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Showing results for tags 'parvohallopora'.
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A nice Dictyonema flabelliforme dendroid graptolite from Oslo Fields in Norway. It's Tremadoc, Lower Ordovician in age and is thus maybe around 480 mya. Another angle :
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- amplexopora
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So I thought I had this one figured out, but it looks like I was off. I thought I found Parvohallopora rugosa today, but I found it in the Corryville formation. According to the website I was using to research it, it is not found in that formation. So now I'm guessing Parvohallopora ramosa, but it has ridges like P. rugosa. Can P. ramosa form ridges too? From the descriptions and pictures I've seen, it doesn't have ridges, just monticules (I hope that's the right word) that are sharp and evenly spaced.