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.
Show authors, comments, and common names
Anthozoa
 Scleractinia - Dendrophylliidae
Dendrophyllia sp.
Dendrophyllia sp. Blainville 1830 stony coral
Scaphopoda
 Gadilida - Gadilidae
"Cadulus fusiformis" = Gadila aberrans
"Cadulus fusiformis" = Gadila aberrans Whiteaves 1887 tusk shell
Bivalvia
 Mytilida - Mytilidae
"Volsella cf. capax" = Modiolus capax
"Volsella cf. capax" = Modiolus capax Conrad 1837 mussel
 Arcida - Glycymerididae
Glycymeris sp.
Glycymeris sp. Da Costa 1778 clam
 Arcida - Arcidae
Anadara trilineata, "Arca sisquocensis" = Arca (Arca) sisquocensis
Anadara trilineata Conrad 1856 ark
"Arca sisquocensis" = Arca (Arca) sisquocensis Reinhart 1937 ark
 Ostreida - Ostreidae
"Ostrea cf. vespertina" = Dendostrea vespertina
"Ostrea cf. vespertina" = Dendostrea vespertina Conrad 1855 oyster
 Pectinida - Pectinoidae
"Pecten stearnsii" = Leopecten stearnsii, "Chlamys hastatus" = Chlamys hastata, "Chlamys parmeleei" = Swiftopecten parmeleei
"Pecten stearnsii" = Leopecten stearnsii Dall 1878 scallop
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop
"Chlamys parmeleei" = Swiftopecten parmeleei Dall 1898 scallop
SUBSPECIES: Chlamys parmeleei etchegoini
 Carditida - Carditidae
"Cyclocardia californica" = Coanicardita californica
"Cyclocardia californica" = Coanicardita californica Dall 1903 clam
 Lucinida - Lucinidae
"Lucinisca nuttallii" = Lucinisca nuttalli, Parvilucina tennisculpta, "Lucinoma cf. annulata" = Lucinoma annulatum
"Lucinisca nuttallii" = Lucinisca nuttalli Conrad 1837 clam
SUBSPECIES: Lucinisca nuttallii
"Lucinoma cf. annulata" = Lucinoma annulatum Reeve 1850 clam
 Lucinida - Thyasiridae
"Thyasira cf. gouldii" = Thyasira flexuosa
"Thyasira cf. gouldii" = Thyasira flexuosa Montagu 1803 clam
 Pholadida - Myidae
Sphenia cf. globula, Mya sp.
Sphenia cf. globula softshell clam
Mya sp. Linnaeus 1758 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 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
 Cardiida - Tellinidae
Macoma sp., Macoma cf. brota, "Tellina cf. lutea" = Tellina (Megangulus) lutea
Macoma sp. Leach 1819 tellin clam
Macoma cf. brota Dall 1916 tellin clam
"Tellina cf. lutea" = Tellina (Megangulus) lutea Gray 1828 tellin clam
 Cardiida - Veneridae
"Transennella cf. tantilla" = Nutricola tantilla
"Transennella cf. tantilla" = Nutricola tantilla Gould 1853 venus clam
 Hiatellida - Hiatellidae
"Panope cf. generosa" = Panopea generosa
"Panope cf. generosa" = Panopea generosa Gould 1850 clam
 Pandorida - Pandoridae
"Pandora cf. filosa" = Pandora (Pandorella) filosa
"Pandora cf. filosa" = Pandora (Pandorella) filosa Carpenter 1863 clam
 Nuculanida - Nuculanidae
"Saccella cellulita" = Jupiteria cellulita, Saccella orcutti
"Saccella cellulita" = Jupiteria cellulita Dall 1896 pointed nut clam
Saccella orcutti Arnold 1908 pointed nut clam
Gastropoda
 Seguenzioidea - Eucyclidae
Turcica caffea
Turcica caffea Gabb 1865 snail
SUBSPECIES: Turcica imperialis brevis
 Lepetellida - Fissurellidae
"Puncturella cucullata" = Craniopsis cucullata
"Puncturella cucullata" = Craniopsis cucullata Gould 1846 puncturella
 Heterostropha - Pyramidellidae
"Odostomia pratoma" = Odostomia (Evalea) pratoma
"Odostomia pratoma" = Odostomia (Evalea) pratoma Dall and Bartsch 1909 snail
 Cerithioidea - Turritellidae
Turritella cooperi
Turritella cooperi Carpenter 1864 turret shell
 Sorbeoconcha - Procerithiidae
"Bittium casmaliense" = Lirobittium casmaliense
"Bittium casmaliense" = Lirobittium casmaliense Bartsch 1911 snail
INCLUDES SUBSPECIES: Bittium casmaliense arnoldo
 Sorbeoconcha - Naticidae
Cryptonatica affinis, "Lunatia cf. lewisii" = Euspira lewisii, "Neverita reclusiana" = Glossaulax reclusiana
Cryptonatica affinis Gmelin 1791 moon snail
"Lunatia cf. lewisii" = Euspira lewisii Gould 1847 moon snail
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
 Sorbeoconcha - Vermetidae
"Aletes squamigerus" = Thylacodes squamigerus
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 worm shell
 Neogastropoda -
"Barbarofusus cf. arnoldi" = Harfordia arnoldi
"Barbarofusus cf. arnoldi" = Harfordia arnoldi Cossmann 1903 snail
 Neogastropoda - Columbellidae
Amphissa sp., Mitrella gausapata
Amphissa sp. Adams and Adams 1853 snail
Mitrella gausapata Gould 1850 snail
 Neogastropoda - Buccinidae
Neptunea cf. stantoni, Neptunea sp.
Neptunea sp. Röding 1798 true whelk
 Neogastropoda - Nassariidae
""Nassa" waldorfensis" = Caesia californiana
""Nassa" waldorfensis" = Caesia californiana Conrad 1856 snail
 Neogastropoda - Siphonaliidae
Calicantharus sp.
Calicantharus sp. Clark 1938 snail
 Neogastropoda - Cancellariidae
"Cancellaria" arnoldi
"Cancellaria" arnoldi Dall 1909 snail
 Neogastropoda - Olividae
"Olivella cf. baetica" = Callianax baetica
"Olivella cf. baetica" = Callianax baetica Carpenter 1864 olive snail
 Neogastropoda - Turridae
Megasurcula carpenteriana
Megasurcula carpenteriana Gabb 1866 turrid
SUBSPECIES: Meqasurcula carpenteriana tyroniana
 Neogastropoda - Conidae
Propebela sp.
Propebela sp. Iredale 1918 cone shell
 Neogastropoda - Drilliidae
Elaeocyma cf. empyrosia
Elaeocyma cf. empyrosia Dall 1899 snail
 Neogastropoda - Volutidae
"Psephaea oregonensis" = Fulgoraria oregonensis
"Psephaea oregonensis" = Fulgoraria oregonensis Dall 1909 volute
 Neogastropoda - Muricidae
Jaton cf. carpenteri, Nucella lamellosa
Nucella lamellosa Gmelin 1791 murex snail
SUBSPECIES: Nucella lamellosa collomi
 Sorbeoconcha - Ranellidae
Fusitriton cf. oregonensis, ""Gyrineum" elsmerense" = Reticutriton elsmerensis, ""Gyrineum" mediocre" = Argobuccinum mediocre
Fusitriton cf. oregonensis Redfield 1846 triton shell
""Gyrineum" elsmerense" = Reticutriton elsmerensis English 1914 triton shell
""Gyrineum" mediocre" = Argobuccinum mediocre Dall 1909 triton shell
SUBSPECIES: "Gyrineum" mediocre lewisii
 Neotaenioglossa - Calyptraeidae
Trochita radians, Crepidula princeps
Trochita radians Lamarck 1816 slipper shell
Crepidula princeps Conrad 1855 slipper shell
Thecostraca
 Balanomorpha - Balanidae
"Balanus hesperius" = Balanus (Hesperibalanus) hesperius
"Balanus hesperius" = Balanus (Hesperibalanus) hesperius Pilsbry 1916 barnacle
SUBSPECIES: Balanus hesperius proinus