Locality Q, Venezuela - Weisbord (1964) (Pliocene of Venezuela)

Also known as Locality Q

Where: Sucre, Venezuela (10.0° N, 64.0° W: paleocoordinates 9.9° N, 63.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Maiqueta Member (Playa Grande Formation), Early/Lower Pliocene (5.3 - 3.6 Ma)

• The Playa Grande Formation consists of a variegated assemblage of rocks and atarts at the base with a brown conglomerate. It attains a maximum thickness of 65 ft at its type locality. The deposit is lenticular lying with a pronounced unconformity on the Las Pailas Formatiion. The Maiqueta Member is exposed south of the Bruscas Fault. The Playa Grande and Mare formations of the Cabo Blanco Group are believed to be early Pliocene in age, and the Guaiguaza clay late Pliocene.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, brown, gray siltstone and brown, gray shale

• Beds were laid down in shallow marine waters
• The Maiqueta Member consists of an assemblage of shales, siltstones, sandstones and congglomerates. The rocks are generally drab gray and dull tan in color.

Size class: macrofossils

Preservation: original aragonite

Reposited in the PRI

Collection methods: quarrying,

• Collected by Weisbord in 1955 and 1956. Collections also held at Flordia State University

Primary reference: N. E. Weisbord. 1964. Late Cenozoic scaphopods and serpulid polychaets from northern Venezuela. Bulletins of American Paleontology 47(214):111-199 [A. Miller/A. Hendy/O. Alfaro]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 41550: authorized by Austin Hendy, entered by Austin Hendy on 16.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for mollusca, and serpulids
Bivalvia
 Nuculida - Nuculidae
"Nucula (Nucula) venezuelana" = Nucula (Nucula) vieta2
"Nucula (Nucula) venezuelana" = Nucula (Nucula) vieta2 Guppy 1874 nut clam
 Ostreida - Ostreidae
 Arcida - Arcidae
 Cardiida - Tellinidae
Tellina (? Tellina) sp.2 Linnaeus 1758 tellin clam
 Cardiida - Anatinellidae
"Labiosa (? Raeta) plicatella" = Raeta plicatella2
"Labiosa (? Raeta) plicatella" = Raeta plicatella2 Lamarck 1818 clam
 Cardiida - Veneridae
"Dosinia (Dosinidia) concentrica" = Dosinia (Dosinia) concentrica2
"Dosinia (Dosinidia) concentrica" = Dosinia (Dosinia) concentrica2 Born 1778 venus clam
 Lucinida - Lucinidae
"Lucina (Parvilucina) ephraimi" = Parvilucina2
"Lucina (Parvilucina) ephraimi" = Parvilucina2 clam
Scaphopoda
 Gadilida - Gadilidae
"Cadulus (Gadila) playagrandensis" = Gadila
"Cadulus (Gadila) playagrandensis" = Gadila tusk shell
Gastropoda
 Heterostropha - Ringiculidae
 Heterostropha - Architectonicidae
Architectonica nobilis1 Röding 1798 sundial
 Heterostropha - Pyramidellidae
 Sorbeoconcha - Vitrinellidae
"Cyclostremsicus (Ponocyclus) maiquetiensis" = Cyclostremiscus (Ponocyclus)1
"Cyclostremsicus (Ponocyclus) maiquetiensis" = Cyclostremiscus (Ponocyclus)1 snail
 Sorbeoconcha - Tornidae
Otiomyllon venezuelanum1 Weisbord 1962 snail
 Neogastropoda - Olividae
 Neogastropoda - Drilliidae
"Clathrodrillia mareana" = Clathrodrillia gatunensis1
"Clathrodrillia mareana" = Clathrodrillia gatunensis1 Toula 1909 snail
 Neogastropoda - Conidae
"Conus (Dendroconus) planitectum" = Conus (Pyruconus) planitectum1, Conus (Leptoconus) jaspideus1
"Conus (Dendroconus) planitectum" = Conus (Pyruconus) planitectum1 Weisbord 1962 cone shell
Conus (Leptoconus) jaspideus1 Gmelin 1791 cone shell
 Neogastropoda - Columbellidae
"Strombina caboblanquensis" = Strombina (Strombina) pumilio1
"Strombina caboblanquensis" = Strombina (Strombina) pumilio1 Reeve 1858 snail
 Neogastropoda - Fasciolariidae
"Fasciolaria (? Pleuroploca) sp." = Pleuroploca1
"Fasciolaria (? Pleuroploca) sp." = Pleuroploca1 Fischer 1884 snail
 Sorbeoconcha - Naticidae
 Sorbeoconcha - Cerithiopsidae
 Cerithioidea - Turritellidae
Turritella maiquetana1 turret shell
 Cerithioidea - Cerithiidae
Alabina cereola1 cerith snail
 Trochoidea - Turbinidae
"Astraea (Lithopoma) tuber" = Lithopoma tuber1
"Astraea (Lithopoma) tuber" = Lithopoma tuber1 Linnaeus 1758 snail