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Showing results for tags 'collingswood'.
This summer I was once again able to look for fossils near Newberry, MI in a degrading hill filled with drift. In my research recently, I came across a paper on the Collingwood formation drift in Newberry, and was excited to find exact descriptions of some of the layered rocks found there. I am including photos of one of them, split into its layers...and the orthocones revealed in thos layers. The orthocone has a very thin shell of some kind....they are always found flattened and usually with that line down the center indicating what was once rounded has been squished flat. In the 4.5 " orthoc
I have several pieces similar to this from a drift hill near Newberry, UP, Michigan. I have been told it is Collingswood?, and found very nice pseudogygites impressions there, none whole however, just adding that for the location. At any rate, I have been trying to figure out what these orthocones are. I have several layered from various rocks which are quite small...little cone shaped impressions from 1/2 " to these. all of them are flattened, with that distinctive crush mark down the middle, where the oval part collapsed. My reason for this post, other than still being curious as to what the