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OutrageousFennel posted a topic in Fossil NewsA family of amateur fossil hunters from Utah -- the Gunthers -- found this fascinating fossil in the Spence Gulch shale part of Utah in 1992, and shared it with Richard Robison at the University of Kansas. The mystery of what it was went unsolved for nearly 30 years, until a team at Ohio State uncovered the telltale circle that showed the creature had attached to a shelly surface via a basal disc. It's the earliest/one of the earliest known specimens of a mat-sticker making the evolutionary move to attaching to a harder surface--a leap that makes some of our modern-day echinoderms, including s
I got back last week from a two week collecting trip in Idaho, Utah and Wyoming with my wife and our two friends Bill and Jean. In addition to collecting, sunstones, topaz, agates and fluorescent minerals we collected Cambrian,Silurian, Jurassic, Cretaceous and Eocene fossils. We collected trilobites outside Delta, Utah and Liberty, Idaho, Marine fossils in Emigration and Riley Canyons in Utah and fossil fish in Kemmerer, Wyoming. The results of the trip was 15 boxes shipped home and many hours of preparation ahead of me. My friends came away with 13 boxes of fossils. If anyone wants tips for
One more to post to see if someone more knowledgeable than me can verify. These were collected from Spence Gulch. I think that the first and second ones are Amacephalus idahoense. First is about 1-1/4" long and second is about 3/4" long. The third trilobite is very small at about 1/4" long bit looks to me like Zacanthoides idahoensis (I sure wish that one was full grown). Preservation on these is not the best, but you take what you get and these are my first Spence Shale fossils.
Recently collected these trilobites at Spence gulch along with a few more. The all seem very fragile. 1st picture is of the trilobite and second is the cast. Anyone experienced with these and have any ideas about what to do to prep from here? I am concerned about doing more damage than help and was just considering putting a light coat of PVA on them as is. I think these are Amacephalus but not sure what species.