Kandee k. Posted December 30, 2020 Share Posted December 30, 2020 I wanted to know more about them. Scientific name? What period? I appreciate any information Link to comment Share on other sites More sharing options...
Thomas.Dodson Posted December 30, 2020 Share Posted December 30, 2020 Looks like different species of bivalves. Do you have more specific locality information? There are multiple canyons in the San Diego area and it will help to determine the age of these. The general bedrock of the area is Cretaceous and Eocene. Here is a geological map of the San Diego quadrangle for reference. https://ngmdb.usgs.gov/Prodesc/proddesc_84173.htm 2 Link to comment Share on other sites More sharing options...
Kandee k. Posted December 30, 2020 Author Share Posted December 30, 2020 92108 mission valley/ fashion valley Link to comment Share on other sites More sharing options...
Thomas.Dodson Posted December 30, 2020 Share Posted December 30, 2020 Based on that location it is Middle Eocene. I thought the third bivalve looked like Venericardia and it is abundant during the Eocene so this fits. A search for Eocene mollusks of San Diego county yielded this document http://olivirv.myspecies.info/sites/olivirv.myspecies.info/files/Fossil mollusks of San Diego County - Moore%2C Ellen James.pdf I suspect #3 is Venericardia horni, #2 a steinkern of Macrocallista horni, and I'm not sure on #1. Some more images might help. 4 Link to comment Share on other sites More sharing options...
Fossildude19 Posted December 30, 2020 Share Posted December 30, 2020 Just as an FYI - including something for scale in the picture is recommended. Ruler, tape measure, yardstick, meter stick, ... something to let us know the size. I think Mr. Dodson did a very good job here, despite the fact that the fossils look to be internal molds, (which can be difficult to identify due to lack of details). Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
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