|Description||Annelida sp., worm colony 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 comprised of both worm colony fossilized remains (darker brown coloring) and castings (light gray coloring). Cylindrical and spherical shapes are easily identifiable on top surface. Underside surface appears to contain small shell fragments and a few worm fossils.|
|Object Name||Shell, Animal|
|Collection||3D - Biology|
|Title||Annelida sp., Worm Colony Fossil, 1.5-.75 Ma|
|Date||1.5 - .75 Ma|
|Phylum||Annelida (Segmented Worms)|
|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.|
Retired Geologist Ken Lajoie identified on 4/8/2014.
Annelida sp. (Common name: Worm) still thrives in the Bay Area.
|Dimensions||H-2.25 W-3.5 D-3 inches|
South San Francisco