MelanieD Posted August 22 Share Posted August 22 What is this? Found on the beach in SoCal. Petrified, and worn from the waves and salt, but still really unique. Crustacean shell? Bone seems a bit of a stretch, given its shape. Link to post Share on other sites
Tidgy's Dad Posted August 22 Share Posted August 22 Part of an oyster shell, I think. 2 Link to post Share on other sites
MelanieD Posted August 22 Author Share Posted August 22 Cool! Thank you! Link to post Share on other sites
DPS Ammonite Posted August 22 Share Posted August 22 (edited) It is a barnacle plate. Notice the semi hollow interior. A. Checa, A. González-Segura, et al. 2020, Microstructure and crystallography of the wall plates of the giant barnacle Austromegabalanus psittacus: a material organized by crystal growth. Materials Science Journal of the Royal Society Interface https://doi.org/10.1098/rsif.2019.0743 https://royalsocietypublishing.org/doi/10.1098/rsif.2019.0743 Edited August 22 by DPS Ammonite 1 4 Link to post Share on other sites
MelanieD Posted August 22 Author Share Posted August 22 That’s super cool! Thank you for this! Link to post Share on other sites
FossilDAWG Posted August 22 Share Posted August 22 And, barnacles are crustaceans so the answer to your thread title is "yes"! Don 4 Link to post Share on other sites
MelanieD Posted August 23 Author Share Posted August 23 Thank you. I’m learning so much, living here. Such fun. 1 Link to post Share on other sites
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