Loc. 21, Arroyo Guayule [Aurora Limestone]: Albian, Mexico
collected by Kellum 1953
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Spatangoida
- Toxasteridae
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Enallaster texanus
(Roemer 1849)
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Echinoidea
- Spatangoida
- Hemiasteridae
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? Hemiaster calvani
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Bivalvia
- Pectinida
- Pectinidae
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Pecten sp.
Müller 1776
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Pecten texanus
Gabb 1861
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| synonym of Camptonectes virgatus | ||||||||||
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Bivalvia
- Pectinida
- Limidae
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Lima cf. elpasensis
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Lima wacoensis
Roemer 1849
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| SUBSPECIES: Lima wacoensis quadrangularis | ||||||||||
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Bivalvia
- Cardiida
- Trapezidae
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Cypricardia aff. texanum
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Bivalvia
- Hippuritida
- Radiolitidae
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Eoradiolites aff. davidsoni
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Pholadomya sp.
Sowerby 1823
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Homomya sp.
Agassiz 1843
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Cephalopoda
- Ammonitida
- Lyelliceratidae
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Budaiceras mexicanum
Böse 1928
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| synonym of Budaiceras hyatti | ||||||||||
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Gastropoda
- Pleurotomariidae
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Pleurotomaria austinensis
Shumard 1861
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| recombined as Pleurotomaria (Leptomaria) austinensis | ||||||||||
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Gastropoda
- Turbinidae
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? Turbo sp.
Linnaeus 1758
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Gastropoda
- Turritellidae
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Turritella aff. leonensis
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Turritella sp.
Lamarck 1799
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Gastropoda
- Aporrhaidae
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? Aporrhais sp.
da Costa 1778
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| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Coahuila de Zaragoza |
| Coordinates: | 26.4° North, 103.3° West (view map) | ||
| Paleocoordinates: | 25.3° North, 64.6° West | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Albian | ||
| Age range of interval: | 113.00000 - 100.50000 m.y. ago |
Stratigraphy
| Formation: | Aurora Limestone | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Aurora Limestone, for which lithostratigraphic relationships are not discussed AGE: Albian, on the basis of biostratigraphic correlation to better dated Texan lithostratigraphic units. STRATIGRAPHIC POSITION: From Lima wacoensis quadrangularis zone; unknown position within the formation. | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Limestone. LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float),surface (in situ),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | UMMP | ||
| Collectors: | Kellum | Collection dates: | 1953 |
| Collection method comments: COLLECTOR: Kellum, 1953. REPOSITORY: UMMP. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Authoritative publication, with antiquated nomenclature, but with species-resolution identifications. | |||
Metadata
| Database number: | 88634 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2009-04-16 21:41:43 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2009-04-16 21:41:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 29733. | L. B. Kellum. 1956. Cretaceous invertebrates of the Aurora Limestone. Papers of the Michigan Academy of Science, Arts, and Letters 41:205-231 [A. Hendy/A. Hendy] |