UCMP loc. 2679 (Pliocene of the United States)
Where: Fresno County, California (36.0° N, 120.4° W: paleocoordinates 35.8° N, 119.1° W)
• coordinate stated in text
When: Jacalitos Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)
Environment/lithology: marginal marine; lithified, coarse-grained sandstone and conglomerate
• The beds of coal, the coarseness of the sandstones and conglomerates, the variation of the lithology within short distances, and the character of the molluscan fauna may be taken as indicative of deposition under shallow water conditions. The occurrence of quantities of gypsum at some localities, if it can be proved to be interstratified with the clastic rocks, may indicate that in part the beds are terrestrial or that the basin of deposition was nearly isolated from the sea.
• On Jacalitos Creek the Pliocene strata comprise essentially an alternation of soft coarse sandstone and conglomerate. In many of the fossiliferous horizons the beds have been much indurated, causing these strata to outcrop prominently. Of minor importance are shale, rhyolitie tuff, and thin layers of coal. A bed of silicious limestone having a thickness of about ten feet was traced more than one-half mile until cut off by faulting. A short distance above and below the limestone marine fossils were found.
Size class: macrofossils
Reposited in the UCMP
Primary reference: J. O. Nomland. 1916. Fauna from the lower Pliocene at Jacalitos Creek and Waltham Canyon, Fresno County, California. University of California Publications, Bulletin of the Department of Geology 9(14):199-214 [J. Alroy/J. Alroy/P. Holroyd]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 206370: authorized by Jonathan Marcot, entered by Jonathan Marcot on 13.11.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Echinoidea | |
|
Dendraster gibbsii Rémond 1863 sand dollar | |
| Gastropoda | |
"Natica (Neverita) orbicularis n. sp." = Polinices (Euspira) galianoi, Natica recluziana, Sinum scopulosum
"Natica (Neverita) orbicularis n. sp." = Polinices (Euspira) galianoi Dall 1909 moon snail
Natica recluziana Deshayes 1839 moon snail
Sinum scopulosum Conrad 1849 moon snail | |
|
Chrysodomus imperialis true whelk | |
"Turris coalingensis" = Clavus (Clathrodrillia) coalingensis
"Turris coalingensis" = Clavus (Clathrodrillia) coalingensis Arnold 1909 snail | |
Thais kettlemanensis, "Trophon coalingense" = Forreria coalingense
Thais kettlemanensis Arnold 1909 murex snail
"Trophon coalingense" = Forreria coalingense Arnold 1909 murex snail | |
| Bivalvia | |
"Pecten terminus" = Lyropecten terminus, "Pecten oweni" = Patinopecten lohri
"Pecten terminus" = Lyropecten terminus Arnold 1906 scallop
"Pecten oweni" = Patinopecten lohri Hertlein 1927 scallop | |
"Monia macroschisma" = Pododesmus (Monia) macrochisma
"Monia macroschisma" = Pododesmus (Monia) macrochisma Deshayes 1839 scallop | |
"Arca trilineata" = Anadara trilineata
"Arca trilineata" = Anadara trilineata Conrad 1856 ark | |
"Metis alta" = Leporimetis obesa, "Tellina bodegensis" = Megangulus bodegensis
"Metis alta" = Leporimetis obesa Deshayes 1855 tellin clam
"Tellina bodegensis" = Megangulus bodegensis Hinds 1844 tellin clam | |
"Paphia staminea" = Leukoma staminea, Saxidomus nuttalli, "Chione elsmerensis" = Securella elsmerensis
"Paphia staminea" = Leukoma staminea Conrad 1837 venus clam
Saxidomus nuttalli Conrad 1837 venus clam
"Chione elsmerensis" = Securella elsmerensis English 1914 venus clam | |
"Panope generosa" = Panopea generosa
"Panope generosa" = Panopea generosa Gould 1850 clam | |
"Phacoides annulatus" = Lucinoma annulatum
"Phacoides annulatus" = Lucinoma annulatum Reeve 1850 clam | |
| Thecostraca | |
"Balanus concavus" = Concavus concavus
"Balanus concavus" = Concavus concavus Bronn 1831 barnacle | |