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Showing results for tags 'calyxs'.
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From an old collection, no data, may be from USA or Europe. The conical calyx has a two-inch diameter, a recessed attachment for the stem, and five very broad attachment points for arms. the calyx has a hole through the center which is surrounded by concentric layers of shell so that, except for the central hole, it is solid (unlike any other crinoid I have seen or read about.) The ovoid specimen is probably from the same locality. It apparently also is almost solid, has five bowl shaped arm attachment points and an irregular central bowl. The base is recessed but covered in limestone. The holdfast is about 3 1/2 inches tall with a very irregular growth pattern. All three have 'worm' tubes attached; the ovoid one has attached bivalve? shells and the holdfast and conical calyx have bore holes from exposure on the sea floor. I need to move pictures from my phone... archive (4).zip
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Another search for Burlington Formation crinoid fossils
Jackson g posted a topic in Fossil Hunting Trips
Today's the first nice day we've had all week here, and on top of that lucky I got the rest of the week off of work. I decided to go out and search for crinoids for a few hours. Last time I went out I did recon on a favorite spot of mine, and I would say that effort paid off today. I ended up hitting a new section at the area that is usually underwater. Well anyway, heres the finds. Only about half are cleaned up. Starting with Azygocrinus rotundus Macrocrinus verneuilianus Uperocrinus pyriformis Actinocrinites multiradiatus Eutrochocrinus christyi Crinoid calyx (chert layer, unidentifiable) Uperocrinus sp? I also found a very unusual blastoid steinkern with an unusually long thin body. It's from Burlington chert, and I believe it to be a Metablastus lineatus steinkern. Will never know though. Well that's all I dragged home today. Hope you all have had a great Thanksgiving today if you celebrate it.- 7 replies
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- actinocrinites
- azygocrinus
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