Mompiche [Santiago facies] (Miocene of Ecuador)

Where: Manabi, Ecuador (0.5° N, 80.0° W: paleocoordinates 0.3° S, 77.2° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Santiago Facies Group, Middle Miocene (16.0 - 11.6 Ma)

• STRATIGRAPHY: no additional information provided. AGE: Placed in Early Miocene by Olsson (1964); regarded as late Miocene by Landau et al. (2012); a Middle or Late Miocene age is more parsimonious on the basis of its faunal constituents.

• formation-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, coarse-grained sandstone and lithified, tuffaceous, gray sandstone

• Coarse nodular sandstones and gray tuffaceous sandstones.

Size class: macrofossils

Primary reference: A. A. Olsson. 1964. Neogene Mollusks From Northwestern Ecuador [A. Miller/K. Bulinski]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 60754: authorized by Arnold Miller, entered by Kate Bulinski on 22.05.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Arcidae
Anadara (Grandiarca) chiriquiensis Gabb 1861 ark
subspecies toroensis
Anadara (Sectarca) marksi Olsson 1964 ark
new species
Barbatia (Barbatia) picota Olsson 1964 clam
new species
 Pectinida - Pectinoidae
Pecten (Pecten) gordus Olsson 1964 scallop
new species
 Cardiida - Chamidae
cf. Arcinella arcinella Linnaeus 1767 jewel box
arcinella
 Carditida - Carditidae
 Carditida - Crassatellidae
Gastropoda
 Cerithioidea - Turritellidae
Turritella abrupta Spieker 1922 turret shell
 Sorbeoconcha - Vermetidae
Petaloconchus sculpturatus Lea 1846 worm shell
 Sorbeoconcha - Cypraeidae
Muracypraea woodringi Landau and Groves 2011 cowry
 Neogastropoda - Cancellariidae
"Cancellaria (Cancellaria) dariena" = Bivetiella dariena
"Cancellaria (Cancellaria) dariena" = Bivetiella dariena Toula 1908 snail
 Neogastropoda - Terebridae
"Terebra (Myurellina) subsulcifera" = Terebra (Oreoterebra) subsulcifera
"Terebra (Myurellina) subsulcifera" = Terebra (Oreoterebra) subsulcifera Brown and Pilsbry 1911 auger snail
 Neogastropoda - Conidae
Conus mompichiensis cone shell
new species
"Conus harrisi" = Conus burckhardti harrisi Olsson 1922 cone shell
Conus molis Brown and Pilsbry 1911 cone shell
 Neogastropoda - Drilliidae
"Clathrodrillia onzola" = Clathrodrillia gatunensis
"Clathrodrillia onzola" = Clathrodrillia gatunensis Toula 1909 snail
new species
 Neogastropoda - Turridae
Polystira oxytropis Sowerby 1834 turrid
ecuadoriana new subspecies
Scobinella onzola turrid
new species
 Neogastropoda - Mitridae
"Mitra woodringi" = Mitra (Atrimitra) woodringi Olsson 1964 mitre shell
new species
Mitra henekeni Sowerby 1850 mitre shell
 Sorbeoconcha - Naticidae
Stigmaulax guppiana Toula 1909 moon snail
 Heterostropha - Architectonicidae
"Architectonica (Architectonica) nobilis" = Architectonica nobilis
"Architectonica (Architectonica) nobilis" = Architectonica nobilis Röding 1798 sundial
nobilis