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Exogyra sp.
Say 1820
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Bivalvia
- Pectinida
- Limidae
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? Limatula sp.
Wood 1839
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Bivalvia
- Pectinida
- Pectinidae
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Pecten (Camptonectes) cf. cavanus
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| original and current combination Camptonectes | |||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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? Nuculana sp.
Link 1807
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Cephalopoda
- Ammonitida
- Binneyitidae
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Borissiakoceras compressum
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| corrected as Borissjakoceras | |||||||
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Cephalopoda
- Ammonitida
- Turrilitidae
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Turrilites (Eutiirrilites) sp.
Lamarck 1801
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Cephalopoda
- Ammonitida
- Acanthoceratidae
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Conlinoceras gilberti
(Cobban and Scott 1972)
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Calycoceras leonense
(Adkins 1928)
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| recombined as Calycoceras (Gentoniceras) leonense | |||||||
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Euomphaloceras cf. cunningtoni
(Sharpe 1855)
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| recombined as Cunningtoniceras cunningtoni | |||||||
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Scaphopoda
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Scaphopoda indet.
Bronn 1862
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Polychaeta
- Serpulimorpha
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? Diploconcha sp.
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Anthozoa
- Scleractinia
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Scleractinia informal Solitary coral
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Colorado |
| Coordinates: | 38.1° North, 104.9° West (view map) | ||
| Paleocoordinates: | 38.0° North, 67.5° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Cenomanian | Ammonoid zone: | Conlinoceras gilberti |
| Age range of interval: | 100.50000 - 93.90000 m.y. ago |
Stratigraphy
| Formation: | Graneros Shale | Member: | Thatcher Limestone |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray "limestone" |
| Lithology description: Limestone, dark-gray; weathers dark brown, very hard. Somewhat fossiliferous. Basal part locally has cone-in-cone structure. Locally thins to 6 in. in thickness. Calycoceras and other fossils mainly found at top or in upper few inches | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USGS,USNM |
Metadata
| Database number: | 230801 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2023-07-21 01:20:01 | Last modified: | 2023-07-21 01:20:01 |
| Access level: | the public | Released: | 2023-07-21 01:20:01 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 36104. | fossil record | W. A. Cobban and G. R. Scott. 1972. Stratigraphy and ammonite fauna and the Graneros Shale and Greenhorn Limestone near Pueblo, Colorado. United States Geological Survey Professional Paper. United States Geological Survey Professional Paper 645:1-108 [L. Bulot/L. Bulot] |