Where: Douglas County, Kansas (38.8° N, 95.4° W: paleocoordinates 4.6° S, 29.8° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Lawrence Shale Formation, Pennsylvanian (323.2 - 298.9 Ma)
• bed-level stratigraphic resolution
Environment/lithology: lagoonal; shale
Size class: macrofossils
Preservation: mold/impression, adpression
Primary reference: A. A. Cridland and J. E. Morris. 1963. Taeniopteris, Walchia and Dichophyllum in the Pennsylvanian System of Kansas. University of Kansas Science Bulletin 44:71-85 [H. Sims/S. Ostrowski]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 24638: authorized by Hallie Sims, entered by Heather Lindon on 13.08.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
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| Equisetopsida | |
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| Sphenopteridae | |
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Sphenopteris sp. Sternberg 1825 | |
| Sigillariaceae | |
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Cordaianthus sp. Grand'Eury 1877
Cordaicarpus sp. Geinitz 1862 | |
| Ginkgoopsida | |
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| Pinopsida | |
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Cordaites sp. Unger 1850 | |
| Aphlebia | |
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Aphlebia sp. Presl 1838 | |
| Pteropsida | |
"Alethopteris grandini" = Pecopteris (Alethopteris)
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| Polypodiopsida | |
Asterotheca arborescens, Asterotheca cf. hemiteloides, Ptychocarpus candolliana, Ptychocarpus feminaeformis, Acitheca polymorpha
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