Also known as Poway, in part
Where: San Diego County, California (32.8° N, 117.1° W: paleocoordinates 33.5° N, 103.1° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Scripps Formation (La Jolla Group), Lutetian (47.8 - 41.3 Ma)
• From the lowermost part of the section. A single bed, 50-70 cm thick, approximately 11m below the Friars-Stadium contact. Magnetochron C21n (early Lutetian) at the Computer Media section, according to Walsh et al. (2005). The land-mammal assemblage from locality 3278 contains the insectivore Crypholestes?, a genus apparently endemic to
•southern California and only confidently identifed from strata of early Uintan "Age" (middle Eocene) (Novacek, 1976). The fossil assemblage from locality SDSNH 3278 contains molluscan taxa indicative of the middle Eocene "Transition Stage" of West Coast provincial molluscan biostratigraphy (Clark and Vokes, 1936; as refined by Givens and Kennedy, 1979). In terms of correlation with the standard European section, Givens (1974), Givens and Kennedy (1979), Saul (1983), and Squires (1984, 1987) considered the middle Eocene "Transition Stage" to be correlative with the middle part of the Lutetian Stage.
• bed-level stratigraphic resolution
Environment/lithology: shoreface; fine-grained, medium, shelly/skeletal, gray, conglomeratic sandstone
Size class: macrofossils
Preservation: original aragonite, original calcite
Collected by B.O. Riney in 1985
Primary reference: S. L. Walsh. 1991. Eocene mammal faunas of San Diego County. Pacific Section SEPM 68:161-178 [J. Alroy/J. Alroy/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 16712: authorized by John Alroy, entered by John Alroy on 12.04.1997, edited by Mark Uhen and Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
at the base of the Computer Media section of Walsh et al. 1996
unclassified | |
Gymnolaemata | |
Cephalopoda | |
Aturia sp.3 Bronn 1838 | |
Scaphopoda | |
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Bivalvia | |
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"Nuculana (Saccella) aff. gabbi" = Nuculana gabbii3
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"Tellina castacana" = Tellina (Angulus) castacana3, Tellina cf. scrippensis3, Tellina aff. townsendsis3, "Tellina lebecki" = Tellina (Phyllodina) lebecki3, Tellina soledadensis3
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""Spisula" bisculpturata" = Mactromeris bisculpturata3
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Gastropoda | |
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Zachrysia fraterna n. sp.2
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Chondrichthyes | |
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Reptilia | |
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Mammalia | |
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? Crypholestes sp. Novacek 1980 placental | |
Actinopteri | |
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Labyrinthus | |
Labyrinthus ? sp.2 Kobluk 1979 | |
Anthozoa | |
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Foraminifera | |
Elphidium californicum3 Cook 1959 |