3rd Street tunnel (Pliocene of the United States)

Also known as Third Street Tunnel; USGS loc. 3426

Where: Los Angeles County, California (34.1° N, 118.3° W: paleocoordinates 33.8° N, 117.0° W)

• coordinate estimated from map

When: Fernando Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)

• age from Smith, 2011; originally late Miocene or early Pliocene, probably the former

Environment/lithology: coastal; gray, blue, argillaceous shale

• bluish-gray clayey shale

Size class: macrofossils

Collected in 1913; reposited in the LACM, USNM

• ... Homer Hamlin, city engineer of Los Angeles, California, to whom we are indebted for preserving the valuable paleontological material taken out of the Third Street tunnel, Los Angeles.

Primary reference: F. A. Lucas. 1901. A flightless auk, Mancalla californiensis, from the Miocene of California. Proceedings of the US National Museum 24(1245):133-134 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 120822: authorized by Mark Uhen, entered by Mark Uhen on 22.11.2011, edited by Samantha Yost and Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Caryophylliidae
? Stephanocyathus sp.6 Seguenza 1864 stony coral
"coral"
Bivalvia
  -
Bivalvia indet.6 Linnaeus 1758 clam
Bivalvia indet.6 Linnaeus 1758 clam
 Pectinida - Pectinoidae
"Pecten (Lyropecten) cerrosensis" = Lyropecten cerrosensis5 Gabb 1866 scallop
Hyalopecten (Delectopecten) aff. randolphi6 Dall 1897 scallop
"abundant"
 Pectinida - Limidae
"Lima hamlini n. sp." = Acesta (Acesta) hamlini2
"Lima hamlini n. sp." = Acesta (Acesta) hamlini2 Dall 1900 file clam
 Ostreida - Ostreidae
"Ostrea vespertina" = Dendostrea vespertina5
"Ostrea vespertina" = Dendostrea vespertina5 Conrad 1855 oyster
 Arcida - Arcidae
"Anadara camuloensis" = Larkinia camuloensis6
"Anadara camuloensis" = Larkinia camuloensis6 Osmont 1904 ark
 Carditida - Crassatellidae
"Crassatellites sp." = Crassatella5
"Crassatellites sp." = Crassatella5 Lamarck 1799 clam
 Lucinida - Lucinidae
Lucinoma aff. aequizonata6 Stearns 1890 clam
 Cardiida - Cardiidae
"Trachycardium cf. quadragenarium" = Dallocardia quadragenarium6
"Trachycardium cf. quadragenarium" = Dallocardia quadragenarium6 Conrad 1837 cockle
 Cardiida - Vesicomyidae
"Phreagena lasia n. gen. n. sp." = Archivesica gibbera6
"Phreagena lasia n. gen. n. sp." = Archivesica gibbera6 Crickmay 1929 clam
"Carditoid sp."
Gastropoda
  -
Gastropoda indet.6 Cuvier 1795 snail
 Sorbeoconcha - Naticidae
Naticidae indet.6 Guilding 1834 moon snail
 Sorbeoconcha - Ranellidae
Fusitriton aff. oregonensis6 Redfield 1846 triton shell
as Priene oregonensis var. angelensis new variety
 Neogastropoda - Nassariidae
"Nassa hamlini n. sp." = Nassarius (Catilon) hamlini1
"Nassa hamlini n. sp." = Nassarius (Catilon) hamlini1 Arnold 1907 snail
 Neogastropoda - Buccinidae
? Buccinum sp.6 Linnaeus 1758 true whelk
? Plicifusus sp.6 Dall 1902 true whelk
 Trochoidea - Turbinidae
Astraea cf. gradata6 Grant and Gale 1931 snail
Malacostraca
 Decapoda - Ocypodidae
Uca hamlini4 Rathbun 1926 fiddler crab
Aves
 Charadriiformes - Alcidae
Mancalla californiensis n. sp. Lucas 1901 auk
probably "bird bones" of Arnold 1907
Actinopteri
 Elopiformes - Elopidae
Ectasis proriger n. gen. n. sp.3
Ectasis proriger n. gen. n. sp.3 Jordan and Gilbert 1919