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 134769: authorized by Austin Hendy, entered by Austin Hendy on 16.10.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Liotia woodringi Perrilliat 1972 snail | |
Calliostoma sp. Swainson 1840 top snail | |
Balcis conoidea snail | |
Alabina asperoides cerith snail | |
Epitonium (Asperiscala) dupliniana wentletrap | |
Rissoina (Phosinella) sagraiana d'Orbigny 1842 snail
Schwartziella catesbyana d'Orbigny 1842 snail | |
"Bittium alternatum" = Cerithiopsis alternata, Cerithiopsis vinca
"Bittium alternatum" = Cerithiopsis alternata Gabb 1864 snail
Cerithiopsis vinca Olsson and Harbison 1953 snail | |
Triphora hemphilli Bartsch 1907 snail | |
Oliva (Strephonella) sp. Dall 1909 olive snail | |
Coralliophila miocenica Guppy 1874 murex snail | |
"Marginella (Eratoidea) minor" = Volvarina taeniata
"Marginella (Eratoidea) minor" = Volvarina taeniata Sowerby 1846 margin shell | |
Persicula (Gibberula) glandula Weisbord 1962 snail | |
Hanetia dalli Brown and Pilsbry 1911 true whelk | |
"Zanassarina wadei" = Nassarina (Zanassarina), Mitrella asema
"Zanassarina wadei" = Nassarina (Zanassarina) snail
Mitrella asema snail | |
Conus almagrensis Böse 1910 cone shell | |
Microdrillia isthmica snail | |
Drillia inaudita snail
Drillia oerteli snail | |
Kurtziella (Cryoturris) serta Fargo 1953 snail | |
Strioterebrum spiniferum auger snail | |
"Erato maugeriae" = Archierato maugeriae
"Erato maugeriae" = Archierato maugeriae Gray 1832 snail | |
Cyclostremiscus bartschi Mansfield 1930 snail | |
Caecum sp. Fleming 1813 snail
Caecum mexicanum Collins 1937 snail
Caecum (Caecum) regulare Carpenter 1858 snail
Caecum cycloferum Folin 1867 snail
Meioceras constrictum Gabb 1873 snail | |
"Natica (Naticarius) canrena" = Naticarius canrena, Natica sp.
"Natica (Naticarius) canrena" = Naticarius canrena Linnaeus 1758 moon snail
Natica sp. Scopoli 1777 moon snail | |
Sulcoretusa sulcata d'Orbigny 1841 snail
Volvulella (Volvulella) oxytata Bush 1885 snail | |
Acteocina cf. candei d'Orbigny 1841 barrel-bubble
Acteocina lepta Woodring 1928 barrel-bubble | |
Architectonica (Pseudotorinia) cf. nupera Conrad 1834 snail | |
"Turbonilla (Chemnitzia) atlasi" = Chemnitzia snail
Turbonilla beatula snail
Turbonilla sp. Risso 1826 snail | |
Bivalvia | |
Nucula (Nucula) tenuisculpta Gabb 1873 nut clam | |
Corbula (Caryocorbula) cf. lavalleana, Corbula (Caryocorbula) olssoni, "Corbula (Varicorbula) heterogena" = Varicorbula disparilis
"Corbula (Varicorbula) heterogena" = Varicorbula disparilis d'Orbigny 1853 clam | |
Ventricolaria harrisiana, "Gouldia insulare" = Gouldia insularis
Ventricolaria harrisiana Olsson 1922 venus clam
"Gouldia insulare" = Gouldia insularis Dall and Simpson 1901 venus clam | |
"Laevicardium (Laevicardium) laevigatum" = Laevicardium serratum
"Laevicardium (Laevicardium) laevigatum" = Laevicardium serratum Linnaeus 1758 cockle | |
Tellina (Eurytellina) browni tellin clam | |
Barbatia (Barbatia) mauryae, "Barbatia (Acar) domingensis" = Acar domingensis
Barbatia (Barbatia) mauryae Olsson 1922 clam
"Barbatia (Acar) domingensis" = Acar domingensis Lamarck 1819 miniature ark | |
Scaphopoda | |
Dentalium praecursor tusk shell
Dentalium sp. Linnaeus 1758 tusk shell
Dentalium rimosum Bose 1906 tusk shell |