IGM Loc. 3680 - Nuevo Teapa [Agueguexquite Fm] (Pliocene of Mexico)

Where: Veracruz, Mexico (18.1° N, 94.3° W: paleocoordinates 18.2° N, 93.7° 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

• SPECIFIC LITHOLOGY: Assumed to be siliciclastic based on other collections. LITHIFICATION: Assumed unlithified, on the basis of preservation of figured specimens.

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 134768: authorized by Austin Hendy, entered by Austin Hendy on 16.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with modern nomenclature, and consistent use of subgenera and species-level assignments.
Bivalvia
 Arcida - Arcidae
"Barbatia (Acar) domingensis" = Acar domingensis
"Barbatia (Acar) domingensis" = Acar domingensis Lamarck 1819 miniature ark
 Mytilida - Mytilidae
 Pholadida - Corbulidae
Corbula (Caryocorbula) cf. lavalleana, "Corbula (Caryocorbula) cf. quirosana" = Caryocorbula quirosana
"Corbula (Caryocorbula) cf. quirosana" = Caryocorbula quirosana Hodson 1931 clam
 Cardiida - Chamidae
Arcinella arcinella Linnaeus 1767 jewel box
 Cardiida - Veneridae
Lirophora (Lirophora) latilirata Conrad 1841 venus clam
Lirophora (Panchione) mactropsis Conrad 1855 venus clam
Ventricolaria harrisiana Olsson 1922 venus clam
"Gouldia insulare" = Gouldia insularis Dall and Simpson 1901 venus clam
 Cardiida - Tellinidae
"Tellina (Eurytellina) browni" = Eurytellina
"Tellina (Eurytellina) browni" = Eurytellina tellin clam
 Cardiida - Cardiidae
Americardia media Linnaeaus 1758 cockle
 Poromyida - Verticordiidae
 Nuculida - Nuculidae
Nucula (Nucula) tenuisculpta Gabb 1873 nut clam
Gastropoda
 Ptenoglossa - Epitoniidae
 Cephalaspidea - Cylichnidae
Acteocina rusa barrel-bubble
 Triphoroidea - Triphoridae
Triphora hemphilli Bartsch 1907 snail
 Neogastropoda - Olividae
Oliva (Strephonella) sp. Dall 1909 olive snail
 Neogastropoda - Columbellidae
"Zanassarina wadei" = Nassarina (Zanassarina) snail
Mitrella debooyi Maury 1917 snail
 Neogastropoda - Buccinidae
 Neogastropoda - Nassariidae
 Neogastropoda - Cystiscidae
Persicula (Gibberula) glandula Weisbord 1962 snail
 Neogastropoda - Marginellidae
"Marginella (Eratoidea) minor" = Volvarina taeniata
"Marginella (Eratoidea) minor" = Volvarina taeniata Sowerby 1846 margin shell
 Neogastropoda - Muricidae
Murex sp. Linnaeus 1758 murex snail
Coralliophila miocenica Guppy 1874 murex snail
 Neogastropoda - Mangeliidae
 Neogastropoda - Drilliidae
"Crassispira (Hindsiclava) consors" = Hindsiclava consors Sowerby 1850 snail
 Neogastropoda - Raphitomidae
 Neogastropoda -
Nannodiella rintriada Mansfield 1925 snail
 Neogastropoda - Borsoniidae
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
Conus consobrinus Sowerby 1850 cone shell
 Neogastropoda - Terebridae
Terebra (Oreoterebra) subsulcifera Brown and Pilsbry 1911 auger snail
 Vanikoroidea - Eulimidae
 Velutinoidea - Triviidae
Niveria suffusa Gray 1827 snail
"Erato maugeriae" = Hespererato maugeriae Gray 1832 snail
Erato sp. Risso 1826 snail
 Naticoidea - Naticidae
Natica sp. Scopoli 1777 moon snail
Polinices sp. Monfort 1810 moon snail
 Vermetoidea - Vermetidae
Petaloconchus sculpturatus Lea 1846 worm shell
 Tonnoidea - Personidae
Distorsio sp. Röding 1798 snail
 Rissooidea - Rissoidae
Rissoa cf. epulata Pilsbry and Johnson 1917 snail
Rissoina (Phosinella) sagraiana d'Orbigny 1842 snail
Schwartziella catesbyana d'Orbigny 1842 snail
 Rissooidea - Vitrinellidae
Cyclostremiscus bartschi Mansfield 1930 snail
 Truncatelloidea - Caecidae
Caecum cycloferum Folin 1867 snail
Caecum (Caecum) regulare Carpenter 1858 snail
Caecum mexicanum Collins 1937 snail
Meioceras constrictum Gabb 1873 snail
 Sorbeoconcha - Turritellidae
Vermicularia spirata Philippi 1836 turret shell
Turritella guppyi Cossmann 1909 turret shell
 Sorbeoconcha - Cerithiidae
Bittium alternatum cerith snail
 Sorbeoconcha - Modulidae
 Architectibranchia - Acteonidae
"Acteon (Acteon) punctostriatus" = Japonactaeon punctostriata
"Acteon (Acteon) punctostriatus" = Japonactaeon punctostriata Adams 1840 snail
 Pyramidelloidea - Pyramidellidae
"Turbonilla (Chemnitzia) atlasi" = Chemnitzia snail
 Architectonicoidea - Architectonicidae
"Architectonica (Architectonica) nobilis" = Architectonica nobilis, Architectonica (Pseudotorinia) cf. nupera
"Architectonica (Architectonica) nobilis" = Architectonica nobilis Röding 1798 sundial
 Trochoidea - Trochidae
Scaphopoda
 Dentaliida - Dentaliidae