Isla de Guadalupe (Pleistocene of Mexico)

Where: Baja California, Mexico (29.0° N, 118.3° W: paleocoordinates 29.0° N, 118.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Discovery Point Formation, Late/Upper Pleistocene (0.1 - 0.0 Ma)

• 127-117 ka (Muhs 1994)

• group of beds-level stratigraphic resolution

Environment/lithology: perireef or subreef; conglomerate and limestone

• coarsely clastic sediments that grade laterally from conglomerate, locally with pebbles of volcanic origin, to a biostrome formed chiefly of coral fragments and mollusk shells

Size classes: macrofossils, microfossils

Primary reference: D. R. Lindberg, B. Roth, M. G. Kellogg and C. L. Hubbs. 1980. Invertebrate megafossils of Pleistocene (Sangamon Interglacial) age from Isla de Guadalupe, Baja California, Mexico. In D. M. Power (ed.), The California Islands: Proceedings of a Multidisciplinary Symposium 41-70 [W. Kiessling/U. Merkel/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89573: authorized by Wolfgang Kiessling, entered by Uta Merkel on 03.06.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Globothalamea
 Rotaliida - Cibicididae
 Rotaliida - Rosalinidae
Anthozoa
 Scleractinia - Pocilloporidae
Pocillopora guadalupensis n. sp. Durham 1980 stony coral
Crustacea
  -
Crustacea indet. Brünnich 1772
Polychaeta
  -
Polychaeta indet. Grube 1850
 Sabellida - Serpulidae
Serpulidae indet. Rafinesque 1835
Bivalvia
 Mytilida - Mytilidae
Brachidontes adamsianus Dunker 1857 mussel
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Arcida - Arcidae
Barbatia reeveana d'Orbigny 1846 clam
 Cardiida - Chamidae
Chama squamuligera Pilsbry and Lowe 1932 jewel box
 Cardiida - Veneridae
"Chione squamosa" = Chioneryx squamosa
"Chione squamosa" = Chioneryx squamosa Carpenter 1857 venus clam
 Cardiida - Lasaeidae
Lasaea sp. Brown 1827 clam
 Lucinida - Lucinidae
"Ctena mexicana" = Ctena (Ctena) mexicana Dall 1901 clam
Codakia distinguenda Tryon 1872 clam
Gastropoda
 Heterostropha - Architectonicidae
Heliacus sp. d'Orbigny 1842 snail
 Heterostropha - Rissoellidae
 Heterostropha - Pyramidellidae
Odostomia terebellum, Odostomia sp., "Odostomia aepynota" = Ividia aepynota, "Turbonilla (Chemnitzia) sp." = Chemnitzia, "Odostomia navisa" = Ividella navisa
Odostomia sp. Fleming 1817 snail
"Odostomia aepynota" = Ividia aepynota Dall and Bartsch 1909 snail
"Turbonilla (Chemnitzia) sp." = Chemnitzia d'Orbigny 1840 snail
"Odostomia navisa" = Ividella navisa Dall and Bartsch 1907 snail
 Heterostropha - Ellobiidae
 Sorbeoconcha - Truncatellidae
 Sorbeoconcha - Hipponicidae
 Sorbeoconcha - Littorinidae
"Littorina keenae" = Littorina (Neritrema) keenae
"Littorina keenae" = Littorina (Neritrema) keenae Rosewater 1978 periwinkle
 Sorbeoconcha - Barleeiidae
Barleeia haliotiphila Carpenter 1864 snail
Barleeia subtenuis Carpenter 1864 snail
Amphithalamus inclusus Lozouet 1998 snail
 Sorbeoconcha - Rissoidae
"Alvinia oldroydae" = Actonia oldroydae, Alvinia purpurea
"Alvinia oldroydae" = Actonia oldroydae Bartsch 1911 snail
Alvinia purpurea Dall 1871 snail
 Neogastropoda - Marginellidae
Volvarina taeniolata Mörch 1860 margin shell
 Neogastropoda - Muricidae
"Murexiella cf. lappa" = Favartia lappa, Thais planospira, Thais biserialis, "Morula lugubris" = Mexacanthina lugubris, Purpura pansa
"Murexiella cf. lappa" = Favartia lappa Broderip 1833 murex snail
Thais planospira murex snail
Thais biserialis de Blainville 1832 murex snail
"Morula lugubris" = Mexacanthina lugubris Sowerby I 1822 murex snail
Purpura pansa murex snail
 Neogastropoda - Conidae
Conus princeps cone shell
Conus fergusoni Sowerby 1875 cone shell
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell
 Neogastropoda - Columbellidae
Columbella sp. Lamarck 1799 snail
Mitrella guttata Sowerby 1832 snail
 Neogastropoda - Fasciolariidae
Latirus sp. Monfort 1810 snail
 Neogastropoda - Mitridae
Mitra rupicola mitre shell
 Sorbeoconcha - Bursidae
"Bursa californica" = Crossata ventricosa
"Bursa californica" = Crossata ventricosa Broderip 1833 frog shell
 Sorbeoconcha - Triviidae
"Trivia solandri" = Pusula solandri
"Trivia solandri" = Pusula solandri Sowerby 1832 snail
 Sorbeoconcha - Cypraeidae
"Cypraea cernica" = Erosaria cernica
"Cypraea cernica" = Erosaria cernica Sowerby 1870 cowry
 Sorbeoconcha - Eratoidae
"Erato columbella" = Hespererato columbella
"Erato columbella" = Hespererato columbella Menke 1847 snail
 Sorbeoconcha - Vermetidae
Dendropoma lituella Morch 1861 worm shell
Petaloconchus sp. Lea 1843 worm shell
"Petaloconchus cf. montereyensis" = Petaloconchus compactus Carpenter 1864 worm shell
 Sorbeoconcha - Naticidae
Sinum sp. Röding 1798 moon snail
 Cerithioidea - Cerithiidae
Bittium sp. Gray 1847 cerith snail
 Trochoidea - Tegulidae
"Tegula eiseni" = Agathistoma eiseni
"Tegula eiseni" = Agathistoma eiseni Jordan 1936 snail
 Trochoidea - Trochidae
"Tegula gallina" = Chlorostoma gallina, "Norrisia norrisi" = Norrisia norrisii
"Tegula gallina" = Chlorostoma gallina Forbes 1850 top snail
"Norrisia norrisi" = Norrisia norrisii Sowerby I 1838 top snail
 Trochoidea - Turbinidae
"Homalopoma luridum" = Homalopoma (Homalopoma) luridum
"Homalopoma luridum" = Homalopoma (Homalopoma) luridum Dall 1885 snail
 Trochoidea - Phasianellidae
Tricolia sp. Risso 1826 snail
 Lepetellida - Scissurellidae
Sinezona rimuloides Carpenter 1865 snail
 Lepetellida - Haliotidae
Haliotis fulgens Philippi 1845 abalone
subsp. guadalupensis
 Lepetellida - Fissurellidae
Fissurella volcano Reeve 1849 snail
 Patellida - Lottiidae
Lottia gigantea, "Collisella scabra" = Lottia scabra, "Collisella limatula" = Lottia limatula, "Collisella digitalis" = Lottia digitalis
Lottia gigantea Sowerby 1834 limpet
"Collisella scabra" = Lottia scabra Gould 1846 limpet
"Collisella limatula" = Lottia limatula Carpenter 1864 limpet
"Collisella digitalis" = Lottia digitalis Eschscholtz 1833 limpet
Polyplacophora
 Chitonida - Callistoplacidae
Nuttallina californica Reeve 1847 chiton
Callistochiton palmulatus Dall 1879 chiton
 Neoloricata - Ischnochitonidae
Lepidozona sp. Pilsbry 1892 chiton
Echinoidea
  -
Echinoidea indet. Leske 1778 sea urchin
 Cidaroida - Cidaridae
Eucidaris thouarsi pencil urchin
Astraea undosa
  -
"Astraea undosa" = Megastraea undosa
"Astraea undosa" = Megastraea undosa Wood 1828