Deadman Island - "Pliocene" [Timms Point Silt] (Pleistocene of the United States)

Where: Los Angeles County, California (33.7° N, 118.3° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Timms Point Silt Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• LITHOSTRATIGRAPHY: From what Arnold (1903) considered the "Pliocene" [=Timms Point Silt]: AGE: Middle Pleistocene (~0.6-0.4 Ma) based on current understanding of the Timms Point Silt. STRATIGRAPHIC RESOLUTION: List is exhaustive of the Timms Point Silt in a relatively small geographic area, so given stratigraphic resolution of formation.

• formation-level stratigraphic resolution

Environment/lithology: coastal; unlithified siltstone

• ENVIRONMENT: Not stated, but based on current understanding of the units likely collected the list represents mid- through outer shelf, siliciclastic depositional settings.
• SPECIFIC LITHOLOGY: Unknown, but based on likely collecting localities would have likely comprise silt. LITHIFICATION: Unknown, but based on likely collecting localities would have been unlithified.

Size classes: macrofossils, mesofossils, microfossils

Preservation: original aragonite, original calcite

Collected by R. Arnold; reposited in the CAS

• COLLECTOR: Multiple collectors including R. Arnold, M. Williamson, and others. REPOSITORY: Multiple repositories including CAS and LACMIP.

Primary reference: R. Arnold. 1903. The Paleontology and Stratigraphy of the Marine Pliocene and Pleistocene of San Pedro, California. Contributions to Biology from The Hopkins Seaside Laboratory 31 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 222665: authorized by Austin Hendy, entered by Austin Hendy on 11.10.2021, edited by Bethany Allen

Creative Commons license: CC0 (CC0)

Taxonomic list

• TAXONOMIC COVERAGE: Exhaustive for known taxa from this locality and stratigraphic unit. NOMENCLATURE: Antiquated, but resolved to species resolution.
Anthozoa
 Scleractinia - Caryophylliidae
Caryophyllia californica n. sp. Vaughan 1903 stony coral
Gastropoda
 Patellida - Lottiidae
"Acmaea insessa" = Lottia insessa
"Acmaea insessa" = Lottia insessa Hinds 1842 limpet
  - Neptuneidae
"Chrysodomus tabulatus" = Neptunea (Sulcosipho) tabulata
"Chrysodomus tabulatus" = Neptunea (Sulcosipho) tabulata Baird 1863 snail
 Trochoidea - Solariellidae
"Solariella peramabilis" = Minolia peramabilis
"Solariella peramabilis" = Minolia peramabilis Carpenter 1864 snail
 Trochoidea - Trochidae
Calliostoma canaliculatum Lightfoot 1786 top snail
Calliostoma tricolor Gabb 1865 top snail
"Chlorostoma brunneum" = Chlorostoma brunnea Philippi 1849 top snail
Chlorostoma montereyi Kiener 1850 top snail
 Trochoidea - Turbinidae
"Margarita pupilla" = Pupillaria pupilla
"Margarita pupilla" = Pupillaria pupilla Gould 1849 snail
 Seguenzioidea - Eucyclidae
"Solariella cidaris" = Cidarina cidaris, "Thalotia caffea" = Turcica caffea
"Solariella cidaris" = Cidarina cidaris Adams 1864 snail
"Thalotia caffea" = Turcica caffea Gabb 1865 snail
 Lepetellida - Fissurellidae
Puncturella galeata, "Puncturella cucullata" = Craniopsis cucullata
Puncturella galeata Gould 1846 puncturella
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella
 Sorbeoconcha - Procerithiidae
"Bittium asperum" = Lirobittium asperum
"Bittium asperum" = Lirobittium asperum Gabb 1861 snail
 Neogastropoda - Clathurellidae
"Clathurella conradiana" = Crockerella conradiana
"Clathurella conradiana" = Crockerella conradiana Gabb 1866 snail
 Neogastropoda - Pseudomelatomidae
"Pleurotoma (Drillia) renaudi" = Rhodopetoma renaudi
"Pleurotoma (Drillia) renaudi" = Rhodopetoma renaudi Arnold 1903 snail
 Neogastropoda - Conidae
"Bela fidicula" = Propebela fidicula, "Conus californicus" = Californiconus californicus
"Bela fidicula" = Propebela fidicula Gould 1849 cone shell
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell
 Neogastropoda - Mangeliidae
Kurtzia arteaga Dall and Bartsch 1910 snail
 Neogastropoda - Borsoniidae
"Pleurotoma (Borsonia) dalli" = Borsonella angelana, "Pleurotoma (Borsonia) bartschi" = Borsonella bartschi, "Drillia merriami" = Borsonella merriami
"Pleurotoma (Borsonia) dalli" = Borsonella angelana Hanna 1924 snail
"Pleurotoma (Borsonia) bartschi" = Borsonella bartschi Arnold 1903 snail
"Drillia merriami" = Borsonella merriami Arnold 1903 snail
 Neogastropoda - Terebridae
"Terebra (Acus) simplex" = Neoterebra danai
"Terebra (Acus) simplex" = Neoterebra danai Berry 1958 auger snail
 Neogastropoda - Turridae
"Drillia torosa" = Pseudomelatoma torosa, "Taranis strongi" = Decollidrillia strongi
"Drillia torosa" = Pseudomelatoma torosa Gabb 1864 turrid
"Taranis strongi" = Decollidrillia strongi Arnold 1903 turrid
 Neogastropoda - Columbellidae
"Amphissa corrugata" = Amphissa columbiana, "Columbella (Astyris) gausapata carinata" = Mitrella gausapata
"Amphissa corrugata" = Amphissa columbiana Dall 1916 snail
"Columbella (Astyris) gausapata carinata" = Mitrella gausapata Gould 1850 snail
 Neogastropoda - Nassariidae
"Nassa mendica cooperi" = Hima cooperi, "Nassa californiana" = Caesia californiana, "Nassa perpinguis" = Caesia perpinguis, "Nassa fossata" = Caesia fossatus
"Nassa mendica cooperi" = Hima cooperi Forbes 1852 snail
"Nassa californiana" = Caesia californiana Conrad 1856 snail
"Nassa perpinguis" = Caesia perpinguis Hinds 1844 snail
"Nassa fossata" = Caesia fossatus Gould 1849 snail
 Neogastropoda - Fasciolariidae
"Fusus barbarensis" = Barbarofusus barbarensis
"Fusus barbarensis" = Barbarofusus barbarensis Trask 1855 snail
 Neogastropoda - Buccinidae
"Chrysodomus rectirostris" = Exilioidea rectirostris, Chrysodomus sp.
"Chrysodomus rectirostris" = Exilioidea rectirostris Carpenter 1864 true whelk
Chrysodomus sp. Swainson 1840 true whelk
 Neogastropoda - Muricidae
"Trophon (Boreotrophon) tenuisculpta" = Ocinebrina tenuisculpta, "Ocinebra interfossa" = Paciocinebrina interfossa, "Ocinebra lurida cancellina" = Tritonalia lurida cancellina, "Ocinebra lurida aspera" = Tritonalia lurida aspera, Boreotrophon pedroana, "Trophon stuarti" = Boreotrophon stuarti, Boreotrophon apolyonis, Boreotrophon multicostatus
"Trophon (Boreotrophon) tenuisculpta" = Ocinebrina tenuisculpta Carpenter 1866 murex snail
"Ocinebra interfossa" = Paciocinebrina interfossa Carpenter 1864 murex snail
"Ocinebra lurida cancellina" = Tritonalia lurida cancellina Philippi 1845 murex snail
"Ocinebra lurida aspera" = Tritonalia lurida aspera Baird 1863 murex snail
Boreotrophon pedroana Arnold 1903 murex snail
"Trophon stuarti" = Boreotrophon stuarti Smith 1880 murex snail
Boreotrophon apolyonis Dall 1919 murex snail
Boreotrophon multicostatus Eschscholtz 1829 murex snail
 Neogastropoda - Olividae
"Olivella pedroana" = Callianax pedroana, "Olivella biplicata" = Callianax biplicata, Olivella intorta
"Olivella pedroana" = Callianax pedroana Conrad 1855 olive snail
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail
Olivella intorta Carpenter 1856 olive snail
 Sorbeoconcha - Ranellidae
"Priene oregonensis" = Fusitriton oregonensis
"Priene oregonensis" = Fusitriton oregonensis Redfield 1846 triton shell
 Sorbeoconcha - Naticidae
"Natica clausa" = Cryptonatica affinis, "Neverita recluziana" = Glossaulax reclusiana
"Natica clausa" = Cryptonatica affinis Gmelin 1791 moon snail
"Neverita recluziana" = Glossaulax reclusiana Deshayes 1839 moon snail
 Sorbeoconcha - Hipponicidae
"Hipponyx antiquatus" = Hipponix antiquatus
"Hipponyx antiquatus" = Hipponix antiquatus Linnaeus 1767 hoof shell
 Sorbeoconcha - Littorinidae
"Littorina planaxis" = Littorina (Neritrema) keenae
"Littorina planaxis" = Littorina (Neritrema) keenae Rosewater 1978 periwinkle
 Cerithioidea - Turritellidae
Turritella pedroensis Applin 1920 turret shell
Turritella cooperi Carpenter 1864 turret shell
 Cerithioidea - Potamididae
"Cerithidea californica" = Cerithideopsis californica
"Cerithidea californica" = Cerithideopsis californica Haldeman 1840 horn snail
 Pseudomelanoidea - Pseudomelaniidae
"Pleurotoma (Spirotropis) smithi" = Antiplanes thalea, "Pleurotoma perversa" = Spirotropis (Antiplanes) perversa
"Pleurotoma (Spirotropis) smithi" = Antiplanes thalea Dall 1902 snail
"Pleurotoma perversa" = Spirotropis (Antiplanes) perversa Gabb 1865 snail
 Epitonioidea - Epitoniidae
"Scala indianorum" = Hirtoscala indianorum
"Scala indianorum" = Hirtoscala indianorum Carpenter 1864 wentletrap
 Opisthobranchiata - Cylichnidae
"Tornatina eximia" = Acteocina cerealis
"Tornatina eximia" = Acteocina cerealis Gould 1853 barrel-bubble
Bivalvia
 Nuculida - Nuculidae
"Nucula (Acila) castrensis" = Acila (Truncacila) castrensis
"Nucula (Acila) castrensis" = Acila (Truncacila) castrensis Hinds 1843 divaricate nutclam
 Nuculanida - Nuculanidae
"Leda taphria" = Saccella taphria
"Leda taphria" = Saccella taphria Dall 1896 pointed nut clam
 Pectinida - Pectinoidae
"Pecten (Chlamys) hastatus" = Chlamys hastata, "Pecten (Chlamys) hericeus" = Chlamys hastata, "Pecten (Chlamys) jordani n. sp." = Chlamys rubida, "Pecten (Patinopecten) caurinus" = Patinopecten caurinus, Leopecten diegensis
"Pecten (Chlamys) hastatus" = Chlamys hastata Sowerby 1842 scallop
"Pecten (Chlamys) hericeus" = Chlamys hastata Sowerby 1842 scallop
"Pecten (Chlamys) jordani n. sp." = Chlamys rubida Hinds 1845 scallop
"Pecten (Patinopecten) caurinus" = Patinopecten caurinus Gould 1850 scallop
Leopecten diegensis Dall 1898 scallop
 Carditida - Carditidae
"Venericardia barbarensis" = Hippocampocardia barbarensis, "Venericardia ventricosa" = Coanicardita ventricosa
"Venericardia barbarensis" = Hippocampocardia barbarensis Stearns 1890 clam
"Venericardia ventricosa" = Coanicardita ventricosa Gould 1850 clam
 Lucinida - Thyasiridae
"Thyasira gouldii" = Thyasira flexuosa, "Thyasira bisecta" = Conchocele bisecta
"Thyasira gouldii" = Thyasira flexuosa Montagu 1803 clam
"Thyasira bisecta" = Conchocele bisecta Conrad 1849 clam
 Lucinida - Lucinidae
Lucinoma annulatum, "Lucina californica" = Epilucina californica
Lucinoma annulatum Reeve 1850 clam
"Lucina californica" = Epilucina californica Conrad 1837 clam
 Solenida - Solenidae
Solen sicarius Gould 1850 clam
 Hiatellida - Hiatellidae
Panopea generosa Gould 1850 clam
Panomya ampla Dall 1898 clam
 Cardiida - Lasaeidae
"Kellia laperousii" = Kellia suborbicularis
"Kellia laperousii" = Kellia suborbicularis Montague 1803 kelly clam
 Cardiida - Cardiidae
"Protocardia centifilosum" = Nemocardium (Keenaea) centifilosum
"Protocardia centifilosum" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
 Cardiida - Semelidae
Cumingia californica Conrad 1837 clam
 Cardiida - Tellinidae
"Macoma calcarea" = Macoma (Macoma) calcarea, "Macoma inquinata" = Macoma (Macoma) inquinata
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam
"Macoma inquinata" = Macoma (Macoma) inquinata Deshayes 1855 tellin clam
 Cardiida - Veneridae
"Venus (Chione) simillima" = Chione undatella, Callista subdiaphana
"Venus (Chione) simillima" = Chione undatella Sowerby I 1835 venus clam
Callista subdiaphana Carpenter 1864 venus clam
 Cardiida - Chamidae
Chama arcana Bernard 1976 jewel box
 Pholadida - Pholadidae
"Pholadidea penita" = Penitella penita
"Pholadidea penita" = Penitella penita Conrad 1837 clam
 Pholadida - Corbulidae
"Corbula luteola" = Caryocorbula luteola
"Corbula luteola" = Caryocorbula luteola Carpenter 1864 clam
 Thraciida - Thraciidae
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides
"Thracia trapezoides" = Thracia (Homoeodesma) trapezoides Conrad 1849 clam
 Pandorida - Lyonsiidae
Lyonsia californica Conrad 1837 clam
Mytilimeria nuttalli Conrad 1837 clam
Polyplacophora
 Chitonida - Acanthochitonidae
Cryptochiton stelleri Middendorf 1847 chiton
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
Rhynchonellata
 Terebratulida - Laqueidae
 Terebratulida - Terebrataliidae
Terebratalia smithi Arnold 1903