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Showing results for tags 'late ordovicium'.
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This weekend I visited again a late ordovicium site north of Oslo, as I now know is the katian period (that applies to the earlier posts on this website which I then, mistakenly, thought was middle ordovicium). First, for the first time I found two graptolites in a limestone, and first time in this site, I m not sure but I think it is graptolites, but it seems so. Next, I found this stone which, I believe, includes an Gompoceras Nautiloid (the brown in the middle) and some nice gastropods. The size of the Nautiloid is about 4,5 cm. And then this small gastropod presered in tre dimensions
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A beautiful small GASTROPOD and a nautiloid with an unusual form
PaleoOrdo posted a topic in Fossil Hunting Trips
In my last fossil hunting trip to a late ordovician site in the Oslo field I found these 2 fossils. One with a small spiral form, size 1 cm in diameter, seems to be a gastropod, and the bigger one what seems to be a nautiloid with an unusual form, size about 7-8 cm long. Anyone seen something like these before? First the small gastropod or maybe it is a nautiloid too? A small part fell of, so one can see if it has a sihuncle or not, I took these photos of it with a microscope, the first most clear in the cross section: And here is the bigger nautiloid, with the (for me) unusual form:
