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Name:
Lepidodendron Bark and Lepidostrobus Cones
Age: Pennsylvanian
Formation: Cherokee Series
Location: Pella, Iowa
Size: Plate is approximately 7.0'' X 11.0''
This is a wonderful plate of Coal Age fossils from Iowa. On the left side of the plate is a very detailed impression of bark from the Lepidodendron tree. Lepidodendron trees were very important in the formation of coal in the mid-continent area. The diamond-shaped pattern of the bark is very distinct. Each "diamond" represents the point of attachment of a fallen leaf. Also, there are two excellent examples of Lepidostrobus, cones from the Lepidodendron tree, on the slab. Lepidostrobus cones are quite rare in the fossil record, and to have a slab with two cones is extremely uncommon. The Lepidostrobus cones consisted of a central stalk crowded with spirally arranged bracts, the upper surface of each bearing a single spore case. Both of the cones have great form and exhibit fine detail. The fossils have outstanding color and contrast and are nicely presented on the large, natural plate of matrix. This is a very displayable plate of fossils from the Lepidodendron tree.
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