Goody 0 Report post Posted May 16 Hello, SF Bay Area native here, totally new to this forum and to collecting anything other than rocks found on the beach. On one excursion just after a stormy high tide on a private access beach south of Pomponio, I came across these two cetacean(?) fossils(?) washed ashore, each of which weigh ~5+ lbs. Any further info anybody could offer would be great! Share this post Link to post Share on other sites
ynot 6,838 Report post Posted May 20 On 5/15/2019 at 6:01 PM, Goody said: I came across these two cetacean(?) fossils(?) washed ashore, each of which weigh ~5+ lbs. Any further info anybody could offer would be great! If You are looking for IDs on these pieces You should take pictures from all sides and with a scale, then post them in the "fossil ID" section. Share this post Link to post Share on other sites
Goody 0 Report post Posted May 30 Will do, thanks for your help! Share this post Link to post Share on other sites
abyssunder 5,314 Report post Posted May 30 These give me a geological vibe, but please wait other opinions. Share this post Link to post Share on other sites
DPS Ammonite 2,005 Report post Posted May 30 See if the white rock is limestone by seeing if it fizzes in acid. Both Franciscan limestone and marble occur nearby and contain no macrofossils. In fact, UC Santa Cruz has at least two caves in marble. Share this post Link to post Share on other sites
