3rd street tunnel (Pliocene of the United States)

Also known as Third Street Tunnel

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

Malacostraca
 Decapoda - Ocypodidae
Uca hamlini3 Rathbun 1926 fiddler crab
Bivalvia
 Arcida - Arcidae
"Arca multicostata" = Anadara multicostata1
"Arca multicostata" = Anadara multicostata1 Sowerby 1833 ark
 Pectinida - Pectinoidae
"Pecten (Lyropecten) cerrosensis" = Nodipecten cerrosensis4, Pecten pedroanus1, "Pecten latiauratus" = Leptopecten latiauratus1, "Pecten stearnsii" = Flabellipecten stearnsii1, "Pecten opuntia" = Chlamys opuntia1
"Pecten (Lyropecten) cerrosensis" = Nodipecten cerrosensis4 Gabb 1869 scallop
Pecten pedroanus1 scallop
"abundant"
"Pecten latiauratus" = Leptopecten latiauratus1 Conrad 1837 scallop
"Pecten stearnsii" = Flabellipecten stearnsii1 Dall 1878 scallop
"Pecten opuntia" = Chlamys opuntia1 Dall 1898 scallop
 Pectinida - Limidae
"Lima hamlini" = Acesta (Acesta) hamlini1
"Lima hamlini" = Acesta (Acesta) hamlini1 Gabb 1869 file clam
 Ostreida - Ostreidae
"Ostrea vespertina" = Dendostrea vespertina4
"Ostrea vespertina" = Dendostrea vespertina4 Conrad 1854 oyster
 Carditida - Crassatellidae
"Crassatellites sp." = Crassatella4
"Crassatellites sp." = Crassatella4 Lamarck 1799 clam
 Cardiida - Tellinidae
Macoma sp.1 Leach 1819 tellin clam
 Carditoidea -
Carditoidea indet.1 Fleming 1820 clam
"Carditoid sp."
Gastropoda
 Neogastropoda - Buccinidae
Buccinum sp.1 Linnaeus 1758 true whelk
Nassa hamlini n. sp.1 Arnold 1907 true whelk
 Neogastropoda - Turridae
"Pleurotoma sp." = Turris1
"Pleurotoma sp." = Turris1 Röding 1798 turrid
 Naticoidea - Naticidae
"Neverita recluziana" = Glossaulax reclusiana1
"Neverita recluziana" = Glossaulax reclusiana1 Deshayes 1839 moon snail
 Tonnoidea - Ranellidae
Priene oregonensis1 triton shell
as Priene oregonensis var. angelensis new variety
 Fissurelloidea - Fissurellidae
"Fissuridea murina" = Diodora1
"Fissuridea murina" = Diodora1 snail
Actinopteri
 Elopiformes - Elopidae
Ectasis proriger n. gen. n. sp.2
Ectasis proriger n. gen. n. sp.2 Jordan and Gilbert 1919
Aves
 Charadriiformes - Panalcidae
Mancalla californiensis n. sp. Lucas 1901 auk
probably "bird bones" of Arnold 1907