Jewett Sand Formation Explained

Jewett Sand Formation
Type:	Formation
Age:	Neogene Miocene
Period:	Miocene
Region:	California
Country:	United States

The Jewett Sand Formation is a geologic formation in California, USA. It preserves fossils dating back to the Miocene Epoch of the Neogene period.

Vertebrates

Cartilaginous fishes

Sharks

thumb|200px|Fossil teeth of C. hastalis

• †Alopias exigua^[1]
• †Alopias latidens^[1]
• Alopias vulpinus^[1]
• †Carcharocles angustidens ^[1]
• †Carcharodon hastalis^[1]
• Carcharhinus sp.^[1]
• Cephaloscyllium sp.^[1]
• Cetorhinus sp.^[1]
• Echinorhinus blakei^[1]
• †Galeocerdo medius^[1]
• †Galeorhinus latus^[1]
• Heterodontus sp.^[1]
• Hexanchus sp.^[1]
• †Megachasma applegatei ^[2]
• †Megalolamna paradoxodon^[3]
• †Negaprion elongata^[1]
• Odontaspis ferox^[1]
• †Parotodus benedini^[1]
• Sphyrna sp.^[1]
• †Squalus serriculus^[1]
• Squatina lerichi^[1]

Rays and skates

• †Zapteryx californicus^[1]
• Myliobatis californicus^[1]

Bony Fishes

• Bothidae indet.^[1]
• Embiotocidae indet.^[1]
• Gadidae indet.^[1]
• Pleuronectidae indet.^[1]
• Sciaenidae indet.^[1]
• Scorpaenidae indet.^[1]

Reptiles

• Chelonia indet.^[1]
• Crocodylia indet.^[1]
• †Psephophorus calvertensis^[1]

Birds

• †Plotopterum joaquinensis^[1]

Mammals

• †Allodesmus kernensis^[4]
• †Allodelphis pratti^[4]
• †Anchitherium sp.^[1]
• †Argyrocetus joaquinensis^[4]
• †Argyrocetus bakersfieldensis^[4]
• †Desmathyus^[1]
• †Enaliarctidae indet.^[1]
• †Enaliarctos mealsi^[1]
• †Macrodelphinus kelloggi^[4]
• †Miodelphis californicus^[4]
• Otariidae indet.^[4]
• Phocidae indet.^[4]
• Pinnipedia indet.^[1]
• †Pinnarctidion bishopi
• †Squalodontidae indet.^[1]

Invertebrates

Bivalves

• Aequipecten andersoni ^[1]
• Arca montareyanna^[1]
• Chione temblorensis^[1]
• Clementia pertenuis^[1]
• Crassostrea titan^[1]
• Crenomytilus mathewsoni^[1]
• Cytheria matthewsoni^[1]
• Dosinia conradi^[1]
• Dosinia whitneyi^[1]
• Glycymeris septentrionalis^[1]
• Homomya sp.^[1]
• Mactromeris albaria^[1]
• Mytilus sp.^[1]
• Nodipecten estrellanus^[1]
• Pecten bowersi^[1]
• Pecten magnolia^[1]
• Pecten nevadaensis^[1]
• Pecten perrini^[1]
• Pecten sespeensis^[1]
• Pectunculus branneri^[1]
• Phacoides actulineatus^[1]
• Pinna alamedaensis^[1]
• Pycnodonte eldridgei^[1]
• Solen sp.^[1]
• Tellina ocoyana^[1]
• Tellina sp.^[1]
• Trachycardium vaquerosensis^[1]

Gastropods

• Agasoma gravidum^[1]
• Agasoma kerrianum^[1]
• Conus oweni^[1]
• Crepidula princeps^[1]
• Epitonium rugiferum^[1]
• Natica lewisi^[1]
• Neverita callosa^[1]
• Purpura lima^[1]

Scaphopods

• Dentalium sp.^[1]

References

• Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 17 December 2021.

See also

• List of fossiliferous stratigraphic units in California
• Paleontology in California

Notes and References

1. F. M. Anderson. 1911. The Neocene deposits of Kern River, California, and the Temblor Basin. Proceedings of the California Academy of Sciences. 3:73-148
2. K. Shimada, B. J. Welton, and D. J. Long. 2014. A new fossil megamouth shark (Lamniformes, Megachasmidae) from the Oligocene-Miocene of the western United States. Journal of Vertebrate Paleontology. 34(2):281-290
3. Shimada. K.. Chandler. R. E.. Lam. O. L. T.. Tanaka. T.. Ward. D. J.. 2016-10-03. A new elusive otodontid shark (Lamniformes: Otodontidae) from the lower Miocene, and comments on the taxonomy of otodontid genera, including the 'megatoothed' clade. Historical Biology. 29. 5. 704–714. 10.1080/08912963.2016.1236795. 0891-2963.
4. L. E. Wilson. 1935. Miocene marine mammals from the Bakersfield region, California. The Peabody Museum of Natural History Bulletin. 4:1-143