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FERNS
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MISSOURI
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| Very Nice Asterophyllites In Concretion |
| Stock Number FPFMI13 |
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Name:
Asterophyllites longifolius
Age: Pennsylvanian
Formation: Braidwood Formation
Location: Johnson County, Missouri
Size: Concretion is 3.5 inches long.
In the Pennsylvanian of Missouri, a gigantic rush-like plant named Calamites grew up to fifty feet tall. The leaves of the plant were always borne in whorls, entirely surrounding the slender branches. This specimen, Asterophyllites longifolius, is a nice example of those leaves. This species is similar to A. equisetiformis except that the leaves are twice as long. This fossil plant is preserved in a siderite concretion. Both halves of the concretion are present. The fossil exhibits fine detail - the long individual leaves are easily seen. The dark brown plant contrasts nicely with the yellowish matrix. This is a very fine specimen of Asterophyllites longifolius.
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