SDSNH loc. 4521, Road Cut along Moulton Parkway (Miocene of the United States)

Also known as SDSNH 4521A, LH-1 and LH-4 of Finger 1988, 1992

Where: Orange County, California (33.6° N, 117.7° W: paleocoordinates 32.6° N, 111.5° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Saddleback Mountain Limestone Member (Monterey Formation), Early/Lower Miocene (23.0 - 16.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; poorly lithified, calcareous sandstone and marl

Size classes: macrofossils, mesofossils, microfossils

Preservation: mold/impression, replaced with silica

Primary reference: C. J. Stadum and K. L. Finger. 2016. Paleontology and stratigraphy of the Miocene Saddleback Valley Limestone, Orange County, Southern California. Contributions in Science, Natural History Museum of Los Angeles County 524:31-49 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 196169: authorized by Jonathan Marcot, entered by Jonathan Marcot on 06.09.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Foraminifera
 Rotalioidea - Elphidiidae
 Buliminoidea - Buliminidae
 Lituolida - Lituolidae
 Rotaliina - Bolivinidae
 Rotaliina - Islandiellidae
 Discorbacea - Bagginidae
  -
Globothalamea
 Rotaliida - Nonionidae
 Rotaliida - Discorbidae
Nodosariata
 Nodosariida - Nodosariidae
Gnathostomata
  -
Chondrichthyes indet. Huxley 1880 cartilaginous fish
Echinoidea
 Cidaroida - Cidaridae
"Eucidaris cf. thouarsii" = Cidaris thouarsii
"Eucidaris cf. thouarsii" = Cidaris thouarsii Valencienncs 1846 pencil urchin
 Clypeasteroida - Echinarachniidae
Vaquerosella merriami Anderson 1905 sand dollar
Vaquerosella cf. andersoni Clark and Twitchell 1915 sand dollar
Gymnolaemata
 Cheilostomata - Electridae
 Cheilostomata - Gemelliporellidae
Bivalvia
 Pectinida - Pectinoidae
"Amusium lompocensis" = Amussium lompocensis Arnold 1906 scallop
Lyropecten crassicardo Conrad 1856 scallop
Amussiopecten vanvlecki Arnold 1908 scallop
 Ostreida - Ostreidae
Crassostrea titan Conrad 1853 oyster
 Mytilida - Mytilidae
Mytilus cf. coalingensis Arnold 1909 mussel
Crenomytilus expansus Arnold 1907 mussel
Gastropoda
 Neogastropoda - Muricidae
"Trophon kernensis" = Trophon (Austrotrophon) kernensis Anderson 1905 murex snail
Forreria bartoni Arnold 1909 murex snail
Thecostraca
 Balanomorpha - Balanidae
Megabalanus tintinnabulum Linnaeus 1758 barnacle
 Ichnofossils -
Palaeophycus sp. Hall 1847