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Showing results for tags 'faecal pellets'.
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Possible fossil coprolites in Fossil Janthina shell. New Zealand, Kaawa Formation, Opoitian, Pliocene. What was living in this Janthina that produced these faecal pellets? Hermit crab? other Crustacean? Are there any other similar fossils or living examples?
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- coprolites?
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I recently found this rather good (for the area) and rare goniatite, probably Girtyoceras sp. The innermost half of the living chamber has a mass of small rods which a few knowledgeable friends have suggested are faecal pellets from something that took up residence. It's in an ironstone nodule from a Brigantian (U. Mississippian) shale in Co. Durham, N.E. England. Fairly shallow water, with a diverse fauna of brachiopods, bivalves, bryozoa, small corals, crinoids etc., often broken up. I haven't seen any arthropods apart from small Paladin trilobites which are quite common. At first I thought they were iron mineral alteration structures (e.g. goethite) but I can't see any in other similarly preserved specimens from the same locality and I was quickly persuaded by the pellets idea. I'd be grateful for any suggestions or similar examples. Scale in mm Inside venter Other side - none visible here.
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- faecal pellets
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