Oginohama (Jurassic of Japan)

Also known as PGAP 340

Where: Miyagi, Japan (38.4° N, 141.5° E)

• Paleocoordinates: 58.4° N, 151.8° E (Wright 2013)

• coordinate estimated from map

When: Oginohama Formation, Late/Upper Jurassic (161.5 - 143.1 Ma)

• Age based on ammonites

Environment/lithology:

Size class: macrofossils

Primary reference: T. Kimura and T. Ohana. 1989. Late Jurassic Plants from the Oginohama Formation, Oshika Group in the Outer Zone of Northeast Japan (I). Bulletin of the National Science Museum, Tokyo, Series C 15(1):1-24 [A. Rees/A. Rees]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 30198: authorized by Allister Rees, entered by Allister Rees on 02.04.2003

Creative Commons license: CC0 (CC0)

Taxonomic list

• Genus-level assignments and numbers of species are from the PGAP database. Species names are in the process of being entered.
Equisetopsida
 Pinidae - Pinidae
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
 Cycadales - Nilssoniaceae
Pseudoctenis "sp. 1" Seward 1911 cycads
 Cycadales -
Taeniopteris "sp. 1" Brongniart 1828 cycads
Sphenopteridae
  - Sphenopteridae
Sphenopteris "sp. 1" Sternberg 1825
 Bennettitales -
Pterophyllum "sp. 1" Brongniart 1828
Williamsonia "sp. 1" Carruthers 1870
Zamites "sp. 1" Brongniart 1828
Zamites "sp. 2" Brongniart 1828
Zamites "sp. 3" Brongniart 1828
Zamites "sp. 4" Brongniart 1828
Zamites "sp. 5" Brongniart 1828
Zamites "sp. 6" Brongniart 1828
Zamites "sp. 7" Brongniart 1828
Ptilophyllum "sp. 1" Morris 1840
Ptilophyllum "sp. 2" Morris 1840
Ptilophyllum "sp. 3" Morris 1840
Weltrichia "sp. 1" Braun 1843
 Coniferales -
Parasequoia "sp. 1" Krasilov 1967
Eboracia
  -
Eboracia "sp. 1" Thomas 1911
Polypodiopsida
  - Gleicheniaceae
Gleichenites "sp. 1" Göppert 1836
Gleichenites "sp. 2" Göppert 1836
 Equisetales - Equisetidae
Equisetum "sp. 1" Linnaeus 1753 horsetail
  -
Cladophlebis "sp. 1" Brongniart 1849
Cladophlebis "sp. 2" Brongniart 1849
Cladophlebis "sp. 3" Brongniart 1849
 Schizaeales - Polypodiidae
  - Polypodiaceae
Onychiopsis "sp. 1" Yokoyama 1895