Where: Hebei, China (40.0° N, 118.0° E: paleocoordinates 20.3° N, 89.3° E)
• small collection-level geographic resolution
When: Taiyuan Formation, Asselian to Asselian (298.9 - 290.1 Ma)
• The Taiyuan formation is considered to be of P1/1 (super and subscript) age in the Chinese stratigraphical system (Tian et al. 1996) correlating with the Asselian-early Sakmarian stages of the Early Permian elsewhere.
• bed-level stratigraphic resolution
Environment/lithology: mire or swamp; gray, green, calcareous tuff and gray mudstone
•
•Permineralized plant fossils occur in fine-grained grey-green tuff in which the 3D structure and tissue compositions of the plant fossils are preserved. The tuff comprises predominantly sub-angular feldspar crystals in an early stage diagenetic carbonate matrix
Size class: macrofossils
Preservation: adpression, permineralized, original carbon, replaced with calcite
Collection methods: surface (float), chemical, peel or thin section,
Primary reference: J. Hilton, S.-J. Wang, J. Galtier and C.-S. Li. 2001. An Early Permian plant assemblage from the Taiyuan Formation of northern China with compression/impression and permineralized preservation. Review of Palaeobotany and Palynology 114:175-189 [H. Sims/H. Lindon/J. Cassara]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 21185: authorized by Hallie Sims, entered by Heather Lindon on 20.06.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
| Cladoxylopsida | |
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| |
| Equisetopsida | |
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Sphenophyllum sp. König 1825 | |
| Calamitopsida | |
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Astromyelon sp. Williamson 1883
Arthroxylon sp. Reed 1952 | |
| Sphenopsida | |
|
Lobatannularia sp. Kawasaki 1927 | |
| Lepidocarpaceae | |
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Achlamydocarpon sp. Schumacker-Lambry 1966 | |
| Pinopsida | |
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| Pachytesta | |
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Pachytesta sp. Brongniart 1828 | |
| Polypodiopsida | |
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Psaronius sp. Cotta 1832 | |