Horeshoe Gulch, USGS BL31394-PC: Morrowan, Colorado
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Archaeocidaridae
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Archaeocidaris sp.
M'Coy 1844
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unclassified
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Pelmatozoa indet.
Leuckart 1848
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| Columnals | ||||||||||
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Crinoidea
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Crinoidea indet.
Miller 1821
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| Plates | ||||||||||
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Strophomenata
- Productida
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Strophomenida indet.
Opik 1934
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| gen. & sp. indet. | ||||||||||
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= Productida indet.
Sarycheva and Sokolskaya 1959
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Williams et al. 2000 | |||||||||
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Desmoinesia nambeensis
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Sandia welleri
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| replaced by Neosandia | ||||||||||
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Strophomenata
- Productida
- Productellidae
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Antiquatonia coloradoensis
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Strophomenata
- Productida
- Linoproductidae
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Linoproductus nodosus
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Strophomenata
- Strophomenida
- Rugosochonetidae
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Neochonetes cf. whitei
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Rhynchonellata
- Spiriferida
- Spiriferidae
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Anthracospirifer tanoensis
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Rhynchonellata
- Spiriferida
- Trigonotretidae
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Spirifer goreii
Mather 1915
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| recombined as Neospirifer goreii | ||||||||||
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Rhynchonellata
- Athyridida
- Athyrididae
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Composita gibbosa
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Composita ovata
Mather 1915
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unclassified
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Bryozoa indet.
Ehrenberg 1831
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Stenolaemata
- Fenestrata
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Fenestrata indet.
(Elias and Condra 1957)
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| synonym of Fenestelloidea | ||||||||||
| Fenestellid | ||||||||||
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Stenolaemata
- Rhabdomesida
- Rhomboporidae
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Rhombopora sp.
Meek 1872
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Cephalopoda
- Orthocerida
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Orthocerida indet.
Kuhn 1940
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Gastropoda
- Meekospiridae
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Meekospira sp.
Ulrich and Scofield 1897
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Bivalvia
- Pterioida
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Pterioida indet.
Newell 1965
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| Myalinid | ||||||||||
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Trilobita
- Proetida
- Phillipsiidae
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? Paladin sp.
Weller 1936
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Anthozoa
- Rugosa
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Rugosa indet.
Milne-Edwards and Haime 1850
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| Lophophyllid | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Colorado | County: | Park |
| Coordinates: | 39.2° North, 106.2° West (view map) | ||||
| Paleocoordinates: | 0.3° South, 37.4° West | ||||
| Basis of coordinate: | stated in text | ||||
| Altitude: | 12805 feet | ||||
| Geographic resolution: | small collection |
Time
| Period: | Carboniferous | Epoch: | Pennsylvanian |
| Stage: | Bashkirian | 10 m.y. bin: | Carboniferous 4 |
| Key time interval: | Morrowan | ||
| Age range of interval: | 323.20000 - 318.40000 m.y. ago |
Stratigraphy
| Formation: | Belden Shale |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | gray lithified calcareous "shale" |
| Secondary lithology: | fine,shelly/skeletal lithified sandy wackestone |
| Includes fossils? | Y |
| Lithology description: Stratigraphy—Belden Shale (lower part); collected free-weathering and “crack-out” macrofossils from approximately 8 to 10 ft of alternating, nodular, micritic limestone and shale. Lower limestone: skeletal carbonate mudstone, medium-dark-gray to dark-gray, weathering medium light gray to yellowish gray. Shale: medium-darkto dark-gray, slightly calcareous. Upper limestone (skeletal, brachiopodal, bryozoan wackestone to packstone): becoming more evenly bedded, slightly more skeletal, coarser grained, more sandy (containing quartz and feldspar grains), and thicker bedded upward, grading at top into fine-grained, pale-yellowish-brown-weathering, calcareous, skeletal, subarkosic sandstone; top beds make small ledges at ridge crest and on hillside. | |
| Environment: | offshore |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USGS |
Metadata
| Also known as: | Fisher and Henry collection | ||
| Database number: | 42822 | ||
| Authorizer: | J. Alroy, M. Clapham | Enterer: | C. Simpson, M. Clapham |
| Modifier: | C. Simpson | Research group: | marine invertebrate |
| Created: | 2004-08-05 15:04:13 | Last modified: | 2004-08-05 18:04:14 |
| Access level: | the public | Released: | 2004-08-05 15:04:13 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 11259. | T. W. Henry. 1998. The Brachiopod Antiquatonia coloradoensis (Girty) from the Upper Morrowan and Atokan (Lower Middle Pennsylvanian) of the United States. United States Geological Survey Professional Paper 1588:1-51 [J. Alroy/C. Simpson/C. Simpson] |
Secondary references:
| 18078 | A. Williams, S. J. Carlson, C. H. C. Brunton, L. E. Holmer, L. E. Popov, M. Mergl, J. R. Laurie, M. G. Bassett, L. R. M. Cocks, J.-Y. Rong, S. S. Lazarev, R. E. Grant, P. R. Racheboeuf, Y.-G. Jin, B. R. Wardlaw, D. A. T. Harper, and A. D. Wright and M. 2000. Part H Brachiopoda (revised): Volumes 2 & 3, Linguliformea, Craniiformea, Rhynchonelliformea (part). Treatise on Invertebrate Paleontology 1-919 [W. Kiessling/W. Kiessling/W. Kiessling] |