by George Langford (1876-1964)
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Calamites goepperti, Annularia stellata, A. sphenophylloides, and C. volkmannia cones, page 21.
Note: the scan of the original page 21 is here.
The original page was letter size but the image may have been cropped slightly.
To view any of these images at high resolution (300 dots per inch instead of 100 as on the full-page images) right-click on the image and select view image.
The links in the 1st & 3rd images from left point to the Mazon Creek Collection of the Illinois State Museum.
| Calamites
goepperti, GL photograph. (No. 15513 in Mazon Creek Collection.) |
Annularia
stellata, GL photograph. |
Annularia
sphenophylloides, GL photograph. (No. 15510 in Mazon Creek Collection.) |
Calamite
cones - Volkmannia. GL photographs. |
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