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.
unclassified
  -
Gastropoda
 Trochoidea - Phasianellidae
"Phasianella (Tricolia) perforata" = Tricolia
"Phasianella (Tricolia) perforata" = Tricolia snail
 Trochoidea - Trochidae
Calliostoma sp. Swainson 1840 top snail
 Trochoidea - Tegulidae
 Lepetellida - Fissurellidae
Diodora inaequalis Sowerby 1835 snail
 Epitonioidea - Epitoniidae
Epitonium sp. Bolten 1798 wentletrap
 Vanikoroidea - Eulimidae
 Neotaenioglossa - Calyptraeidae
Crepidula arenata slipper shell
"Crepidula aculeata" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
 Cerithioidea - Cerithiidae
Cerithium adustum cerith snail
Cerithium uncinatum cerith snail
 Cerithioidea - Litiopidae
Alaba supralirata Carpenter 1857 snail
 Cerithioidea - Planaxidae
Fossarus sp. Philippi 1841 snail
 Cerithioidea - Turritellidae
 Cerithioidea - Modulidae
 Neogastropoda - Mitridae
Mitra funiculata mitre shell
Mitra cf. lens mitre shell
Mitra solitaria mitre shell
Mitra sp. Lamarck 1798 mitre shell
 Neogastropoda - Olividae
Olivella gracilis Broderip and Sowerby 1829 olive snail
 Neogastropoda - Buccinidae
 Neogastropoda - Nassariidae
 Neogastropoda - Fasciolariidae
 Neogastropoda - Columbellidae
Anachis sp. Adams and Adams 1853 snail
 Neogastropoda - Conidae
Conus brunneus cone shell
Conus nux cone shell
Conus purpurascens cone shell
Conus tiarattis cone shell
 Neogastropoda - Mangeliidae
"Mangelia sp." = Cythara (Mangelia) Loven 1846 snail
Mangelia hancocki Hertlein and Strong 1939 snail
 Neogastropoda - Raphitomidae
Daphnella sp. Hinds 1844 snail
 Neogastropoda - Terebridae
Terebra strigata auger snail
Terebra sp. Bruguière 1789 auger snail
 Neogastropoda - Turridae
Turridae indet. Swainson 1840 turrid
 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
"Tritonalia parva" = Purpura (Tritonalia) murex snail
Muricopsis dubia 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
Phyllonotus regius murex snail
 Neogastropoda - Harpidae
Morum tuberculosum Sowerby 1885 snail
 Neogastropoda - Cancellariidae
 Sorbeoconcha - Cassidae
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 Morch 1860 snail
SUBSPECIES: Erato marginata galapagensis
 Sorbeoconcha - Littorinidae
 Sorbeoconcha - Naticidae
Polinices uber Valenciennes 1821 moon snail
 Sorbeoconcha - Rissoidae
Alvania veleronis Hertlein and Strong 1939 snail
 Sorbeoconcha - Vermetidae
"Aletes squamigerus" = Thylacodes squamigerus
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 worm shell
 Sorbeoconcha - Cerithiopsidae
 Sorbeoconcha - Triphoridae
 Sorbeoconcha - Hipponicidae
Cheilea equestris Linnaeus 1758 hoof shell
 Heterostropha - Pyramidellidae
Odostomia (Miralda) incantata, "Odostomia (Chrysallida) paupercula" = Chrysallida, Odostomia (Ividella) orariana, Odostomia sp., "Turbonilla (Strioturbonilla) sp." = Strioturbonilla
Odostomia (Miralda) incantata Hertlein and Strong 1939 snail
"Odostomia (Chrysallida) paupercula" = Chrysallida snail
Odostomia sp. Fleming 1817 snail
"Turbonilla (Strioturbonilla) sp." = Strioturbonilla Sacco 1892 snail
 Heterostropha - Trimusculidae
"Gadinia peruviana" = Trimusculus
"Gadinia peruviana" = Trimusculus button snail
 Heterostropha - Ellobiidae
 Heterostropha - Architectonicidae
"Heliacus cf. planispira" = Heliacus (Astronacus) planispira
"Heliacus cf. planispira" = Heliacus (Astronacus) planispira Pilsbry and Lowe 1932 snail
 Opisthobranchia - Pleurobranchidae
Pleurobranchus sp. Cuvier 1804 snail
 Patellida - Lottiidae
Acmaea sp. Eschscholtz 1830 limpet
 Basommatophora - Siphonariidae
Bivalvia
 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
 Pectinida - Limidae
"Lima pacifica" = Limaria pacifica
"Lima pacifica" = Limaria pacifica d'Orbigny 1846 file clam
 Pectinida - Pectinoidae
"Pecten (Lyropecten) magnificus" = Nodipecten magnificus
"Pecten (Lyropecten) magnificus" = Nodipecten magnificus Sowerby 1835 scallop
 Ostreida - Malleidae
 Ostreida - Gryphaeidae
"Ostrea fisheri" = Hyotissa hyotis
"Ostrea fisheri" = Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster
 Mytilida - Mytilidae
"Mytilus adamsianus" = Brachidontes adamsianus Dunker 1857 mussel
Lithophaga aristata Dillwyn 1817 mussel
 Lucinida - Lucinidae
"Codakia galapagana" = Ctena galapagana
"Codakia galapagana" = Ctena galapagana Dall 1901 clam
 Cardiida - Lasaeidae
Kellia suborbicularis Montague 1803 clam
 Cardiida - Chamidae
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
 Carditida - Carditidae
"Venericardia megastropha" = Strophocardia megastropha
"Venericardia megastropha" = Strophocardia megastropha Gray 1825 clam