Punta Gorda [Esmeraldas Fm]: Early/Lower Pliocene, Ecuador

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Dentaliida - Dentaliidae
Dentalium (Fissidentalium) esmeraldum
Gastropoda - Epitoniidae
Scalina ferminiana (Dall 1908)
Gastropoda - Neotaenioglossa - Calyptraeidae
Crucibulum (Dispotaea) springvaleense (Rutsch 1942)
Crucibulum (Crucibulum) spinosum Conrad 1855
Calyptraea sp. Lamarck 1799
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
Gastropoda - Naticidae
Sinum lacondamini Olsson 1964
new species
Polinices (Polinices) brunneus
Polinices (Polinices) panamensis
Natica (Naticarius) othella
original and current combination Naticarius
burica
Natica (Natica) ella
new species
Gastropoda - Capulidae
Capulus pacificus
new species
Gastropoda - Vermetidae
Serpulorbis sp. Sasso 1827
Gastropoda - Bursidae
Bursa (Colubrellina) sp. (Fischer 1884)
    = Bursa rugosa Sowerby 1835
Landau and Marques da Silva 2010
Gastropoda - Cassidae
Dalium ecuadorium
Semicassis (Tylocassis) granulata (Born 1778)
    = Semicassis centiquadrata Valenciennes 1832
Beu 2010
Echinophoria woodringi Olsson 1964
new species
Gastropoda - Personidae
Distorsio (Rhysema) clathrata (Lamarck 1816)
Gastropoda - Ranellidae
Cymatium (Lampusia) cf. pileare (Linnaeus 1758)
recombined as Monoplex pilearis
Gastropoda - Tonnidae
Malea ringens (Swainson 1822)
Gastropoda - Ficidae
Ficus lanzi Olsson 1964
new species
Gastropoda - Neogastropoda - Costellariidae
Fusiturricula thranis
new species
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria (Calcarata) trochilia Olsson 1964
recombined as Sveltia trochilia
new species
Trigonostoma triumpha Olsson 1964
recombined as Ventrilia triumpha
new species
Cancellaria (Cancellaria) esmeralda Olsson 1964
new species
Cancellaria (Cancellaria) cf. penita Olsson 1942
Cancellaria cerithea Olsson 1964
new species
Admete (Marksella) jumala Olsson 1964
new species
Gastropoda - Neogastropoda - Mitridae
Atrimitra mexicana Dall 1919
Gastropoda - Neogastropoda - Fasciolariidae
Fusinus (Fusinus) wolfi
new species
Fusinus (Fusinus) esmeraldus
new species
Fusinus (Fusinus) terryi
Gastropoda - Neogastropoda - Buccinidae
Hanetia (Solenosteira) boggsi Pilsbry and Olsson 1941
Neosconsia ecuadoriana Olsson 1964
new species
Metaphos pacificus
new species
Metaphos calathus
new species
Northia (Northia) northiae (Gray in Griffith & Pidgeon 1833)
Cantharus scrupeus
new species
Cantharus scissus
new species
Kelletia ecuadoriana
spelled with current rank as Siphonalia (Kelletia)
new species
Kelletia rugosa Olsson 1964
new species
Metula nepele
new species
Antillophos grandis
new species
Antillophos abundans
new species
Gastropoda - Neogastropoda - Nassariidae
Nassarius (Profundinassa) thielei Olsson 1964
new species
Gordanops esmeraldensus
new species
Gastropoda - Neogastropoda - Columbellidae
Anachis (Anachis) laudabilis
new species
Anachis (Alia) proba
new species
Gastropoda - Neogastropoda - Volutidae
Mysterostropha gyrina Olsson 1964
new species
Calliotectum fischeri Olsson 1964
recombined as Teremachia fischeri
new species
Gastropoda - Neogastropoda - Muricidae
Trophon ecuadorius
new species
Muricanthus ambiquus
Pteropurpura marksi Olsson 1964
new species
Boreotrophon meridionalis
new species
Gastropoda - Neogastropoda - Pseudomelatomidae
Buridrillia dalli
new species
Buridrillia pilsbryi
new species
Buridrillia morrisoni
new species
Gastropoda - Neogastropoda - Conidae
Conus cf. planiliratus Sowerby 1850
recombined as Conasprelloides planiliratus
Conus gypsus
new species
Conus esmeraldus
new species
Conus cf. patriceus
Conus cacuminatus Spieker 1922
Gastropoda - Neogastropoda - Cochlespiridae
Ancistrosyrinx cedonulli (Reeve 1843)
recombined as Cochlespira (Ancistrosyrinx) cedonulli
reevi
Gastropoda - Neogastropoda - Raphitomidae
Pleurotomella esmeralda Olsson 1964
new species
Gastropoda - Neogastropoda - Turridae
Dallora ecuadoria Olsson 1964
new species
Pachyturris carissa Olsson 1964
new species
Polystira oxytropis (Sowerby 1834)
ecuadoriana new subspecies
Gemmula arundia
new species
Gastropoda - Neogastropoda - Clathurellidae
Glyphostoma incertum
new species
Gastropoda - Neogastropoda - Borsoniidae
Borsonella ? turbina
new species
Gastropoda - Xenophoridae
Xenophora dilecta
Gastropoda - Lepetellida - Fissurellidae
Puncturella (Esmeria) palmerae
new species
Gastropoda - Opisthobranchia - Cylichnidae
Scaphander sp. Monfort 1810
Bivalvia - Nuculanida - Nuculanidae
Nuculana (Jupiteria) chiriquiana Olsson 1942
recombined as Saccella chiriquiana
Bivalvia - Solemyida - Nucinellidae
Nucinella cf. subdolus (Strong and Hertlein 1937)
recombined as Neopleurodon subdolus
Bivalvia - Nuculida - Nuculidae
Nucula (Ennucula) docilis Olsson 1964
new species
Bivalvia - Cardiida - Chamidae
Arcinella arcinella (Linnaeus 1767)
cf. arcinella subspecies
Bivalvia - Cardiida - Veneridae
Dosinia (Dosinidia) ponderosa (Gray 1838)
recombined as Dosinia ponderosa
Bivalvia - Cardiida - Tellinidae
Phyllodina francisca
original and current combination Tellina (Phyllodina)
new species
Bivalvia - Cardiida - Cardiidae
Laevicardium viatorium
new species
Trachycardium (Phlogocardia) belcheri (Broderip and Sowerby 1829)
Bivalvia - Lucinida - Lucinidae
Lucina (Lucinoma) chiripanica Olsson 1942
recombined as Lucinoma chiripanica
Bivalvia - Carditida - Carditidae
Cardita (Cardita) cuvieri (Broderip 1832)
synonym of Cardites crassicostata
Bivalvia - Pectinida - Pectinidae
Pecten (Pecten) gordus (Olsson 1964)
new species
Pecten (Flabellipecten) cf. serviceus
original and current combination Flabellipecten
Bivalvia - Pectinida - Limidae
Lima (Acesta) hertleini
original and current combination Acesta
new species
Bivalvia - Pectinida - Anomiidae
Anomia peruviana d'Orbigny 1846
Placunanomia cumingii Broderip 1832
[entered as Placuanomia cumingii]
Bivalvia - Ostreida - Ostreidae
Ostrea (Alectryonia) megodon Hanley 1846
recombined as Undulostrea megodon
Bivalvia - Arcida - Arcidae
Anadara (Sectiarca) henekeni (Maury 1917)
Arca (Arca) suspecta Olsson 1964
new species
Bivalvia - Arcida - Limopsidae
Limopsis zonalis
see common names

Geography
Country:Ecuador State/province:Manabi
Coordinates: 1.0° North, 79.7° West (view map)
Paleocoordinates:0.7° North, 78.9° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Pliocene
Stage:Zanclean 10 m.y. bin:Cenozoic 6
Key time interval:Early/Lower Pliocene
Age range of interval:5.33300 - 3.60000 m.y. ago
Stratigraphy
Formation:Esmeraldas
Stratigraphic resolution:formation
Stratigraphy comments: AGE: Stated to be Late Miocene in text; Early Pliocene following Beu (2010). COMMENTS: Thought to be equivalent to the Borbon formation of the Rio Santiago section, resting unconformably on top of conglomerate beds containing Turritella altilira and other Miocene fossils probably not greater than 300 meters in thickness overlain unconformably by massive to wellbedded brown sandstones

The beds at Quebrada Camarones have a low notherly to nearly horizontal dip, the cutbanks showing bare exposures sometimes rising as high as 30 feet
Lithology and environment
Primary lithology:fine,brown,yellow lithified sandstone
Secondary lithology: lithified sandstone
Includes fossils?Y
Lithology description: thin bedded to massive tuffaceous mudstones sometimes with interbeds of soft sandstones. small or medium-sized rounded pebbles are scattered throughout the formation, or more rarely concentrated into minor beds or seams of conglomerate. Large calcareous concretions, some rounded or with an irregular rootlike shape, generally with hollow centers are common at many places. The beds are highly foraminiferal, with pelagic types, often pure enough to form a foraminiferal oozelike sediment. On the fresh surface of the rock platform, the formation is hard, and of a gray-black or dark olive-green color. In this locality, fossils are found in a lens of rubble with angular chunks of hard shale or mudstone, polished pebbles of hard rocks with pieces of carbonized wood and crushed walnut.
Environment:marine indet.
Geology comments: deep water fauna with a few shallow water forms that were badly worn, indicating transportation, while deep-water fauna were in perfect condition, suggesting turbidity currents.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:60772
Authorizer:A. Miller, A. Hendy Enterer:K. Bulinski, A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2006-05-22 20:01:20 Last modified:2012-11-23 20:01:50
Access level:the public Released:2006-05-22 20:01:20
Creative Commons license:CC BY
Reference information

Primary reference:
17422. A. A. Olsson. 1964. Neogene Mollusks From Northwestern Ecuador [A. Miller/K. Bulinski]

Secondary references:

30037 A. G. Beu. 2010. Neogene Tonnoidean Gastropods of Tropical and South America; contributions to the Dominican Republic and Panama Paleontology Projects and Uplift of the Central American Isthmus. Bulletins of American Paleontology (377-378)1-550 [A. Hendy/A. Hendy/A. Hendy]
36423 B. Landau and C. Marques da Silva. 2010. Early Pliocene gastropods of Cubagua, Venezuela: Taxonomy, palaeobiogeography and ecostratigraphy. Palaeontos 19:1-221 [A. Hendy/A. Hendy]