Helong (Jurassic of China)

Also known as PGAP 160

Where: Jilin, China (42.5° N, 129.0° E: paleocoordinates 43.8° N, 132.2° E)

• coordinate estimated from map

When: Jingouling Formation, Late/Upper Jurassic (163.5 - 145.0 Ma)

Environment/lithology:

Size class: macrofossils

Primary reference: Bur. of Geol. and Min. Resources of Jilin. 1989. Regional Geology of Jilin Province. People's Republic of China Ministry of Geology and Mineral Resources, Geological Memoirs 1(10):1-698 [A. Rees/A. Rees]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 29583: authorized by Allister Rees, entered by Allister Rees on 02.04.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Genus-level assignments and numbers of species are from the PGAP database. Species names are in the process of being entered.
unclassified
  -
Cycadeoideopsida
 Bennettitales -
Otozamites "sp. 1" Braun 1843
Ginkgoopsida
 Ginkgoales -
Ginkgoites "sp. 1" Seward 1919
 Pentoxylales - Pentoxylaceae
Taeniopteris "sp. 1" Brongniart 1828
 Caytoniales - Caytoniaceae
Cycadopsida
 Cycadales -
"Nilssonia "sp. 1"" = Nilsonia, "Nilssonia "sp. 2"" = Nilsonia, "Nilssonia "sp. 3"" = Nilsonia
"Nilssonia "sp. 1"" = Nilsonia Brongniart 1825 cycads
"Nilssonia "sp. 2"" = Nilsonia Brongniart 1825 cycads
"Nilssonia "sp. 3"" = Nilsonia Brongniart 1825 cycads
Pteridopsida
  -
Cladophlebis "sp. 1" Brongniart 1849
Cladophlebis "sp. 2" Brongniart 1849
 Cyatheales - Dicksoniaceae
Coniopteris "sp. 1" Brongniart 1849
 Polypodiales - Dryopteridaceae
Dryopteris "sp. 1" Adanson 1763