CAS Loc. 27255, James Bay, Isla San Salvador (Pleistocene of Ecuador)

Where: Ecuador (0.2° S, 90.9° W: paleocoordinates 0.2° S, 90.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, for which stratigraphic relationships are not discussed. AGE: Late Pleistocene or Holocene. STRATIGRAPHIC POSITION: Raised beach, 5-10 m above sea level.

• bed-level stratigraphic resolution

Environment/lithology: marine; unlithified siliciclastic sediments

• SPECIFIC LITHOLOGY: Not stated, but presumably siliciclastic. LITHIFICATION: Unlithified, based on facies description.

Size class: macrofossils

Collected by Hertlein in 1932; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTOR: L.G. Hertlein, 1932. REPOSITORY: CAS.

Primary reference: L. G. Hertlein. 1939. Marine Pleistocene mollusks from the Galapagos Islands. Proceedings of the California Academy of Sciences 23(24):367-380 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 96867: authorized by Austin Hendy, entered by Austin Hendy on 06.07.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, and species-resolution identifications.
Show authors, comments, and common names
unclassified
  -
Astropsammia pedersenii, Bullus punctulatus, Craspedotriton scalariformis, Microcitharia uncinata
Bivalvia
 Carditida - Carditidae
"Venericardia megastropha" = Strophocardia megastropha
"Venericardia megastropha" = Strophocardia megastropha Gray 1825 clam
 Cardiida - Lasaeidae
Kellia suborbicularis
Kellia suborbicularis Montague 1803 clam
 Cardiida - Chamidae
Chama frondosa
Chama frondosa Broderip 1835 jewel box
 Cardiida - Veneridae
Transennella galapagana, "Antigona isocardia" = Globivenus isocardia, "Antigona multicostata" = Periglypta multicostata, Chione undatella
Transennella galapagana Hertlein 1939 venus clam
"Antigona isocardia" = Globivenus isocardia Verrill 1870 venus clam
"Antigona multicostata" = Periglypta multicostata Sowerby 1835 venus clam
Chione undatella Sowerby I 1835 venus clam
 Cardiida - Semelidae
"Semele rupium" = Semele (Elegantula) rupium, "Semele punctata" = Semele (Semele) sowerbyi
"Semele rupium" = Semele (Elegantula) rupium Sowerby 1833 clam
"Semele punctata" = Semele (Semele) sowerbyi Tryon 1869 clam
 Lucinida - Lucinidae
"Codakia galapagana" = Ctena galapagana
"Codakia galapagana" = Ctena galapagana Dall 1901 clam
 Mytilida - Mytilidae
"Mytilus adamsianus" = Brachidontes adamsianus, Lithophaga aristata
"Mytilus adamsianus" = Brachidontes adamsianus Dunker 1857 mussel
Lithophaga aristata Dillwyn 1817 mussel
 Arcida - Arcidae
"Arca (Barbatia) reeveana" = Barbatia (Cucullaearca) reeveana, Acar sp., "Arca (Acar) gradata" = Barbatia (Acar) gradata
"Arca (Barbatia) reeveana" = Barbatia (Cucullaearca) reeveana d'Orbigny 1846 clam
Acar sp. Gray 1857 miniature ark
"Arca (Acar) gradata" = Barbatia (Acar) gradata Broderip and Sowerby 1829 miniature ark
 Arcida - Noetiidae
"Arca (Fossularca) solida" = Arcopsis solida
"Arca (Fossularca) solida" = Arcopsis solida Sowerby I 1833 clam
 Pectinida - Pectinoidae
"Pecten (Lyropecten) magnificus" = Nodipecten magnificus
"Pecten (Lyropecten) magnificus" = Nodipecten magnificus Sowerby 1835 scallop
 Pectinida - Limidae
"Lima pacifica" = Limaria pacifica
"Lima pacifica" = Limaria pacifica d'Orbigny 1846 file clam
 Ostreida - Malleidae
Pedalion chemnitzianum
 Ostreida - Ostreidae
"Ostrea fisheri" = Hyotissa hyotis
"Ostrea fisheri" = Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster
Gastropoda
 Basommatophora - Siphonariidae
Williamia galapagana
 Opisthobranchia - Pleurobranchidae
Pleurobranchus sp.
Pleurobranchus sp. Cuvier 1804 snail
 Neotaenioglossa - Calyptraeidae
Crepidula arenata, "Crepidula aculeata" = Bostrycapulus aculeatus
Crepidula arenata slipper shell
"Crepidula aculeata" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
 Cerithioidea - Litiopidae
Alaba supralirata
Alaba supralirata Carpenter 1857 snail
 Cerithioidea - Modulidae
Modulus cerodes
 Cerithioidea - Cerithiidae
Cerithium adustum, Cerithium uncinatum
Cerithium adustum cerith snail
Cerithium uncinatum cerith snail
 Cerithioidea - Turritellidae
Vermicularia eburnea
 Cerithioidea - Planaxidae
Fossarus angiostoma, Fossarus atratus, Fossarus sp.
Fossarus sp. Philippi 1841 snail
 Sorbeoconcha - Rissoidae
Rissoina dina, Rissoina cf. laurae, Rissoina signae, Alvania lara, Alvania veleronis
Alvania veleronis Hertlein and Strong 1939 snail
 Sorbeoconcha - Cassidae
Cypraecassis tenuis
Cypraecassis tenuis Wood 1828 snail
 Sorbeoconcha - Ranellidae
"Cymatium wiegmanni" = Monoplex wiegmanni
"Cymatium wiegmanni" = Monoplex wiegmanni Anton 1839 triton shell
 Sorbeoconcha - Triviidae
"Trivia pacifica" = Niveria (Niveria) pacifica, "Trivia galapagensis" = Pusula (Pusula) galapagensis
"Trivia pacifica" = Niveria (Niveria) pacifica Gray 1832 snail
"Trivia galapagensis" = Pusula (Pusula) galapagensis Melvill 1900 snail
 Sorbeoconcha - Cypraeidae
"Cypraea nigropunctata" = Pseudozonaria nigropunctata
"Cypraea nigropunctata" = Pseudozonaria nigropunctata Gray 1828 cowry
 Sorbeoconcha - Eratoidae
"Erato marginata" = Hespererato (Hespererato) marginata
"Erato marginata" = Hespererato (Hespererato) marginata Morch 1860 snail
SUBSPECIES: Erato marginata galapagensis
 Neogastropoda - Marginellidae
"Marginella minor" = Volvarina taeniata
"Marginella minor" = Volvarina taeniata Sowerby 1846 margin shell
 Neogastropoda - Cystiscidae
"Cypraeolina margaritula" = Granulina margaritula
"Cypraeolina margaritula" = Granulina margaritula Carpenter 1857 snail
 Neogastropoda - Harpidae
Morum tuberculosum
Morum tuberculosum Sowerby 1885 snail
 Neogastropoda - Muricidae
Aspella erosa, Aspella pyramidalis, Muricopsis dubia, Acanthina grande, Acanthina muricata, "Tritonalia parva" = Purpura (Tritonalia), Phyllonotus princeps, Phyllonotus regius, Thais callaoensis, Thais crassa, Thais patula, Thais planospira
Aspella erosa murex snail
Aspella pyramidalis murex snail
Muricopsis dubia murex snail
"Tritonalia parva" = Purpura (Tritonalia) murex snail
Phyllonotus regius murex snail
Thais callaoensis murex snail
Thais crassa murex snail
Thais patula murex snail
Thais planospira murex snail
 Neogastropoda - Cancellariidae
Cancellaria haemastoma
 Neogastropoda - Conidae
Conus brunneus, Conus nux, Conus purpurascens, Conus tiarattis
Conus brunneus cone shell
Conus nux cone shell
Conus purpurascens cone shell
Conus tiarattis cone shell
 Neogastropoda - Raphitomidae
Philbertia stonezi, Daphnella sp.
Daphnella sp. Hinds 1844 snail
 Neogastropoda - Terebridae
Terebra strigata, Terebra sp.
Terebra strigata auger snail
Terebra sp. Bruguière 1789 auger snail
 Neogastropoda - Mangeliidae
Agathotoma cf. camarina, "Mangelia sp." = Cythara (Mangelia), Mangelia hancocki
"Mangelia sp." = Cythara (Mangelia) Loven 1846 snail
Mangelia hancocki Hertlein and Strong 1939 snail
 Neogastropoda - Turridae
Turridae indet.
Turridae indet. Swainson 1840 turrid
 Neogastropoda - Mitridae
Mitra funiculata, Mitra cf. lens, Mitra solitaria, Mitra sp., Mitra (Strigatella) tristis
Mitra funiculata mitre shell
Mitra cf. lens mitre shell
Mitra solitaria mitre shell
Mitra sp. Lamarck 1798 mitre shell
 Neogastropoda - Olividae
Olivella gracilis
Olivella gracilis Broderip and Sowerby 1829 olive snail
 Sorbeoconcha - Perissityidae
Engina reeviana, Caducifer thaleia, Cantharus sanguinolentus, Mitrella ocellata, Pyrene haemastoma, Anachis incerta, Anachis sp., Latirus tuberculatus, Latirus varicosus, Nassarius versicolor, Tectarius galapagiensis
Engina reeviana true whelk
Caducifer thaleia true whelk
Mitrella ocellata true whelk
Pyrene haemastoma true whelk
Anachis incerta true whelk
Anachis sp. Adams and Adams 1853 true whelk
Latirus varicosus true whelk
 Sorbeoconcha - Fasciolariidae
"Aletes squamigerus" = Thylacodes squamigerus
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 snail
 Caenogastropoda - Fasciolariidae
Cheilea equestris, Hipponix barbatus, Melanella falcata, Melanella cf. hastata, Metaxia convexa, Triphora alternata, Triphora chathamensis, Triphora galapagensis, Triphora inconspicua, Cerithiopsis anaitis, Cerithiopsis curtata, Seila assimillata, Polinices uber
Cheilea equestris Linnaeus 1758 hoof shell
Hipponix barbatus hoof shell
Metaxia convexa Cerpenter 1857 snail
Polinices uber Valenciennes 1821 moon snail
 Epitonioidea - Epitoniidae
Epitonium (Asperoscala) cf. emydoneus, Epitonium sp.
Epitonium sp. Bolten 1798 wentletrap
 Lepetellida - Fissurellidae
Diodora alta, Diodora inaequalis
Diodora inaequalis Sowerby 1835 snail
 Trochoidea - Tegulidae
Tegula cooksoni, Tegula snodgrassi
 Trochoidea - Phasianellidae
"Phasianella (Tricolia) perforata" = Tricolia
"Phasianella (Tricolia) perforata" = Tricolia snail
 Trochoidea - Trochidae
Calliostoma sp.
Calliostoma sp. Swainson 1840 top snail
 Patellida - Lottiidae
Acmaea sp.
Acmaea sp. Eschscholtz 1830 limpet
 Heterostropha - Pyramidellidae
Odostomia (Miralda) incantata, "Odostomia (Chrysallida) paupercula" = Chrysallida, "Turbonilla (Strioturbonilla) sp." = Strioturbonilla, Odostomia (Ividella) orariana, Odostomia sp.
Odostomia (Miralda) incantata Hertlein and Strong 1939 snail
"Odostomia (Chrysallida) paupercula" = Chrysallida snail
"Turbonilla (Strioturbonilla) sp." = Strioturbonilla Sacco 1892 snail
Odostomia sp. Fleming 1817 snail
 Heterostropha - Trimusculidae
"Gadinia peruviana" = Trimusculus
"Gadinia peruviana" = Trimusculus button snail
 Heterostropha - Ellobiidae
Pedipes angulatus
 Heterostropha - Architectonicidae
"Heliacus cf. planispira" = Heliacus (Astronacus) planispira
"Heliacus cf. planispira" = Heliacus (Astronacus) planispira Pilsbry and Lowe 1932 snail