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

Where: Ecuador (0.2° S, 90.9° 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: CC0 (CC0)

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, Craspedotriton scalariformis
Gastropoda
 Sorbeoconcha - Eratoidae
Erato marginata galapagensis
unclassified
  -
Microcitharia uncinata
Gastropoda
 Patellida - Lottiidae
Acmaea sp.
Acmaea sp. Eschscholtz 1830 limpet
 Heterostropha - Architectonicidae
"Heliacus cf. planispira" = Heliacus (Astronacus) planispira
"Heliacus cf. planispira" = Heliacus (Astronacus) planispira Pilsbry and Lowe 1932 snail
 Heterostropha - Pyramidellidae
Odostomia (Ividella) orariana, Odostomia sp., Odostomia (Miralda) incantata, "Turbonilla (Strioturbonilla) sp." = Strioturbonilla, "Odostomia (Chrysallida) paupercula" = Chrysallida
Odostomia sp. Fleming 1817 snail
Odostomia (Miralda) incantata Hertlein and Strong 1939 snail
"Turbonilla (Strioturbonilla) sp." = Strioturbonilla Sacco 1892 snail
"Odostomia (Chrysallida) paupercula" = Chrysallida snail
 Heterostropha - Ellobiidae
Pedipes angulatus
 Heterostropha - Trimusculidae
"Gadinia peruviana" = Trimusculus
"Gadinia peruviana" = Trimusculus button 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
 Lepetellida - Fissurellidae
Diodora alta, Diodora inaequalis
Diodora inaequalis Sowerby 1835 snail
 Neogastropoda - Conidae
Conus brunneus, Conus nux, Conus tiarattis, Conus purpurascens
Conus brunneus cone shell
Conus nux cone shell
Conus tiarattis cone shell
Conus purpurascens Broderip 1833 cone shell
 Neogastropoda - Mangeliidae
"Mangelia sp." = Cythara (Mangelia), Mangelia hancocki, Agathotoma cf. camarina
"Mangelia sp." = Cythara (Mangelia) Loven 1846 snail
Mangelia hancocki Hertlein and Strong 1939 snail
 Neogastropoda - Terebridae
Terebra sp., "Terebra strigata" = Terebra (Terebra) strigata
Terebra sp. Bruguière 1789 auger snail
"Terebra strigata" = Terebra (Terebra) strigata Sowerby 1825 auger snail
 Neogastropoda - Raphitomidae
Daphnella sp., Philbertia stonezi
Daphnella sp. Hinds 1844 snail
 Neogastropoda - Turridae
Turridae indet.
Turridae indet. Swainson 1840 turrid
 Neogastropoda - Columbellidae
Anachis incerta, Anachis sp., Pyrene haemastoma, Mitrella ocellata
Anachis sp. Adams and Adams 1853 snail
Mitrella ocellata Gmelin 1791 snail
 Neogastropoda - Nassariidae
"Nassarius versicolor" = Phrontis versicolor
"Nassarius versicolor" = Phrontis versicolor Adams 1852 snail
 Neogastropoda - Fasciolariidae
Latirus tuberculatus, Latirus varicosus
 Neogastropoda - Buccinidae
Cantharus sanguinolentus, Caducifer thaleia, Engina reeviana
Cantharus sanguinolentus Duclos 1833 true whelk
Caducifer thaleia true whelk
Engina reeviana true whelk
 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 - Muricidae
Phyllonotus princeps, Phyllonotus regius, Acanthina grande, Acanthina muricata, Muricopsis dubia, "Tritonalia parva" = Purpura (Tritonalia), Thais callaoensis, Thais crassa, Thais patula, Thais planospira, Aspella erosa, Aspella pyramidalis
Phyllonotus regius murex snail
Muricopsis dubia murex snail
"Tritonalia parva" = Purpura (Tritonalia) murex snail
Thais callaoensis murex snail
Thais crassa murex snail
Thais patula murex snail
Thais planospira murex snail
Aspella erosa murex snail
Aspella pyramidalis murex snail
 Neogastropoda - Harpidae
Morum tuberculosum
Morum tuberculosum Sowerby 1885 snail
 Neogastropoda - Olividae
"Olivella gracilis" = Olivella (Olivella) gracilis
"Olivella gracilis" = Olivella (Olivella) gracilis Broderip and Sowerby 1829 olive snail
 Neogastropoda - Cancellariidae
Cancellaria haemastoma
 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
 Sorbeoconcha - Cypraeidae
"Cypraea nigropunctata" = Pseudozonaria nigropunctata
"Cypraea nigropunctata" = Pseudozonaria nigropunctata Gray 1828 cowry
 Sorbeoconcha - Triviidae
"Trivia galapagensis" = Pusula (Pusula) galapagensis, "Trivia pacifica" = Niveria (Niveria) pacifica
"Trivia galapagensis" = Pusula (Pusula) galapagensis Melvill 1900 snail
"Trivia pacifica" = Niveria (Niveria) pacifica Gray 1832 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 - Naticidae
Polinices uber
Polinices uber Valenciennes 1821 moon snail
 Sorbeoconcha - Hipponicidae
Hipponix barbatus, Cheilea equestris
Cheilea equestris Linnaeus 1758 hoof shell
 Sorbeoconcha - Littorinidae
Tectarius galapagiensis
 Sorbeoconcha - Cerithiopsidae
Seila assimillata, Cerithiopsis anaitis, Cerithiopsis curtata
 Sorbeoconcha - Triphoridae
Metaxia convexa, Triphora alternata, Triphora chathamensis, Triphora galapagensis, Triphora inconspicua
Metaxia convexa Cerpenter 1857 snail
 Sorbeoconcha - Rissoidae
Alvania lara, Alvania veleronis, Rissoina dina, Rissoina cf. laurae, Rissoina signae
Alvania veleronis Hertlein and Strong 1939 snail
 Sorbeoconcha - Vermetidae
"Aletes squamigerus" = Thylacodes squamigerus
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 worm shell
 Neotaenioglossa - Calyptraeidae
"Crepidula aculeata" = Bostrycapulus aculeatus, Crepidula arenata
"Crepidula aculeata" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
Crepidula arenata Broderip 1834 slipper shell
 Cerithioidea - Turritellidae
Vermicularia eburnea
Vermicularia eburnea Reeve 1842 turret shell
 Cerithioidea - Litiopidae
Alaba supralirata
Alaba supralirata Carpenter 1857 snail
 Cerithioidea - Cerithiidae
Cerithium adustum, Cerithium uncinatum
Cerithium adustum cerith snail
Cerithium uncinatum cerith snail
 Cerithioidea - Planaxidae
Fossarus angiostoma, Fossarus atratus, Fossarus sp.
Fossarus sp. Philippi 1841 snail
 Cerithioidea - Modulidae
Modulus cerodes
 Vanikoroidea - Eulimidae
Melanella falcata, Melanella cf. hastata
 Epitonioidea - Epitoniidae
Epitonium (Asperoscala) cf. emydoneus, Epitonium sp.
Epitonium sp. Bolten 1798 wentletrap
 Basommatophora - Siphonariidae
Williamia galapagana
 Opisthobranchiata - Bullidae
"Bullus punctulatus" = Bulla punctulata
"Bullus punctulatus" = Bulla punctulata Adams 1850 snail
 Opisthobranchiata - Pleurobranchidae
Pleurobranchus sp.
Pleurobranchus sp. Cuvier 1804 snail
Bivalvia
 Mytilida - Mytilidae
"Mytilus adamsianus" = Brachidontes adamsianus, Lithophaga aristata
"Mytilus adamsianus" = Brachidontes adamsianus Dunker 1857 mussel
Lithophaga aristata Dillwyn 1817 mussel
 Arcida - Noetiidae
"Arca (Fossularca) solida" = Arcopsis solida
"Arca (Fossularca) solida" = Arcopsis solida Sowerby I 1833 clam
 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
 Ostreida - Gryphaeidae
"Ostrea fisheri" = Hyotissa hyotis
"Ostrea fisheri" = Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster
 Ostreida - Malleidae
Pedalion chemnitzianum
 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
 Carditida - Carditidae
"Venericardia megastropha" = Strophocardia megastropha
"Venericardia megastropha" = Strophocardia megastropha Gray 1825 clam
 Lucinida - Lucinidae
"Codakia galapagana" = Ctena galapagana
"Codakia galapagana" = Ctena galapagana Dall 1901 clam
 Cardiida - Lasaeidae
Kellia suborbicularis
Kellia suborbicularis Montague 1803 kelly clam
 Cardiida - Semelidae
"Semele punctata" = Semele (Semele) sowerbyi, "Semele rupium" = Semele (Elegantula) rupium
"Semele punctata" = Semele (Semele) sowerbyi Tryon 1869 clam
"Semele rupium" = Semele (Elegantula) rupium Sowerby 1833 clam
 Cardiida - Veneridae
Chione undatella, "Antigona multicostata" = Periglypta multicostata, "Antigona isocardia" = Globivenus isocardia, Transennella galapagana
Chione undatella Sowerby I 1835 venus clam
"Antigona multicostata" = Periglypta multicostata Sowerby 1835 venus clam
"Antigona isocardia" = Globivenus isocardia Verrill 1870 venus clam
Transennella galapagana Hertlein 1939 venus clam
 Cardiida - Chamidae
Chama frondosa
Chama frondosa Broderip 1835 jewel box