Also known as CAS 54135, CAS 54126, CAS 57867
Where: Sonoma County, California (38.3° N, 122.8° W: paleocoordinates 38.2° N, 120.4° W)
• coordinate estimated from map
When: Wilson Grove Formation, Tortonian to Tortonian (11.6 - 2.6 Ma)
• The data presented above indicate that the lower part (below the Roblar tuff) of the Wilson Grove Formation is late Miocene in age, between <9.27±0.06 Ma and >6.203±0.011 Ma, whereas in its upper part (above the Roblar tuff) an age range between 6.203±0.011 Ma to possibly as young as
•>2.6 Ma (late Pliocene; Powell and others, 2004) is deter- mined. This age range includes the “Jacalitos” CPMS for the lower unit to possibly the “San Joaquin” CPMS for the upper unit and overall overlaps the upper part of the Tortonian and lower part of the Messinian to the Piacenzian stages of the International Chronostratigraphic Chart (International Com- mission on Stratigraphy, 2012).
Environment/lithology: shallow subtidal; medium-grained, calcareous sandstone
Size class: macrofossils
Primary reference: C. L. Powell, R. W. Boessenecker, N. A. Smith, R. J. Fleck, S. J. Carlson, J. R. Allen, D. J. Long, A. M. Sarna-Wojcicki, and R. B. Guruswami-Naidu. 2019. Geology and Paleontology of the Late Miocene Wilson Grove Formation at Bloomfield Quarry, Sonoma County, California. Scientific Investigations Report 2019(5021):1-77 [M. Uhen/B. Shipps/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 188305: authorized by Mark Uhen, entered by Mark Uhen on 28.08.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Chondrichthyes | |
"Isurus oxyrhynchus" = Isurus oxyrinchus
"Isurus oxyrhynchus" = Isurus oxyrinchus Rafinesque 1810 mackerel shark | |
Cetorhinus maximus Gunner 1765 basking shark | |
Myliobatis californica eagle ray | |
Hexanchus griseus sixgill shark | |
Aves | |
Aves indet. Linnaeus 1758 bird | |
cf. Uria brodkorbi Howard 1981 auk
Mancallinae indet. Miller 1946 auk | |
Panalcidae indet. Smith 2011 shorebird | |
Mammalia | |
Sirenia indet. Illiger 1811 sirenian | |
Dusignathinae indet., Dusignathus santacruzensis, Gomphotaria pugnax, cf. Pontolis sp., cf. Imagotaria sp., Odobeninae indet.
Dusignathinae indet. Mitchell 1968 walrus
Dusignathus santacruzensis Kellogg 1927 walrus
Gomphotaria pugnax Barnes and Raschke 1991 walrus
cf. Pontolis sp. True 1905 walrus
cf. Imagotaria sp. Mitchell 1968 walrus
Odobeninae indet. Allen 1880 walrus | |
Mysticeti indet. Cope 1891 whale | |
Balaenopteridae indet. Gray 1864 rorqual | |
Herpetocetinae indet. Steeman 2007 whale | |
Odontoceti indet. Flower 1867 toothed whale | |
Actinopteri | |
Sardinops sp. Hubbs 1929 herring | |
Merluccius sp. Rafinesque 1810 | |
Stereolepis sp. Ayres 1859 | |
Sebastes sp. Cuvier 1829 perch-like fish | |
Paralichthys sp. Girard 1858 flatfish | |
Sarda sp. Lacépède 1802 | |
Oncorhynchus sp. Suckley 1860 Pacific salmon | |
Bivalvia | |
Yoldia sp. Möller 1842 clam | |
Arca cf. santamariensis Reinhart 1937 ark
Anadara sp. Gray 1847 ark | |
Patinopecten sp., Chlamys sp., Chlamys aff. egregius, Chlamys cf. hodgei, Chlamys cf. hastata, Swiftopecten parmeleei
Patinopecten sp. Dall 1898 scallop
Chlamys sp. Röding 1798 scallop
Chlamys aff. egregius Nomland 1917 scallop
Chlamys cf. hodgei Hertlein 1925 scallop
Chlamys cf. hastata Sowerby 1842 scallop
Swiftopecten parmeleei Dall 1898 scallop | |
Anomia peruviana, "Pododesmus cf. macrochisma" = Pododesmus (Monia) macrochisma
Anomia peruviana d'Orbigny 1846 jingle
"Pododesmus cf. macrochisma" = Pododesmus (Monia) macrochisma Deshayes 1839 scallop | |
Mytilidae indet. Rafinesque 1815 mussel
Crenomytilus cf. coalingensis Arnold 1909 mussel
Modiolus sp. Lamarck 1801 mussel | |
Panopea abrupta Conrad 1849 clam | |
Ensis sp. Schumacher 1817 clam
? Siliqua sp. Mühlfeld 1811 clam | |
Solen sp. Linnaeus 1758 clam | |
Mactridae indet. Lamarck 1809 clam
Tresus pajaroanus Conrad 1857 clam | |
Cardiidae indet. Lamarck 1809 cockle
? Clinocardium sp. Keen 1936 cockle | |
Macoma sp. Leach 1819 tellin clam
"Macoma aff. indentata" = Macoma (Rexithaerus) indentata Carpenter 1864 tellin clam
Tellina sp. Linnaeus 1758 tellin clam | |
Teredo sp. Linnaeus 1758 clam | |
Cryptomya californica Conrad 1837 softshell clam | |
Lucinoma annulatum Reeve 1850 clam | |
Gastropoda | |
Naticidae indet. Guilding 1834 moon snail | |
Neogastropoda indet. Thiele 1929 snail | |
? Lirabuccinum sp. Vermej 1991 snail | |
Nassariidae indet. Iredale 1916 snail
Caesia grammatus Dall 1917 snail | |
? Nucella sp. murex snail
? Ocenebra sp. Leach in Gray 1847 murex snail | |
Trochita cf. diabloensis Clark 1915 slipper shell
Crepidula sp. Lamarck 1799 slipper shell
Crepidula princeps Conrad 1855 slipper shell | |
Neritidae indet. Rafinesque 1815 snail | |
Trochidae indet. Rafinesque 1815 top snail | |
Thecostraca | |
Balanus irradians barnacle
Balanus cf. irradians barnacle
? Balanus sp. Da Costa 1778 barnacle
Balanus aff. nubilus Darwin 1854 barnacle | |
Malacostraca | |
Cancer sp. Linnaeus 1758 crab |