10.7" DINOSAUR FOOTPRINTS 4 Tracks on Slate 3-Toed Grallator Granby MA for sale For Sale
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10.7" DINOSAUR FOOTPRINTS 4 Tracks on Slate 3-Toed Grallator Granby MA for sale:
- 10.7" DINOSAUR FOOTPRINTS 4 Tracks on Slate 3-Toed Grallator Granby MA for sale
Granby, Massachusetts, USASize:
10.7" x 8.7" x 0.5"Suggested Stand:
X-Large 8" Easel Stand
Here 4 very impressive dinosaur footprints, beautifully preserved in a reddish-gray siltstone matrix. The main track is a clear impression which about 3/8" deep, and it was made on medium soft mud, so the details of the impression are fairly clear. This track is the actual depression made by the dinosaur's foot in the mud. There is a second track on the front side, not quite as clear, with a good toeprint showing a claw, and on the back side are 2 positive casts of the third and fourth tracks, which wereone layer deeper in the fossil record. These are what is called trace fossils, the signs that 4 meat eating Grallator cuneatys once passed by. This kind of dinosaur was about 8-10 foot tall, and lived in this part of Massachusetts during the Early Jurassic period, about 205 million years ago.