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Showing results for tags 'sea cucumber'.
Found 5 results
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I have been fortunate to hunt Mazon Creek fossils for nearly 40 years. I have collected Many tens of thousands of concretions. I have also purchased premium specimens from other collectors. In the past, I have posted many of these specimens on the forum. I have decided to start posting more in depth descriptions of some of the amazing animals that can be found in the MC deposit. All specimens that I will post are from my personal collection. The first animal that I will highlight is the holothurian or sea cucumber Achistrum sp. Sea cucumbers are a common animal in toda
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- mazon creek
- sea cucumber
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Amateur fossil find 30 years ago leads to crucial evolutionary discovery today
OutrageousFennel posted a topic in Fossil News
A 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-
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- haplophrentis reesei
- echinoderm
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These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since July 10
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Hello, here are two purported sea cucumbers among some Mazon Creek material I purchased some time ago. The first, better preserved specimen (with counterpart) was labeled without genus, the second specimen was labeled as Achistrum sp. when I got them. Is this correct? The second one looks like some Achistrum material depicted in the net, though my specimen is small (about 2 cm) and possibly only a fragment. However, I don't see anything specific in this specimen that reminds me of a sea cucumber, but the specimens "in the net" (google picture search) are of similar "structure" (except that t
