Woodring Loc. 53a - San Pedro [Lomita Marl] (Pleistocene of the United States)

Also known as USGS 12220; W12-30

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

• coordinate estimated from map

• outcrop-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: From algal bed at level of floor at northwest end of quarry.

• bed-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 in 1930; reposited in the USGS, USNM

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

• COLLECTOR: W. Woodring, 1930. REPOSITORY: USGS, now Smithsonian.

Primary reference: W. P. Woodring, M. N. Bramlette, and W. S. W. Kew. 1946. Geology and Paleontology of Palos Verdes Hills, California. US Geological Survey Professional Paper 207:1-145 [M. Uhen/M. Shalap/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 202968: authorized by Austin Hendy, entered by Austin Hendy on 24.07.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Updated to 1960s era, so somewhat antiquated but standardized and typically resolved to species resolution.
Gastropoda
 Sorbeoconcha - Cerithiopsidae
Cerithiopsis sp. Hanley 1849 snail
 Sorbeoconcha - Bursidae
"Bursa californica" = Crossata ventricosa
"Bursa californica" = Crossata ventricosa Broderip 1833 frog shell
 Neogastropoda - Muricidae
Maxwellia gemma, "Ocinebra coryphaena" = Ocinebrina coryphaena
Maxwellia gemma Sowerby 1879 murex snail
"Ocinebra coryphaena" = Ocinebrina coryphaena Woodring 1946 murex snail
 Neogastropoda - Pseudolividae
Macron aethiops Reeve 1847 snail
 Neogastropoda - Nassariidae
""Nassa" insculpta" = Hima insculpta
""Nassa" insculpta" = Hima insculpta Carpenter 1864 snail
 Neogastropoda - Buccinidae
"Neptunea tabulata" = Neptunea (Sulcosipho) tabulata, "Kelletia kelleti" = Kelletia kelletii
"Neptunea tabulata" = Neptunea (Sulcosipho) tabulata Baird 1863 true whelk
"Kelletia kelleti" = Kelletia kelletii Forbes 1852 true whelk
 Neogastropoda -
"Harfordia monksae" = Harfordia robusta
"Harfordia monksae" = Harfordia robusta Trask 1855 snail
 Sorbeoconcha - Naticidae
"Neverita reclusiana" = Glossaulax reclusiana, "Euspira lewisi" = Euspira lewisii
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
"Euspira lewisi" = Euspira lewisii Gould 1847 moon snail
 Sorbeoconcha - Barleeiidae
Amphithalamus inclusus Lozouet 1998 snail
 Sorbeoconcha - Rissoidae
"Rissoina aequisculpta" = Alvinia aequisculpta, Rissoina kelseyi
"Rissoina aequisculpta" = Alvinia aequisculpta Keep 1887 snail
Rissoina kelseyi Dall and Bartsch 1902 snail
 Sorbeoconcha - Littorinidae
"Lacuna variegata" = Lacuna (Epheria) variegata
"Lacuna variegata" = Lacuna (Epheria) variegata Carpenter 1864 periwinkle
 Trochoidea - Turbinidae
"Pachypoma gibberosum" = Pomaulax gibberosa, "Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum
"Pachypoma gibberosum" = Pomaulax gibberosa Dillwyn 1817 red turban
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum Dall 1885 snail
 Trochoidea - Trochidae
"Tegula gallina" = Chlorostoma gallina
"Tegula gallina" = Chlorostoma gallina Forbes 1850 top snail
Bivalvia
 Cardiida - Veneridae
"Antigona fordi" = Globivenus fordii
"Antigona fordi" = Globivenus fordii Yates 1890 venus clam
 Carditida - Crassatellidae
"Eucrassatella fluctuata" = Hybolophus fluctuatus
"Eucrassatella fluctuata" = Hybolophus fluctuatus Carpenter 1864 clam
 Carditida - Carditidae
"Cyclocardia occidentalis" = Coanicardita occidentalis
"Cyclocardia occidentalis" = Coanicardita occidentalis Conrad 1855 clam
Pomaulax undosus
  -
"Pomaulax undosus" = Megastraea undosa
"Pomaulax undosus" = Megastraea undosa Wood 1828
Megastraea turbanica
  -
"Pomaulax petrothauma" = Megastraea turbanica
"Pomaulax petrothauma" = Megastraea turbanica Dall 1900