Where: Guizhou, China (28.0° N, 108.0° E: paleocoordinates 6.7° N, 127.0° E)
• coordinate estimated from map
When: equivalent to the avitus-dilutus zone or the base of chulus var. chulus-chulus var. nanus zone of Richardson & McGregor zone, Xiushan Formation, Aeronian to Aeronian (440.8 - 427.4 Ma)
• This formation is overlain by Permian rock. The plant bed is 2.2 m below the unconformity.
• formation-level stratigraphic resolution
Environment/lithology: marine; lithified, green, yellow siltstone
Size classes: macrofossils, microfossils
Preservation: adpression, permineralized, coalified, original carbon, original sporopollenin
Primary reference: B. Y. Geng. 1986. Anatomy and morphology of Pinnatiramosus, a new plant from the Middle Silurian (Wenlockian) of China. Acta Botanica Sinica 28:667-670 [P. Gensel/M. Kotyk/P. Gensel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 10942: authorized by Pat Gensel, entered by Michele Kotyk on 06.07.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Pinnatiramosus qianensis n. gen. n. sp., Ambitisporites spp., Nodosphaera sp., Tetrahedraletes sp., Leisphaeridia sp., Visbysphaera sp.
Pinnatiramosus qianensis n. gen. n. sp. | |
Retusotriletes | |
Retusotriletes spp. Naumova 1953 | |
Punctatisporites | |
Punctatisporites spp. PotoniƩ and Kremp 1954 | |
Protozoa | |
Bivalvia | |
Pterinopecten cf. cybele scallop | |
Rhynchonellata | |
Apiculiretusispora | |
Apiculiretusispora spp. Streel 1964 |