Where: Veracruz, Mexico (18.1° N, 94.4° W: paleocoordinates 18.2° N, 93.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Agueguexquite Formation, Late/Upper Pliocene (3.6 - 2.6 Ma)
• 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.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; unlithified siliciclastic sediments
Size classes: macrofossils, mesofossils
Collection methods: bulk, surface (in situ), sieve,
• COLLECTOR: Not stated. REPOSITORY: IGM, Mexico.
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 134767: authorized by Austin Hendy, entered by Austin Hendy on 16.10.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Ostrea sp. Linnaeus 1758 oyster | |
Crenella diuturna clam | |
Lirophora (Lirophora) latilirata, "Gouldia insulare" = Gouldia insularis
Lirophora (Lirophora) latilirata Conrad 1841 venus clam
"Gouldia insulare" = Gouldia insularis Dall and Simpson 1901 venus clam | |
Americardia media Linnaeaus 1758 cockle | |
Tellina (Moerella) jungi tellin clam | |
Scaphopoda | |
Cadulus sp. Philippi 1844 tusk shell | |
Dentalium praecursor tusk shell | |
Gastropoda | |
Polinices sp. Monfort 1810 moon snail | |
"Bittium alternatum" = Cerithiopsis alternata
"Bittium alternatum" = Cerithiopsis alternata Gabb 1864 snail | |
Cyclostremiscus (Ponocyclus) pentagonus Gabb 1873 snail | |
Rissoa cf. epulata Pilsbry and Johnson 1917 snail
Schwartziella catesbyana d'Orbigny 1842 snail | |
Anachis (cf. Costoanachis) mira Dall 1896 snail
Mitrella asema snail
Mitrella debooyi Maury 1917 snail | |
Persicula (Gibberula) glandula Weisbord 1962 snail | |
Microdrillia istmica snail | |
Strioterebrum spiniferum auger snail
Terebra (Oreoterebra) subsulcifera Brown and Pilsbry 1911 auger snail | |
Kurtziella (Kurtziella) stenotella Woodring 1970 snail
Kurtziella (Cryoturris) serta Fargo 1953 snail | |
Conus almagrensis Böse 1910 cone shell | |
Nannodiella rintriada Mansfield 1925 snail | |
Uromitra vokesae ribbed mitre | |
Niso willcoxiana snail
Balcis conoidea snail | |
Carinodrillia cf. pylonia Fargo 1953 snail | |
Atys sp. Montfort 1810 snail | |
Sulcoretusa sulcata d'Orbigny 1841 snail | |
Acteocina rusa barrel-bubble
Acteocina lepta Woodring 1928 barrel-bubble | |
"Architectonica (Architectonica) nobilis" = Architectonica nobilis, Architectonica (Pseudotorinia) cf. nupera
"Architectonica (Architectonica) nobilis" = Architectonica nobilis Röding 1798 sundial
Architectonica (Pseudotorinia) cf. nupera Conrad 1834 snail | |
"Turbonilla (Chemnitzia) atlasi" = Chemnitzia, Longchaeus diademata, Longchaeus canaliculata, Turbonilla beatula
"Turbonilla (Chemnitzia) atlasi" = Chemnitzia snail
Longchaeus diademata snail
Longchaeus canaliculata snail
Turbonilla beatula snail |