USGS 4473 - Casmalia Hills [Foxen Mudstone] (Pliocene of the United States)

Where: Santa Barbara County, California (34.9° N, 120.5° W: paleocoordinates 34.7° N, 119.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Foxen Mudstone Formation, Piacenzian (3.6 - 2.6 Ma)

• LITHOSTRATIGRAPHY: From the Foxen Mudstone, which overlies the Sisquoc Formation (late Miocene-early Pliocene) and underlies the Careaga Formation (late Pliocene). AGE: Early-middle Pliocene, on the basis of foraminiferal and microfossil biostratigraphy.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified mudstone

• PALEOENVIRONMENT: Established on the basis of faunal composition.
• LITHOLOGY: Mudstone. LITHIFICATION: Assumed on the basis of figured specimens.

Size class: macrofossils

Collected by W. Woodring; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTORS: Not reported, but assumed to be W. Woodring. REPOSITORY: Smithsonian (USNM).

Primary reference: W. P. Woodring and M.N. Bramlette. 1950. Geology and paleontology of the Santa Maria District California. United States Geological Survey Professional Paper 222:1-185 [A. Miller/A. Hendy/S. Ávila]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 189542: authorized by Austin Hendy, entered by Austin Hendy on 29.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Somewhat antiquated nomenclature.
Gastropoda
 Seguenzioidea - Eucyclidae
 Sorbeoconcha - Procerithiidae
unclassified
  -
Gastropoda
 Neogastropoda - Muricidae
unclassified
  -
Anthozoa
 Scleractinia - Dendrophylliidae
Dendrophyllia sp. Blainville 1830 stony coral
Thecostraca
 Balanomorpha - Balanidae
"Balanus hesperius proinus" = Balanus (Hesperibalanus) proinus
"Balanus hesperius proinus" = Balanus (Hesperibalanus) proinus Woodring and Bramlette 1950 barnacle
Gastropoda
 Lepetellida - Fissurellidae
"Puncturella cucullata" = Craniopsis cucullata
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella
 Seguenzioidea - Eucyclidae
Turcica caffea Gabb 1865 snail
 Heterostropha - Pyramidellidae
"Odostomia pratoma" = Odostomia (Evalea) pratoma
"Odostomia pratoma" = Odostomia (Evalea) pratoma Dall and Bartsch 1909 snail
 Cerithioidea - Turritellidae
Turritella cooperi Carpenter 1864 turret shell
 Neotaenioglossa - Calyptraeidae
Crepidula princeps Conrad 1855 slipper shell
Trochita radians Lamarck 1816 slipper shell
 Sorbeoconcha - Naticidae
"Lunatia cf. lewisii" = Euspira lewisii, "Neverita reclusiana" = Glossaulax reclusiana, Cryptonatica affinis
"Lunatia cf. lewisii" = Euspira lewisii Gould 1847 moon snail
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
Cryptonatica affinis Gmelin 1791 moon snail
 Sorbeoconcha - Vermetidae
"Aletes squamigerus" = Thylacodes squamigerus
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 worm shell
 Sorbeoconcha - Ranellidae
Fusitriton cf. oregonensis Redfield 1846 triton shell
""Gyrineum" elsmerense" = Reticutriton elsmerensis English 1914 triton shell
 Neogastropoda - Nassariidae
""Nassa" waldorfensis" = Caesia californiana
""Nassa" waldorfensis" = Caesia californiana Conrad 1856 snail
 Neogastropoda - Siphonaliidae
Calicantharus sp. Clark 1938 snail
 Neogastropoda - Buccinidae
Neptunea sp. Röding 1798 true whelk
 Neogastropoda - Columbellidae
Amphissa sp. Adams and Adams 1853 snail
Mitrella gausapata Gould 1850 snail
 Neogastropoda -
"Barbarofusus cf. arnoldi" = Harfordia arnoldi
"Barbarofusus cf. arnoldi" = Harfordia arnoldi Cossmann 1903 snail
 Neogastropoda - Muricidae
 Neogastropoda - Volutidae
"Psephaea oregonensis" = Fulgoraria oregonensis
"Psephaea oregonensis" = Fulgoraria oregonensis Dall 1909 volute
 Neogastropoda - Olividae
"Olivella cf. baetica" = Callianax baetica
"Olivella cf. baetica" = Callianax baetica Carpenter 1864 olive snail
 Neogastropoda - Drilliidae
Elaeocyma cf. empyrosia Dall 1899 snail
 Neogastropoda - Conidae
Propebela sp. Iredale 1918 cone shell
 Neogastropoda - Cancellariidae
"Cancellaria" arnoldi Dall 1909 snail
Scaphopoda
 Gadilida - Gadilidae
"Cadulus fusiformis" = Gadila aberrans
"Cadulus fusiformis" = Gadila aberrans Whiteaves 1887 tusk shell
Bivalvia
 Nuculanida - Nuculanidae
Saccella orcutti, "Saccella cellulita" = Jupiteria cellulita
Saccella orcutti Arnold 1908 pointed nut clam
"Saccella cellulita" = Jupiteria cellulita Dall 1896 pointed nut clam
 Mytilida - Mytilidae
"Volsella cf. capax" = Modiolus capax
"Volsella cf. capax" = Modiolus capax Conrad 1837 mussel
 Arcida - Arcidae
"Arca sisquocensis" = Arca (Arca) sisquocensis Reinhart 1937 ark
Anadara trilineata Conrad 1856 ark
 Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778 clam
 Ostreida - Ostreidae
"Ostrea cf. vespertina" = Dendostrea vespertina
"Ostrea cf. vespertina" = Dendostrea vespertina Conrad 1855 oyster
 Pectinida - Pectinoidae
"Chlamys hastatus" = Chlamys hastata, "Chlamys parmeleei" = Swiftopecten parmeleei, "Pecten stearnsii" = Leopecten stearnsii
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
"Chlamys parmeleei" = Swiftopecten parmeleei Dall 1898 scallop
SUBSPECIES: Chlamys parmeleei etchegoini
"Pecten stearnsii" = Leopecten stearnsii Dall 1878 scallop
 Carditida - Carditidae
"Cyclocardia californica" = Coanicardita californica
"Cyclocardia californica" = Coanicardita californica Dall 1903 clam
 Pholadida - Myidae
Mya sp. Linnaeus 1758 softshell clam
Sphenia cf. globula softshell clam
 Pholadida - Pholadidae
"Pholadidea penita" = Penitella penita
"Pholadidea penita" = Penitella penita Conrad 1837 clam
 Cardiida - Lasaeidae
"Kellia laperousii" = Kellia suborbicularis
"Kellia laperousii" = Kellia suborbicularis Montague 1803 kelly clam
 Cardiida - Veneridae
"Transennella cf. tantilla" = Nutricola tantilla
"Transennella cf. tantilla" = Nutricola tantilla Gould 1853 venus clam
 Cardiida - Tellinidae
"Tellina cf. lutea" = Tellina (Megangulus) lutea Gray 1828 tellin clam
Macoma sp. Leach 1819 tellin clam
Macoma cf. brota Dall 1916 tellin clam
 Cardiida - Semelidae
Semele sp., "Semele cf. rubropicta" = Semele (Semele) rubropicta
Semele sp. Schumacher 1817 clam
"Semele cf. rubropicta" = Semele (Semele) rubropicta Dall 1871 clam
 Pandorida - Pandoridae
"Pandora cf. filosa" = Pandora (Pandorella) filosa
"Pandora cf. filosa" = Pandora (Pandorella) filosa Carpenter 1863 clam
 Hiatellida - Hiatellidae
"Panope cf. generosa" = Panopea generosa
"Panope cf. generosa" = Panopea generosa Gould 1850 clam
 Lucinida - Thyasiridae
"Thyasira cf. gouldii" = Thyasira flexuosa
"Thyasira cf. gouldii" = Thyasira flexuosa Montagu 1803 clam
 Lucinida - Lucinidae
Parvilucina tennisculpta, "Lucinoma cf. annulata" = Lucinoma annulatum, "Lucinisca nuttallii" = Lucinisca nuttalli
"Lucinoma cf. annulata" = Lucinoma annulatum Reeve 1850 clam
"Lucinisca nuttallii" = Lucinisca nuttalli Conrad 1837 clam