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Monterey Formation (Miocene) shell fossils - Arroyo Seco Canyon - Central California Coast Range

ezeemonee

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ezeemonee New Member

ezeemonee

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Found in Miocene period Monterey formation in Arroyo Seco canyon of Central California Coast Range.  Trochita is an undescribed species known from this formation.  Others are mostly Brachiopods (Discinisca lamellosa) which surprisingly is not extinct and still lives in some oceans, Scallops (Pectenidae), Venus Clams (Veneridae), Ark Shells (Anadara/Scapharca), and an unknown Moon Snail (Nacticidae).  Most found in 2024, some in 2019.  Added a few pics of the nice scenery in the canyon. 

 

Trochita specimen is noteworthy as being in good condition with surface detail and may get donated to the California Academy of Sciences collection.

 

ArroyoSecoMontereyFormation.thumb.jpeg.1391acd98a483f99444981dd7b7d7732.jpegArroyoSecoMontereyFormationVenusClam.thumb.jpeg.d593128e9d53de63cd5c67a2b35f664b.jpegArroyoSecoMontereyFormationVenusClam3.thumb.jpeg.abd14a3a48353cf57053878eaaaf8e20.jpegArroyoSecoMontereyFormationVenusClam2.thumb.jpeg.73739e3df42c38d22940a759b0b6abef.jpegArroyoSecoMontereyFormationTrochita.thumb.jpeg.93127fe98600ebcf7e37ce4f457fdeac.jpegArroyoSecoMontereyFormationTrochita2.thumb.jpeg.de30b0e6042ff2720ab20be166a5db77.jpegArroyoSecoMontereyFormationScallops7.thumb.jpeg.b57172699b765eaf4b2bb93b6dd76224.jpegArroyoSecoMontereyFormationScallops6.thumb.jpeg.c6c91d6e40063783243b1aacd1b2dc37.jpegArroyoSecoMontereyFormationScallops5.thumb.jpeg.d2f87cb88a9cf4ad9cf3beca1b13f5af.jpegArroyoSecoMontereyFormationScallops4.thumb.jpeg.16272da6b454ebc77a8ecfaad0dec70d.jpegArroyoSecoMontereyFormationScallops9.thumb.jpeg.54e3b0bf93a4ff8922949736b9c4a32a.jpegArroyoSecoMontereyFormationScallops8.thumb.jpeg.6acfefb26579f1a017cac2ec70808965.jpegArroyoSecoMontereyFormationScallop.thumb.jpeg.7bae731951775153f9f9e1bdc029e881.jpegArroyoSecoMontereyFormationScallop2.thumb.jpeg.507028ff58dcdf1bd69cb1a0ddc5770e.jpegArroyoSecoMontereyFormationDisciniscalamellosa.thumb.jpeg.5fb11c60b8080d126dfac348d0f03cb6.jpegArroyoSecoMontereyFormationDisciniscalamellosa6.thumb.jpeg.4d9236b5d79ec9b0896f21d4cdb3031e.jpegArroyoSecoMontereyFormationDisciniscalamellosa5.thumb.jpeg.b7b48e59d988db3a276d74aa50a52836.jpegArroyoSecoMontereyFormationDisciniscalamellosa4.thumb.jpeg.1477649d13b782f60c21665fa066f9d5.jpegArroyoSecoMontereyFormationDisciniscalamellosa3.thumb.jpeg.8678b1b17b3682334d248d488f4771e3.jpegArroyoSecoMontereyFormationDisciniscalamellosa2.thumb.jpeg.ad92bd1ca818de1ad06ce70352bf9e6c.jpegArroyoSecoMontereyFormationAnadara.thumb.jpeg.0786d2875b0c0aec229206f93a69c148.jpegArroyoSecoMontereyFormation5.thumb.jpeg.28e5b8b7414ae06546c24eaffa8d0e1d.jpegArroyoSecoMontereyFormation3.thumb.jpeg.b7aab23b6bf1e2ceb9bcd2110eb7967e.jpegArroyoSecoMontereyFormation2.thumb.jpeg.7969faa8e718eae996f70b5ff0889fa4.jpegArroyoSecoDisciniscalamellosa7.thumb.jpeg.9ee3e814cc29c748b50ba0e562b46f20.jpegArroySecoUnknownMoonSnailGastropod.thumb.jpeg.62409786be676c325c6e15ed947a1e59.jpegArroyoSecoPectinDiscus.thumb.jpeg.3b9eb42c6bba547dc473a58e79ecc894.jpegArroyoSecoPectinDiscus2.thumb.jpeg.8423fc3e7fdf184a07b33bd834f0daa8.jpeg

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Jeffrey P Regular Member

Jeffrey P

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Wonderful bivalves and brachiopods and beautiful location. Thanks for sharing. 

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  • 3 weeks later...
Tidgy's Dad Regular Member

Tidgy's Dad

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Those Discinisca lamellosa are stunning! :envy:

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Life's Good!

Tortoise Friend.

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