OregonFossil Posted March 12, 2021 Share Posted March 12, 2021 My wife found this in some talus. It is 5mm long axis. Image was taken with a G9/Oly 60mm with extension tubes (2x). Is this a Crinoid? Looks like the feeding part. Any Ideas on what this fossils is? Keasey Formation, late Eocene. Mostly Mollusk and Gastropods however Crinoids are listed as being found in this location but rare. Link to comment Share on other sites More sharing options...
Top Trilo Posted March 12, 2021 Share Posted March 12, 2021 Looks to me like a crinoid holdfast, 1 1 “If fossils are not "boggling" your mind then you are simply not doing it right” -Ken (digit) "No fossil is garbage, it´s just not completely preserved” -Franz (FranzBernhard) "With hammer in hand, the open horizon of time, and dear friends by my side, what can we not accomplish together?" -Kane (Kane) "We are in a way conquering time, reuniting members of a long lost family" -Quincy (Opabinia Blues) "I loved reading the trip reports, I loved the sharing, I loved the educational aspect, I loved the humor. It felt like home. It still does" -Mike (Pagurus) “The best deal I ever got was getting accepted as a member on The Fossil Forum. Not only got an invaluable pool of knowledge, but gained a loving family as well.” -Doren (caldigger) "it really is nice, to visit the oasis that is TFF" -Tim (fossildude19) "Life's Good! -Adam (Tidgy's Dad) Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted March 12, 2021 Share Posted March 12, 2021 +1 for holdfast! Also, how many times do we think that image has been sent to TFF @Top Trilo?... 1 ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
OregonFossil Posted March 12, 2021 Author Share Posted March 12, 2021 Thank you. 1 Link to comment Share on other sites More sharing options...
Top Trilo Posted March 12, 2021 Share Posted March 12, 2021 28 minutes ago, IsaacTheFossilMan said: +1 for holdfast! Also, how many times do we think that image has been sent to TFF @Top Trilo?... At least a few 1 “If fossils are not "boggling" your mind then you are simply not doing it right” -Ken (digit) "No fossil is garbage, it´s just not completely preserved” -Franz (FranzBernhard) "With hammer in hand, the open horizon of time, and dear friends by my side, what can we not accomplish together?" -Kane (Kane) "We are in a way conquering time, reuniting members of a long lost family" -Quincy (Opabinia Blues) "I loved reading the trip reports, I loved the sharing, I loved the educational aspect, I loved the humor. It felt like home. It still does" -Mike (Pagurus) “The best deal I ever got was getting accepted as a member on The Fossil Forum. Not only got an invaluable pool of knowledge, but gained a loving family as well.” -Doren (caldigger) "it really is nice, to visit the oasis that is TFF" -Tim (fossildude19) "Life's Good! -Adam (Tidgy's Dad) Link to comment Share on other sites More sharing options...
Fossildude19 Posted March 12, 2021 Share Posted March 12, 2021 Lower Tertiary Crinoids from North Western Oregon. Exceptional crinoid occurrences and associated carbonates of the Keasey Formation (Early Oligocene) at Mist, Oregon, USA 1 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...
FossilDAWG Posted March 12, 2021 Share Posted March 12, 2021 I doubt it is a holdfast. The abulacra (feeding grooves) are visible, which suggests the area around the mouth at the base of the arms. I think the "feeding part" suggestion is correct. Holdfasts are more like roots, or a plated disk attached to a firm surface such as a hardground. However I think the Keasy isocrinoids had "prehensile" stems that tapered to a point and could be wrapped around seaweed or other objects to keep the crinoid tethered, rather than a "holdfast" per se. Don 3 Link to comment Share on other sites More sharing options...
OregonFossil Posted March 12, 2021 Author Share Posted March 12, 2021 The "exceptional" Crinoids are found near Mist, Oregon. They were commercially dug and caused some issue. Additionally the only time you can safely access the location in late summer when the water in the river is very low. 1 Link to comment Share on other sites More sharing options...
IsaacTheFossilMan Posted March 12, 2021 Share Posted March 12, 2021 2 hours ago, Top Trilo said: At least a few At least once, I say! ~ Isaac; www.isaactfm.com "Don't move! He can't see us if we don't move!" - Alan Grant Come to the spring that is The Fossil Forum, where the stream of warmth and knowledge never runs dry. Link to comment Share on other sites More sharing options...
FossilDAWG Posted March 12, 2021 Share Posted March 12, 2021 I recall hearing that a landslide had covered the productive site. Of course that might have been a rumor propagated to discourage "competition". Anyway the site is on private property and I think the owners were not happy with the scale of the digging. Don 1 Link to comment Share on other sites More sharing options...
OregonFossil Posted March 12, 2021 Author Share Posted March 12, 2021 There is another outcrop near a river.....but as I found as I restarted my Paleo efforts many of the locations along roads in Oregon are dangerous. I've attach a sample - Loaded Log trucks travel this road (and somewhat fast than was is same IMHO) and cold rivers kill folks in the spring. I collected talus about 15' past that large branch across the ditch. This is the Miocene Pittsberg Bluff formation. Link to comment Share on other sites More sharing options...
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