Also known as Garapito Creek; Sylvia Park
Where: Los Angeles County, California (34.1° N, 118.6° W: paleocoordinates 37.9° N, 99.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Coal Canyon Formation, Thanetian (59.2 - 56.0 Ma)
• "Martinez Provincial Stage... late Paleocene" (Coal Canyon Formation in Squires, 1990)
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; lithified, concretionary, calcareous siltstone
Size class: macrofossils
Preservation: mold/impression
Collected by J. Alderson; reposited in the LACM
Primary reference: R. L. Squires. 1980. A new species of brachyuran from the Paleocene of California. Journal of Paleontology 54(2):472-476 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 90072: authorized by John Alroy, entered by John Alroy on 06.07.2009, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Schizaster (Schizaster) martinezensis Kew 1920 heart urchin | |
Gastropoda | |
Turritella infragranulata Gabb 1864 turret shell | |
? Vermetidae indet. Rafinesque 1815 worm shell | |
Brachysphingus sinuatus Gabb 1869 true whelk | |
Crommium cf. pinyonensis Dickerson 1914 moon snail | |
Bivalvia | |
"Venericardia (Glyptoactis) keenae" = Glyptoactis (Claibornicardia) keenae
"Venericardia (Glyptoactis) keenae" = Glyptoactis (Claibornicardia) keenae Verástegui 1953 clam | |
Pholadomya nasuta Gabb 1864 clam | |
? Solen sp. Linnaeus 1758 clam | |
Tellina sp. Linnaeus 1758 tellin clam | |
Ostrea sp. Linnaeus 1758 oyster | |
Malacostraca | |
Cyclocorystes aldersoni n. sp.
Cyclocorystes aldersoni n. sp. Squires 1980 crab |