Fossils from the Lodo Fm., Fresno County (Paleocene of the United States)

Where: Fresno County, California (36.6° N, 120.7° W: paleocoordinates 41.1° N, 99.7° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Moreno Member (Lodo Formation), Paleocene (66.0 - 56.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified mudstone and lithified, glauconitic sandstone

• Moreno mudstone deposited in deep water offshore environment, sandstone deposited as a result of a submarine canyon.
• mudstone refered to as purplish-brown in color

Size classes: macrofossils, mesofossils

Primary reference: J. T. Smith. 1975. Age, Correlation and Possible Tethyan Affinities of Mollusks from the Lodo Formation of Fresno County, California. Paleogene Symposium & Selected Technical Papers: Conference on Future Energy Horizons of the Pacific Coast 464-483 [A. Miller/C. Ferguson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 11117: authorized by Arnold Miller, entered by Chad Ferguson on 18.07.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Rhynchonellata
 Terebratulida -
Eogryphus cf. tolmani Hertlein and Grant 1944
Bivalvia
 Arcida - Glycymerididae
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Mytilida - Mytilidae
 Carditida - Crassatellidae
Crassatella sp. Lamarck 1799 clam
Crassatella compacta Gabb 1868 clam
 Carditida - Carditidae
Venericardia mulleri Verástegui 1953 clam
 Cardiida - Arcticidae
 Cardiida - Cyrenidae
 Cardiida - Veneridae
? Meretrix stantoni Dickerson 1914 venus clam
 Lucinida - Lucinidae
Saxolucina sp., "Eomiltha turneri" = Gibbolucina (Eomiltha)
Saxolucina sp. Stewart 1930 clam
"Eomiltha turneri" = Gibbolucina (Eomiltha) clam
 Nuculida - Nuculidae
Acila (Truncacila) decisa Conrad 1855 divaricate nutclam
Gastropoda
  -
Gastropoda indet. Cuvier 1797 snail
 Ptenoglossa - Epitoniidae
 Opisthobranchia - Retusidae
Cylichnina cf. tantilla Anderson and Hanna 1925 snail
 Architaenioglossa - Ampullinidae
? Ampullella cf. schencki Vokes 1939 snail
 Neogastropoda - Olividae
Olivella sp. Swainson 1831 olive snail
Olivella mathewsonii Gabb 1864 olive snail
 Neogastropoda - Buccinidae
Colubraria (Colubraria) sp., Pseudoliva sp., "Brachysphingus sinuatus" = Brachysphingus sinuatus, "Brachysphingus liratus" = Brachysphingus sinuatus
Colubraria (Colubraria) sp. Schumacher 1817 true whelk
Pseudoliva sp. Swainson 1840 true whelk
"Brachysphingus sinuatus" = Brachysphingus sinuatus Gabb 1868 true whelk
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1868 true whelk
 Neogastropoda - Fasciolariidae
? Fusinus simiensis Nelson 1925 snail
Latirus sp. Monfort 1810 snail
Latirus cf. roseburgensis Hendon 1938 snail
"? Neptunea mucronata" = Fasciolaria mucronata Gabb 1868 tulip snail
 Neogastropoda - Volutidae
Retipirula crassitesta Gabb 1868 volute
 Neogastropoda - Tudiclidae
"Heterotrema trochoidea" = Heteroterma, Heteroterma striata
"Heterotrema trochoidea" = Heteroterma snail
Heteroterma striata Stanton 1896 snail
 Neogastropoda - Turbinellidae
Columbarium sp. von Martens 1881 snail
 Neogastropoda - Muricidae
Typhis sp. Montfort 1810 murex snail
 Neogastropoda - Ptychatractidae
 Neogastropoda - Turridae
? Turricula sp. Schumacher 1817 turrid
? Turricula waringi Nelson 1925 turrid
? Surcula merriami Dickerson 1914 turrid
Pleurofusia sp. de Gregorio 1890 turrid
"Pleurofusia aff. fresnoensis" = Pleurotoma fresnoensis Arnold 1910 turrid
 Stromboidea - Strombidae
"? Surculites mathewsonii" = Fusus mathewsonii
"? Surculites mathewsonii" = Fusus mathewsonii Gabb 1864 true conch
 Ficoidea - Ficidae
Priscoficus caudata, "Pseudoperissolax blakei" = Perissolax blakei
"Pseudoperissolax blakei" = Perissolax blakei Conrad 1855 fig shell
 Naticoidea - Naticidae
Polinices aff. rectus Tegland 1933 moon snail
Polinices cf. nuciformis Gabb 1864 moon snail
Crommium andersoni Dickerson 1914 moon snail
Lacunaria aff. striata Gabb 1869 moon snail
 Cypraeoidea - Cypraeidae
Cypraea sp. Linnaeus 1758 cowry
"Gisortia cf. clarki" = Gisortia (Megalocypraea) clarki Ingram 1940 cowry
Gisortia cf. clarki
 Calyptraeoidea - Calyptraeidae
Calyptraea diegoana Conrad 1855 slipper shell
 Tonnoidea - Bursidae
 Sorbeoconcha - Turritellidae
Turritellidae indet. Lovén 1847 turret shell
Turritella stocki turret shell
Turritella pachecoensis Stanton 1896 turret shell
Turritella reversa Waring 1917 turret shell
Turritella infragranulata Gabb 1864 turret shell
 Sorbeoconcha - Metacerithiidae
Metacerithium packardi Nelson 1925 snail
 Heterostropha - Acteonidae
Tornatellaea pinguis Gabb 1864 snail
 Basommatophora - Physidae
Physa sp. Draparnaud 1801 pulmonate
 Turbinoidea - Turbinidae
Macrarene sp. Hertlein and Strong 1951 snail
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium cooperi Gabb 1864 tusk shell
Anthozoa
 Scleractinia - Caryophylliidae
Deltocyathus whitei Durham 1943 stony coral
 Scleractinia - Flabellidae
"Flabellum remondianum" = Flabellum cuneiforme
"Flabellum remondianum" = Flabellum cuneiforme Lonsdale 1845 stony coral