Second St & Hilltop Quarry - calcareous beds [Lomita Marl] (Pleistocene of the United States)

Where: California (33.8° N, 118.3° W: paleocoordinates 33.8° N, 118.3° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Lomita Marl Formation, Middle Pleistocene (0.8 - 0.1 Ma)

• LITHOSTRATIGRAPHY: From the Lomita Marl, which is locally overlain by the Timms Point Silt and San Pedro Sand. AGE: Early Pleistocene in Woodring et al. (1946) and Valentine PhD, but is now regarded as Middle Pleistocene [A. Hendy]. STRATIGRAPHIC POSITION: List is representation of formation at two distinct sections.

• formation-level stratigraphic resolution

Environment/lithology: offshore; unlithified, sandy, calcareous marl

• ENVIRONMENT: Typically containing and offshore fauna.
• SPECIFIC LITHOLOGY: Not listed, but generally a calcareous sandy marl. LITHIFICATION: Not stated, but typically unlithified to slightly poorly-lithified.

Size classes: macrofossils, mesofossils

Preservation: original aragonite, original calcite

Collected by W. Woodring; reposited in the LACM

Collection methods: surface (float), surface (in situ)

• COLLECTOR: W. Woodring, presumably late 1920s. REPOSITORY: Probably at NHMLA.

Primary reference: A. Clark. 1931. The cool-water Timms Point Pleistocene horizon at San Pedro, California. Transactions of the San Diego Society of Natural History 7:25-42 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 203108: authorized by Austin Hendy, entered by Austin Hendy on 26.07.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Comprehensive for molluscs, but only including species found in common with Timms Point Silt. NOMENCLATURE: Original identifications by A. Clark and updated by Valentine (1950s).
Polychaeta
  -
Scaphopoda
 Gadilida - Gadilidae
"Cadulus fusiformis" = Gadila aberrans
"Cadulus fusiformis" = Gadila aberrans Whiteaves 1887 tusk shell
 Dentaliida - Dentaliidae
Dentalium neohexagonum Sharp and Pilsbry 1897 tusk shell
Gastropoda
 Neotaenioglossa - Calyptraeidae
Crepipatella lingulata Gould 1846 slipper shell
Crepidula nummaria Gould 1846 slipper shell
Crepidula adunca Sowerby 1824 slipper shell
 Cerithioidea - Cerithiidae
Elassum californicum Dall and Bartsch 1901 cerith snail
 Cerithioidea - Turritellidae
Turritella pedroensis Applin 1920 turret shell
Turritella cooperi Carpenter 1864 turret shell
 Pseudomelanoidea - Pseudomelaniidae
"Antiplanes perversa" = Antiplanes catalinae
"Antiplanes perversa" = Antiplanes catalinae Raymond 1904 snail
 Sorbeoconcha - Naticidae
"Euspira lewisi" = Euspira lewisii, "Neverita reclusiana" = Glossaulax reclusiana, "Natica clausa" = Cryptonatica affinis
"Euspira lewisi" = Euspira lewisii Gould 1847 moon snail
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
"Natica clausa" = Cryptonatica affinis Gmelin 1791 moon snail
 Sorbeoconcha - Barleeiidae
"Rissoina coronadoensis" = Barleeia coronadoensis, Barleeia haliotiphila, "Diala marmorea" = Pseudodiala acuta
"Rissoina coronadoensis" = Barleeia coronadoensis Bartsch 1920 snail
Barleeia haliotiphila Carpenter 1864 snail
"Diala marmorea" = Pseudodiala acuta Carpenter 1864 snail
 Sorbeoconcha - Ranellidae
Fusitriton oregonensis Redfield 1846 triton shell
 Neogastropoda - Olividae
"Olivella pedroana" = Callianax pedroana, "Olivella biplicata" = Callianax biplicata
"Olivella pedroana" = Callianax pedroana Conrad 1855 olive snail
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail
 Neogastropoda - Cancellariidae
"Massyla gracilior" = Admete gracilior
"Massyla gracilior" = Admete gracilior Gabb 1869 admete
 Neogastropoda - Mitridae
"Mitra idae" = Mitra (Atrimitra) idae
"Mitra idae" = Mitra (Atrimitra) idae Melville 1893 mitre shell
 Neogastropoda - Fasciolariidae
Barbarofusus barbarensis Trask 1855 snail
 Neogastropoda - Siphonaliidae
Calicantharus fortis Carpenter 1866 snail
 Neogastropoda - Buccinidae
"Neptunea tabulata" = Neptunea (Sulcosipho) tabulata
"Neptunea tabulata" = Neptunea (Sulcosipho) tabulata Baird 1863 true whelk
 Neogastropoda - Nassariidae
""Nassa" perpinguis" = Caesia perpinguis, ""Nassa" cooperi" = Hima cooperi, ""Nassa" mendica" = Hima mendica
""Nassa" perpinguis" = Caesia perpinguis Hinds 1844 snail
""Nassa" cooperi" = Hima cooperi Forbes 1852 snail
""Nassa" mendica" = Hima mendica Gould 1849 snail
 Neogastropoda - Columbellidae
Mitrella tuberosa Carpenter 1864 snail
Mitrella gausapata Gould 1850 snail
SUBSPECIES: Mitrella carinata gausapata
Amphissa reticulata Dall 1916 snail
 Neogastropoda - Muricidae
"Ocinebra barbarensis" = Paciocinebrina barbarensis, Boreotrophon stuarti, "Boreotrophon pedroanus" = Boreotrophon pedroana
"Ocinebra barbarensis" = Paciocinebrina barbarensis Gabb 1865 murex snail
Boreotrophon stuarti Smith 1880 murex snail
"Boreotrophon pedroanus" = Boreotrophon pedroana Arnold 1903 murex snail
SUBSPECIES: Boreotrophon pedroensis praecursor
 Neogastropoda - Cystiscidae
"Cypraeolina pyriformis" = Granulina margaritula
"Cypraeolina pyriformis" = Granulina margaritula Carpenter 1857 snail
 Neogastropoda - Pseudomelatomidae
"Pseudomelatoma moesta" = Pseudomelatoma penicillata
"Pseudomelatoma moesta" = Pseudomelatoma penicillata Carpenter 1864 snail
 Neogastropoda - Conidae
""Lora" tabulata" = Propebela tabulata, ""Lora" sp." = Oenopota, "Conus californicus" = Californiconus californicus
""Lora" tabulata" = Propebela tabulata Carpenter 1864 cone shell
""Lora" sp." = Oenopota Mörch 1852 cone shell
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell
 Neogastropoda - Mangeliidae
""Mangelia" cetolaca" = Mangilia oldroydi
""Mangelia" cetolaca" = Mangilia oldroydi Arnold 1903 snail
 Neogastropoda - Turridae
"Taranis strongi" = Decollidrillia strongi
"Taranis strongi" = Decollidrillia strongi Arnold 1903 turrid
 Neogastropoda - Clathurellidae
"Clathurella crystallina" = Crockerella crystallina
"Clathurella crystallina" = Crockerella crystallina Gabb 1865 snail
 Neogastropoda - Borsoniidae
"Borsonia bartschi" = Borsonella bartschi
"Borsonia bartschi" = Borsonella bartschi Arnold 1903 snail
 Sorbeoconcha - Procerithiidae
"Bittium armillatum" = Lirobittium armillatum, "Bittium asperum" = Lirobittium asperum, "Bittium rugatum" = Lirobittium rugatum, "Bittium catalinensis" = Lirobittium catalinensis
"Bittium armillatum" = Lirobittium armillatum Carpenter 1864 snail
"Bittium asperum" = Lirobittium asperum Gabb 1861 snail
"Bittium rugatum" = Lirobittium rugatum Carpenter 1866 snail
INCLUDES: Bittium rugatum giganteum
"Bittium catalinensis" = Lirobittium catalinensis Bartsch 1907 snail
SUBSPECIES: Bittium armillatum catalinensis
 Trochoidea - Trochidae
Calliostoma sp., Calliostoma ligatum, "Calliostoma doliarium" = Calliostoma canaliculatum, "Pupillaria optabilis" = Lirularia optabilis, "Tegula montereyi" = Chlorostoma montereyi
Calliostoma sp. Swainson 1840 top snail
Calliostoma ligatum Gould 1849 top snail
"Calliostoma doliarium" = Calliostoma canaliculatum Lightfoot 1786 top snail
"Pupillaria optabilis" = Lirularia optabilis Carpenter 1864 top snail
"Tegula montereyi" = Chlorostoma montereyi Kiener 1850 top snail
 Trochoidea - Phasianellidae
"Tricolia pulloides" = Eulithidium pulloides
"Tricolia pulloides" = Eulithidium pulloides Carpenter 1865 snail
 Trochoidea - Turbinidae
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum, "Homalopoma bacula" = Homalopoma (Homalopoma) baculum, Pupillaria pupilla, "Pachypoma gibberosum" = Pomaulax gibberosa
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum Dall 1885 snail
"Homalopoma bacula" = Homalopoma (Homalopoma) baculum Carpenter 1864 snail
Pupillaria pupilla Gould 1849 snail
"Pachypoma gibberosum" = Pomaulax gibberosa Dillwyn 1817 red turban
 Lepetellida - Fissurellidae
Puncturella galeata Gould 1846 puncturella
 Opisthobranchia - Cylichnidae
Acteocina culcitella, "Coleophysis harpa" = Acteocina harpa
Acteocina culcitella Gould 1853 barrel-bubble
"Coleophysis harpa" = Acteocina harpa Dall 1871 barrel-bubble
 Patellida - Lottiidae
"Acmaea insessa" = Lottia insessa
"Acmaea insessa" = Lottia insessa Hinds 1842 limpet
Bivalvia
 Nuculanida - Nuculanidae
"Nuculana taphria" = Saccella taphria, Nuculana minuta
"Nuculana taphria" = Saccella taphria Dall 1896 pointed nut clam
Nuculana minuta Müller 1776 pointed nut clam
SUBSPECIES: Nuculana minuta praecursor
 Nuculanida - Yoldiidae
"Yoldia scissurata" = Yoldia (Cnesterium) aeolica
"Yoldia scissurata" = Yoldia (Cnesterium) aeolica Valenciennes 1846 clam
 Nuculida - Nuculidae
"Acila castrensis" = Acila (Truncacila) castrensis
"Acila castrensis" = Acila (Truncacila) castrensis Hinds 1843 divaricate nutclam
 Poromyida - Verticordiidae
"Verticordia ornata" = Trigonulina ornata
"Verticordia ornata" = Trigonulina ornata d'Orbigny 1842 clam
 Poromyida - Cuspidariidae
Cardiomya pectinata Carpenter 1864 clam
 Hiatellida - Hiatellidae
"Panope generosa" = Panopea generosa
"Panope generosa" = Panopea generosa Gould 1850 clam
 Solenida - Solenidae
Solen sicarius Gould 1850 clam
 Cardiida - Chamidae
"Pseudochama exogyra" = Chama exogyra
"Pseudochama exogyra" = Chama exogyra Conrad 1837 jewel box
 Cardiida - Ungulinidae
"Taras orbellus" = Diplodonta orbella
"Taras orbellus" = Diplodonta orbella Gould 1851 clam
 Cardiida - Veneridae
"Psephidia ovalis" = Nutricola ovalis Dall 1902 venus clam
Saxidomus nuttalli Conrad 1837 venus clam
Humilaria perlaminosa Conrad 1855 venus clam
 Cardiida - Tellinidae
"Macoma calcarea" = Macoma (Macoma) calcarea, "Tellina buttoni" = Ameritella modesta
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam
"Tellina buttoni" = Ameritella modesta Carpenter 1864 tellin clam
 Cardiida - Semelidae
"Semele incongrua" = Semele (Amphidesma) venusta
"Semele incongrua" = Semele (Amphidesma) venusta Reeve 1853 clam
 Cardiida - Cardiidae
"Nemocardium centifilosum" = Nemocardium (Keenaea) centifilosum, "Clinocardium nuttalli" = Clinocardium (Clinocardium) nuttallii, "Trachycardium quadragenarium" = Dallocardia quadragenarium
"Nemocardium centifilosum" = Nemocardium (Keenaea) centifilosum Carpenter 1864 cockle
"Clinocardium nuttalli" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle
"Trachycardium quadragenarium" = Dallocardia quadragenarium Conrad 1837 cockle
 Lucinida - Thyasiridae
"Thyasira gouldi" = Thyasira flexuosa, "Axinopsis viridis" = Axinopsida serricata
"Thyasira gouldi" = Thyasira flexuosa Montagu 1803 clam
"Axinopsis viridis" = Axinopsida serricata Carpenter 1864 clam
 Lucinida - Lucinidae
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 clam
Parvilucina tenuisculpta Carpenter 1864 clam
Epilucina californica Conrad 1837 clam
 Carditida - Carditidae
Cyclocardia sp. Conrad 1867 clam
 Mytilida - Crenellidae
"Crenella columbiana" = Solamen columbianum
"Crenella columbiana" = Solamen columbianum Dall 1897 crenella
 Pectinida - Pectinoidae
"Chlamys hastatus" = Chlamys hastata, Chlamys rubida, "Pecten stearnsi" = Leopecten stearnsii
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
Chlamys rubida Hinds 1845 scallop
SUBSPECIES: Chlamys islandicus hindsi
"Pecten stearnsi" = Leopecten stearnsii Dall 1878 scallop
 Pectinida - Anomiidae
"Pododesmus macrochisma" = Pododesmus (Monia) macrochisma
"Pododesmus macrochisma" = Pododesmus (Monia) macrochisma Deshayes 1839 scallop