Object Record
Images
Metadata
Title |
Achatinoidea sp., Sea Snail Fossil, 1.5-.75 Ma |
Object Name |
Shell, Animal |
Description |
Achatinoidea sp., sea snail fossil 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 pale gray and light brown, embedded in darker brown sediment. There is a band of darker colored sediment that appears near the top of the shell. Underside surface has shell fragments mixed with sediment. |
Date |
1.5 - .75 Ma |
Catalog Number |
2014.009.005 |
Dimensions |
H-0.875 W-1 D-0.875 inches |
Collection |
3D - Biology |
Kingdom |
Animalia (Animals) |
Phylum |
Mollusca (Molluscs) |
Class |
Gastropoda (Snails, limpets) |
Order |
Achatinoidea (Snails) |
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 tried to identify on 4/24/2014 but could not identify Genus and species. |
Search Terms |
Fossils Shellfish Merced Formation South San Francisco |
Subjects |
Fossils Shells Shellfish Snails Marine biology |
Credit line |
Courtesy of Marilyn & Robert Moore |