IGM Loc. 3679 - El Tepache [Agueguexquite Fm]: Late/Upper Pliocene, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Mytilida
- Crenellidae
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Crenella diuturna
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Cardiidae
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Americardia media
(Linnaeaus 1758)
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Bivalvia
- Cardiida
- Tellinidae
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Tellina (Moerella) jungi
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Bivalvia
- Cardiida
- Veneridae
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Lirophora (Lirophora) latilirata
(Conrad 1841)
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Gouldia insulare
(Dall and Simpson 1901)
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recombined as Gouldia insularis | |||||||
Bivalvia
- Cardiida
- Vesicomyidae
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Vesicomya (Veneriglossa) vesica
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Bivalvia
- Pholadida
- Corbulidae
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Corbula (Caryocorbula) cf. lavalleana
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Scaphopoda
- Gadilida
- Gadilidae
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Cadulus sp.
Philippi 1844
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium praecursor
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Gastropoda
- Opisthobranchia
- Haminoeidae
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Atys sp.
Montfort 1810
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Gastropoda
- Opisthobranchia
- Cylichnidae
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Acteocina rusa
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Acteocina lepta
Woodring 1928
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Gastropoda
- Opisthobranchia
- Retusidae
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Sulcoretusa sulcata
(d'Orbigny 1841)
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Gastropoda
- Heterostropha
- Architectonicidae
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Architectonica (Pseudotorinia) cf. nupera
(Conrad 1834)
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Architectonica (Architectonica) nobilis
(Röding 1798)
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original and current combination Architectonica nobilis | |||||||
Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla beatula
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Turbonilla (Chemnitzia) atlasi
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original and current combination Chemnitzia | |||||||
Longchaeus diademata
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Longchaeus canaliculata
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Gastropoda
- Vitrinellidae
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Cyclostremiscus (Ponocyclus) pentagonus
(Gabb 1873)
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Gastropoda
- Rissoidae
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Rissoa cf. epulata
Pilsbry and Johnson 1917
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Schwartziella catesbyana
(d'Orbigny 1842)
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Gastropoda
- Neogastropoda
- Costellariidae
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Uromitra vokesae
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Gastropoda
- Neogastropoda
- Cystiscidae
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Persicula (Gibberula) glandula
Weisbord 1962
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Gastropoda
- Neogastropoda
- Drilliidae
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Agladrillia (Eumetadrillia) cf. mauryae
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Drillia inaudita
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Drillia urbinai
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Gastropoda
- Neogastropoda
- Clathurellidae
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Nannodiella rintriada
(Mansfield 1925)
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Gastropoda
- Neogastropoda
- Conidae
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Conus almagrensis
Böse 1910
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Gastropoda
- Neogastropoda
- Borsoniidae
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Microdrillia istmica
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Gastropoda
- Neogastropoda
- Mangeliidae
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Kurtziella (Cryoturris) serta
(Fargo 1953)
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Kurtziella (Kurtziella) stenotella
Woodring 1970
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Gastropoda
- Neogastropoda
- Terebridae
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Strioterebrum spiniferum
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Terebra (Oreoterebra) subsulcifera
(Brown and Pilsbry 1911)
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Gastropoda
- Neogastropoda
- Columbellidae
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Mitrella asema
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Mitrella debooyi
(Maury 1917)
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Anachis (cf. Costoanachis) mira
(Dall 1896)
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Gastropoda
- Naticidae
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Polinices sp.
Monfort 1810
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Gastropoda
- Cerithiopsidae
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Bittium alternatum
(Gabb 1864)
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original and current combination Cerithiopsis alternata | |||||||
Gastropoda
- Eulimidae
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Balcis conoidea
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Niso willcoxiana
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Gastropoda
- Pseudomelaniidae
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Carinodrillia cf. pylonia
Fargo 1953
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see common names |
Geography
Country: | Mexico | State/province: | Veracruz |
Coordinates: | 18.1° North, 94.4° West (view map) | ||
Paleocoordinates: | 18.2° North, 93.9° West | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Pliocene |
Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Late/Upper Pliocene | ||
Age range of interval: | 3.60000 - 2.58800 m.y. ago |
Stratigraphy
Formation: | Agueguexquite | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Agueguexquite Formation, for which lithostratigraphic relationships are not stated in english. Overlies the Upper Conception and Filisola Fms (Early-Late Pliocene) according to Collins and Coates (1999, p. 75), and is equivalent to the Tirabuzon Fm of Mexico's Maria Madre Island, and Esmeraldas of NW Ecuador. AGE: Stated to be Pliocene. Assigned here, provisionally, to the late Pliocene age (following PBDB# 59420: "The geological age according to Perilliat (1960) is upper Lower Miocene or lower Middle Miocene (Helvetian or Tortonian). The fauna is apparently closely connected with that from the Choctawhatchee Fm in Florida....The Agueguexquite Fm represents the youngest Miocene deposition as yet found in the Coatzacoalcos Basin and can approximately can be correlated with the Mid-upper Gatun Fm in Panama or with basal Bowden Fm of Jamaica (Thalmann 1935). More recent descriptions of fauna from the Agueguexquite Fm assign it to the Pliocene, more specifically the middle Pliocene (N20). This also matches revised ages for the Bowden Fm, although the Gatun spans the Late Miocene and Early Pliocene. Late Pliocene according to Collins and Coates (1999, p. 75)". STRATIGRAPHIC POSITION: From unknown position in formation. |
Lithology and environment
Primary lithology: | unlithified "siliciclastic" |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Assumed to be siliciclastic based on other collections. LITHIFICATION: Assumed unlithified, on the basis of preservation of figured specimens. | |
Environment: | coastal indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | bulk,surface (in situ),sieve,field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: COLLECTOR: Not stated. REPOSITORY: IGM, Mexico. | |
Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with modern nomenclature, and consistent use of subgenera and species-level assignments. |
Metadata
Database number: | 134767 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
Created: | 2012-10-16 06:45:38 | Last modified: | 2013-11-25 13:37:23 |
Access level: | authorizer only | Released: | 2014-10-16 06:45:38 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
43283. | M. C. Perrilliat and P. Flores-Guerrero. 2011. Moluscos de la Formación Agueguexquite (Plioceno inferior) de Coatzacoalcos, Veracruz, México. Revista Mexicana de Ciencias Geológicas 28(3):379-397 [A. Hendy/A. Hendy] |