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Showing results for tags 'Stereolasma'.
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Mediospirifer posted a topic in Fossil IDI've been going through the fossils I collected over the summer, trying to identify them. I have a lot of horn corals, several of which look like they could be either Streptelasma ungula or Stereolasma rectum: Several of them have matrix filling the calyx and obscuring the detail. With or without that, though, I don't know how to tell them apart! Except that my fossil guide lists Stereolasma as potentially being a little larger. This only rules out a couple of my specimens, though. Can anyone tell me what the diagnostic features of both species are?