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The mission of the San Mateo County Historical Association is to inspire wonder and discovery
of the cultural and natural history of San Mateo County.

Object Record

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Catalog Number 2014.009.020
Description Buccinum sp., whelk (sea snail) fossil, 1.5-.75 Ma dating from between 1.5 million years ago to .75 million years ago commonly found at low tide in littoral (sandy and muddy bottom) or sub-littoral (open bay, muddy marine) zones. Fossil is light brown overall, with a dark spot (mixed with what appears to be white shell fragments) toward the top of its shell. Growth lines are easily visible. Underside surface has other shell fragments and sediment from within the shell is exposed.
Object Name Shell, Animal
Collection 3D - Paleontology
Title Buccinum sp., Whelk (sea snail) Fossil, 1.5-.75 Ma
Date 1.5 - .75 Ma
Kingdom Animalia (Animals)
Phylum Mollusca (Molluscs)
Class Gastropoda (Snails, limpets)
Order Achatinoidea (Snails)
Family Buccinidae (Whelks)
Genus Buccinum
Species sp.
Inscription Text none
Provenance Fossils taken from Merced Formation collected at Westborough Boulevard at Highway 280 in the late 1970s or early 1980s. (See Yancey 1978, Fig. 2: Artifacts taken from E Stratified Section/D-5929). Most specimens (especially clams) in this collection are not extinct and can still be found in the Bay Area.
Notes Retired Geologist Ken Lajoie identified on 4/24/2014.
Dimensions H-0.875 W-1.25 D-0.875 inches
Search Terms Fossils
Merced Formation
South From San Francisco
South San Francisco
Subjects Fossils
Marine biology