Where: Kern County, California (35.4° N, 118.8° W: paleocoordinates 35.3° N, 113.6° W)
• coordinate stated in text
When: Round Mountain Formation, Langhian (16.0 - 13.8 Ma)
• Stratigraphic horizon: lowermost part of Round Mountain silt. AGE: Changed to Langhian and "Round Mountain Silt" following EPICC stratigraphic revision.
Environment/lithology: marine; poorly lithified, gray siltstone
Size class: macrofossils
Collected by D. B. Birch, R. T. White, L. T. Martin, E. A. Watson, A. M .Keen in 1938 - 1940
• Collectors: Donald C Birch, 1938; Robert T. White, 1939; Lois T. Martin and Elizabeth A. Watson, 1940; A. Myra Keen, 1939.
Primary reference: A. M. Keen. 1943. New mollusks from the Round Mountain Silt (Temblor) Miocene of California. Transactions of the San Diego Society of Natural History 10(2):25-60 [J. Marcot/J. Marcot]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 206393: authorized by Jonathan Marcot, entered by Jonathan Marcot on 14.11.2019
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Yoldia oregona" = Yoldia (Kalayoldia) oregona, "Yoldia temblorensis" = Yoldia (Yoldia) temblorensis
"Yoldia oregona" = Yoldia (Kalayoldia) oregona Shumard 1858 clam
"Yoldia temblorensis" = Yoldia (Yoldia) temblorensis Anderson and Martin 1914 clam | |
"Nuculana ochsneri" = Nuculana (Saccella) ochsneri
"Nuculana ochsneri" = Nuculana (Saccella) ochsneri Anderson and Martin 1914 pointed nut clam | |
"Nucula (Ennucula) birchi n. sp." = Nucula (Leionucula) birchi
"Nucula (Ennucula) birchi n. sp." = Nucula (Leionucula) birchi Keen 1943 nut clam | |
"Mactra sectoris" = Mactromeris sectoris
"Mactra sectoris" = Mactromeris sectoris Anderson and Martin 1914 clam | |
"Taras buwaldana" = Diplodonta (Diplodonta) buwaldana
"Taras buwaldana" = Diplodonta (Diplodonta) buwaldana Anderson and Martin 1914 clam | |
Transennella joaquinensis, Chione (Chione) temblorensis, "Chione (Lirophora) latilaminosa" = Chione (Anomalocardia) latilaminosa, Dosinia (Dosinidia) margaritana
Transennella joaquinensis Anderson and Martin 1914 venus clam
Chione (Chione) temblorensis Anderson 1905 venus clam
"Chione (Lirophora) latilaminosa" = Chione (Anomalocardia) latilaminosa Anderson and Martin 1914 venus clam
Dosinia (Dosinidia) margaritana Wiedey 1928 venus clam | |
Donax sp., "Bornia (Temblornia) triangulata" = Donax triangulata
"Bornia (Temblornia) triangulata" = Donax triangulata Anderson and Martin 1914 clam | |
Macoma (Rexithaerus) copelandi, "Tellina cf. arctata" = Macoma (Psammacoma) arctata, Tellina (Arcopagia) ocoyana, Tellina wilsoni, "Tellina (Peronidia) oldroydi" = Tellina (Eurytellina) oldroydi
Macoma (Rexithaerus) copelandi Wiedey 1928 tellin clam
"Tellina cf. arctata" = Macoma (Psammacoma) arctata Conrad 1849 tellin clam
Tellina (Arcopagia) ocoyana Conrad 1855 tellin clam
Tellina wilsoni Anderson and Martin 1914 tellin clam
"Tellina (Peronidia) oldroydi" = Tellina (Eurytellina) oldroydi Wiedey 1928 tellin clam | |
Pandora (Kennerlyia) acutirostrata Clark 1918 clam | |
"Lucinisca menuda n. sp." = Lucina (Lucinisca) menuda, "Miltha sanctaecrucis" = Miltha (Miltha) sanctaecrucis
"Lucinisca menuda n. sp." = Lucina (Lucinisca) menuda Keen 1943 clam
"Miltha sanctaecrucis" = Miltha (Miltha) sanctaecrucis Arnold 1909 clam | |
Anadara osmonti Dall 1909 ark | |
"Aequipecten andersoni" = Pacipecten andersoni
"Aequipecten andersoni" = Pacipecten andersoni Arnold 1906 scallop as Aequipecten andersoni barkerianus ?
| |
Scaphopoda | |
"Dentalium conradi" = Dentalium pseudonyma, "Dentalium petricola" = Dentalium pseudonyma
"Dentalium conradi" = Dentalium pseudonyma Pilsbry and Sharp 1898 tusk shell
"Dentalium petricola" = Dentalium pseudonyma Pilsbry and Sharp 1898 tusk shell | |
Gastropoda | |
Cylichna temblorensis n. sp., ? Cylichna loismartinae n. sp.
Cylichna temblorensis n. sp. Keen 1943 snail
? Cylichna loismartinae n. sp. Keen 1943 snail | |
Volvulella gluma Keen 1943 snail | |
Bulla cantuaensis Anderson and Martin 1914 snail | |
Calyptraea filosa Gabb 1866 slipper shell
Crepidula rostralis Conrad 1865 slipper shell | |
Turritella ocoyana Conrad 1855 turret shell | |
"? Teinostoma (Teinostoma) lens n. sp." = Vitrinella (Vitrinellops) lens
"? Teinostoma (Teinostoma) lens n. sp." = Vitrinella (Vitrinellops) lens Keen 1943 snail | |
"Ficus (Trophosycon) ocoyana" = Trophosycon ocoyanum
"Ficus (Trophosycon) ocoyana" = Trophosycon ocoyanum Conrad 1855 fig shell | |
Typhis (Talityphis) lampada n. sp., "Trophon kernensis" = Trophon (Austrotrophon) kernensis
Typhis (Talityphis) lampada n. sp. Keen 1943 murex snail
"Trophon kernensis" = Trophon (Austrotrophon) kernensis Anderson 1905 murex snail | |
Cancellaria barkeri, Cancellaria simplex, "Cancellaria ramonensis" = Cancellaria oregonensis, Cancellaria pacifica, "Cancellaria dalliana" = Cancellaria (Euclia) dalliana, "Cancellaria condoni" = Cancellaria (Euclia) condoni
Cancellaria barkeri snail
Cancellaria simplex Anderson 1905 snail
"Cancellaria ramonensis" = Cancellaria oregonensis Conrad 1865 snail
Cancellaria pacifica Anderson 1905 snail
"Cancellaria dalliana" = Cancellaria (Euclia) dalliana Anderson 1905 snail
"Cancellaria condoni" = Cancellaria (Euclia) condoni Anderson 1905 snail | |
Conus owenianus Anderson 1905 cone shell | |
"Terebra cooperi" = Terebra (Terebra) cooperi, Hastula gnomon n. sp.
"Terebra cooperi" = Terebra (Terebra) cooperi Anderson 1905 auger snail
Hastula gnomon n. sp. Keen 1943 auger snail | |
Mangelia kernensis Anderson and Martin 1914 snail | |
"Moniliopsis electilis n. sp." = Ophiodermella electilis, Megasurcula howei
"Moniliopsis electilis n. sp." = Ophiodermella electilis Keen 1943 turrid
Megasurcula howei Hanna and Hertlein 1938 turrid | |
Turricula piercei Arnold 1909 snail
Turricula ochsneri Anderson and Martin 1914 snail
"Turricula buwaldana" = Turricula bulwaldana Anderson and Martin 1914 snail | |
"Olivella ischnon" = Olivella (Olivella) ischnon
"Olivella ischnon" = Olivella (Olivella) ischnon Keen 1943 olive snail | |
"Amphissa posunculensis" = Antillophos posunculensis, "Phos (Antillophos) dumbleana" = Antillophos posunculensis, Mitrella (Mitrella) anchuela n. sp., Anachis watsonae n. sp., Nassarius arnoldi, Nassarius antiselli, "Nassarius ocoyanus" = Nassarius (Phrontis) ocoyanus, "Nassarius blakei" = Nassarius (Phrontis) ocoyanus, Bruclarkia geniculata
"Amphissa posunculensis" = Antillophos posunculensis Anderson and Martin 1914 true whelk
"Phos (Antillophos) dumbleana" = Antillophos posunculensis Anderson and Martin 1914 true whelk
Mitrella (Mitrella) anchuela n. sp. Keen 1943 true whelk
Anachis watsonae n. sp. Keen 1943 true whelk
Nassarius arnoldi Anderson 1905 true whelk
Nassarius antiselli Anderson and Martin 1914 true whelk
"Nassarius ocoyanus" = Nassarius (Phrontis) ocoyanus Anderson and Martin 1914 true whelk
"Nassarius blakei" = Nassarius (Phrontis) ocoyanus Anderson and Martin 1914 true whelk
Bruclarkia geniculata true whelk | |
Eulima gabbiana, Balcis conchita n. sp., Neverita andersoni, "Neverita callosa" = Glossaulax reclusiana, Natica posuncula, Sinum scopulosum
Eulima gabbiana Anderson and Martin 1914 snail
Balcis conchita n. sp. Keen 1943 snail
Neverita andersoni Clark 1918 moon snail
"Neverita callosa" = Glossaulax reclusiana Deshayes 1839 moon snail
Natica posuncula Hanna and Hertlein 1938 moon snail
Sinum scopulosum Conrad 1849 moon snail | |
"Ferminoscala whitei n. sp." = Scalina whitei, Ferminoscala durhami n. sp., Epitonium cf. indianorum
"Ferminoscala whitei n. sp." = Scalina whitei Keen 1943 wentletrap
Ferminoscala durhami n. sp. Keen 1943 wentletrap
Epitonium cf. indianorum Carpenter 1864 wentletrap | |
Calliostoma cf. diabloensis Clark 1915 top snail | |
"Acteon boulderana" = Acteon boulderanus
"Acteon boulderana" = Acteon boulderanus Etherington 1931 snail | |
"Chrysallida rotundomontana n. sp." = Odostomia (Besla) rotundomontana, Turbonilla (Pyrgiscus) bravoensis n. sp., "Pyramidella cooperi" = Pyramidella (Longchaeus) cooperi, Odostomia (Evalea) andersoni, Turbonilla (Pyrgolampros) mariposa n. sp., "Syrnola scandix n. sp." = Pyramidella (Syrnola) ochsneri
"Chrysallida rotundomontana n. sp." = Odostomia (Besla) rotundomontana Keen 1943 snail
Turbonilla (Pyrgiscus) bravoensis n. sp. Keen 1943 snail
"Pyramidella cooperi" = Pyramidella (Longchaeus) cooperi Anderson and Martin 1914 snail
Odostomia (Evalea) andersoni Bartsch and Hertlein 1917 Brea owl
Turbonilla (Pyrgolampros) mariposa n. sp. Keen 1943 snail
"Syrnola scandix n. sp." = Pyramidella (Syrnola) ochsneri Anderson and Martin 1914 snail |