I took some time to walk along the river on campus. The river levels have receded significantly since the heavy rains and snow melt of more than a week ago. What the area looks like now that the floodwaters have receded. Plenty of transported river debris, mostly local area (Dundee) limestone, but also glacial till and other things. Fossil Computer. A brachiopod on a piece of old flooring, and a coral. Plenty of coral pieces (colonial and horn) to be found. Trilobite fragment impression Brachiopod impression at the top. Below that an interesting trace/impression on black shale. From left to right at the bottom: water worn spirifer, high-spired gastropod steinkern, and a small hash containing a fragmentary trilobite pygidium. The nearest Ordovician outcrops are hundreds of kilometres away, and yet here are some very well-traveled and worn Ordovician shale containing the cranidia and moulted bits of Triarthrus. Shiny shell hash. A healthy sized Triarthrus cranidium. Top left is plump, thick-ribbed nautiloid, top right are the trilobite fragments, and below are water-worn brachiopods (one which has a nice calcite crystal inside). Closeup of the trilobite fragments.
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Kane Faucher
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February 2024
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