Anxi (Permian of China)

Also known as PGAP 12142

Where: Gansu, China (40.5° N, 95.7° E: paleocoordinates 27.0° N, 84.0° E)

• coordinate estimated from map

When: Fangshankou Formation, Lopingian (259.9 - 252.2 Ma)

Environment/lithology:

Size class: macrofossils

Collection methods: Unit is very thick -- 3764 m (no marine in this section)

Primary reference: Bur. of Geol. and Min. Resources of Gansu. 1989. Regional Geology of Gansu Province. People's Republic of China Ministry of Geology and Mineral Resources, Geological Memoirs 1(19):1-692 [A. Rees/A. Rees/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 29956: authorized by Allister Rees, entered by Allister Rees on 02.04.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• List from p. 207-208. Genus-level assignments and numbers of species are from the PGAP database. Species names are in the process of being entered.
unclassified
  -
Polypodiopsida
 Equisetales - Equisetidae
Phyllotheca "sp. 1" Brongniart 1828
Calamites "sp. 1" Suckow 1784
Pteropsida
 Filicinae -
Pecopteris "sp. 1" Brongniart 1822
Pecopteris "sp. 2" Brongniart 1822
Cordaitopsida
  - Cordaitaceae
Noeggerathiopsis "sp. 1" Feistmantel 1879
 Coniferales -
Desmiophyllum "sp. 1" Lesquereux 1878
Pinopsida
 Cordaitanthales -
Cordaites "sp. 1" Unger 1850
Peltaspermopsida
 Peltaspermales - Peltaspermaceae
Callipteris "sp. 1" Brongniart 1849
Callipteris "sp. 2" Brongniart 1849
Callipteris "sp. 3" Brongniart 1849
Sphenopsida
  -
Paracalamites "sp. 1" Zalessky 1927
Cycadopsida
 Trigonocarpales - Alethopteridaceae
Compsopteris "sp. 1" Zalessky 1934 cycads
 Cycadales -
Taeniopteris "sp. 1" Brongniart 1828 cycads