USGS Cenozoic M903 San Lucas Quad (Miocene of the United States)

Also known as UCMP IP6633

Where: Monterey County, California (36.1° N, 121.0° W: paleocoordinates 35.8° N, 119.1° W)

• coordinate stated in text

When: Pancho Rico Formation, Messinian (7.2 - 5.3 Ma)

• Described in reference as Pliocene. Pancho Rico Formation is Miocene per Addicott 1978 (Geological Survey Bulletin, Issue 1457). AGE: Revised to Messian consistent with EPICC stratigraphic revision [A. Hendy, 06/2020].

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by D. L Durham, W. O. Addicott in 1959, 1964

Primary reference: D. L. Durham and W. O. Addicott. 1965. Pancho Rico Formation, Salinas Valley. United States Geological Survey Professional Paper 524(A):A1-A22 [P. Holroyd/S. Tremblay]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 194796: authorized by Patricia Holroyd, entered by Susan Tremblay on 29.06.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Echinoidea
 Clypeasteroida - Dendrasteridae
Dendraster sp.
Dendraster sp. Agassiz and Desor 1847 sand dollar
 Clypeasteroida - Echinarachniidae
? Astrodapsis sp., Astrodapsis cf. spatiosus, Astrodapsis cf. fernandoensis
? Astrodapsis sp. Conrad 1856 sand dollar
Astrodapsis cf. spatiosus Kew 1920 sand dollar
Astrodapsis cf. fernandoensis Pack 1909 sand dollar
Thecostraca
 Balanomorpha - Balanidae
Balanus gregarius
Balanus gregarius Conrad 1856 barnacle
Gastropoda
 Cerithioidea - Turritellidae
Turritella cooperi
Turritella cooperi Carpenter 1864 turret shell
 Neogastropoda - Turridae
? Megasurcula "n. sp. aff. wynoocheensis"
 Neogastropoda - Muricidae
Ceratostoma nuttalli, Ceratostoma foliatum, Ocenebra cierboensis, Ocenebra "n. sp. A", Acanthina "n. sp.", ? Forreria belcheri, Forreria cf. coalingense, Thais collomi
Ceratostoma nuttalli Conrad 1837 murex snail
Ceratostoma foliatum Gmelin 1791 murex snail
Ocenebra "n. sp. A" Leach in Gray 1847 murex snail
Acanthina "n. sp." Fischer de Waldheim 1807 unicorn
? Forreria belcheri Hinds 1843 murex snail
Forreria cf. coalingense Arnold 1909 murex snail
Thais collomi Carson 1926 murex snail
 Neotaenioglossa - Calyptraeidae
Calyptraea sp.
Calyptraea sp. Lamarck 1799 slipper shell
 Epitonioidea - Epitoniidae
Epitonium cf. eelense
Epitonium cf. eelense Durham 1937 wentletrap
 Trochoidea - Trochidae
"Calliostoma coalingense" = Calliostoma coalingensis
"Calliostoma coalingense" = Calliostoma coalingensis Arnold 1909 top snail
Bivalvia
 Mytilida - Mytilidae
Mytilus sp.
Mytilus sp. Linnaeus 1758 mussel
 Arcida - Glycymerididae
Glycymeris sp.
Glycymeris sp. Da Costa 1778 clam
 Ostreida - Pinnidae
Atrina sp.
Atrina sp. Gray 1842 oyster
 Pectinida - Pectinoidae
"Lyropecten cf. estrellanus" = Nodipecten estrellanus, Chlamys sp.
"Lyropecten cf. estrellanus" = Nodipecten estrellanus Conrad 1856 scallop
Chlamys sp. Röding 1798 scallop
 Pectinida - Anomiidae
? Anomia sp.
? Anomia sp. Linnaeus 1758 jingle
 Pectinida - Limidae
"Lima cf. hemphilli" = Limaria hemphilli
"Lima cf. hemphilli" = Limaria hemphilli Hertlein and Strong 1946 file clam
 Lucinida - Lucinidae
Miltha sp.
Miltha sp. Adams and Adams 1857 clam
 Cardiida - Tellinidae
"Tellina cf. idae" = Idatellina idae
"Tellina cf. idae" = Idatellina idae Dall 1891 tellin clam
 Cardiida - Veneridae
"Chione cf. fernandoensis" = Chione (Securella) securis fernandoensis
"Chione cf. fernandoensis" = Chione (Securella) securis fernandoensis English 1914 venus clam
 Hiatellida - Hiatellidae
"Panope abrupta" = Panopea abrupta
"Panope abrupta" = Panopea abrupta Conrad 1849 clam