Iwamura (Jurassic of Japan)

Also known as PGAP 475

Where: Japan (36.6° N, 139.2° E: paleocoordinates 47.9° N, 149.6° E)

• coordinate estimated from map

When: Iwamura Formation, Early/Lower Jurassic (201.3 - 174.1 Ma)

Environment/lithology:

Size class: macrofossils

Primary reference: T. Kimura, T. Ohana, and M. Tsujii. 1988. Early Jurassic plants in Japan. Part 8. Supplementary description and concluding remarks. Transactions and Proceedings of the Palaeontological Society of Japan (151)501-522 [A. Rees/A. Rees]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 30199: 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 -
Zamites "sp. 1" Brongniart 1828
Zamites "sp. 2" Brongniart 1828
Otozamites "sp. 1" Braun 1843
Pterophyllum "sp. 1" Brongniart 1828
Pterophyllum "sp. 2" Brongniart 1828
Peltaspermopsida
 Peltaspermales - Peltaspermaceae
Pinopsida
 Pinales - Podocarpaceae
Equisetopsida
 Equisetales - Equisetaceae
Equisetites "sp. 1" Sternberg 1833
Ginkgoopsida
 Ginkgoales - Ginkgoaceae
Ginkgo "sp. 1" Linnaeus 1771 ginkgo
Cycadopsida
 Cycadales -
"Nilssonia "sp. 1"" = Nilsonia, "Nilssonia "sp. 2"" = Nilsonia, Pseudoctenis "sp. 1"
"Nilssonia "sp. 1"" = Nilsonia Brongniart 1825 cycads
"Nilssonia "sp. 2"" = Nilsonia Brongniart 1825 cycads
Pseudoctenis "sp. 1" Seward 1911 cycads
Pteridopsida
 Osmundales - Osmundaceae
Todites "sp. 1" Seward 1900
Todites "sp. 2" Seward 1900
Todites "sp. 3" Seward 1900
  -
Cladophlebis "sp. 1" Brongniart 1849
Cladophlebis "sp. 2" Brongniart 1849
Cladophlebis "sp. 3" Brongniart 1849
Cladophlebis "sp. 4" Brongniart 1849
Cladophlebis "sp. 5" Brongniart 1849
Cladophlebis "sp. 6" Brongniart 1849
Cladophlebis "sp. 7" Brongniart 1849
 Gleicheniales - Dipteridaceae
Hausmannia "sp. 1" Dunker 1846
Thaumatopteris "sp. 1" Goeppert 1841
Calamitaceae
  - Calamitaceae
Clathropteris
  -
Clathropteris "sp. 1" Brongniart 1828