Paleozoic flora, including calamites. From "Figures of Characteristic British Fossils" by W. H. Baily, 1867. A calamite is any member of the lineage of giant horsetails, which belonged to the Sphenopsida, an important part of late Paleozoic vegetation. Calamites grew to be tree-sized plants with but with whorled branches seen in modern horsetails. A calamite root can be seen at top right. The Paleozoic Era is the earliest of three geologic eras of the Phanerozoic Eon, spanning from roughly 541 to 252.17 million years ago.
RMID:Image ID:2BE0HW3
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Science History Images / Alamy Stock PhotoImage ID:
2BE0HW3File size:
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2430 x 3796 px | 20.6 x 32.1 cm | 8.1 x 12.7 inches | 300dpiDate taken:
5 February 2015Photographer:
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