PBDB Collection

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

unclassified

	Eboracia informal sp. 1 leaf
Polypodiopsida - Schizaeales - Schizaeaceae

	Acrostichopteris informal sp. 1 leaf

	Acrostichopteris informal sp. 2 leaf
Polypodiopsida - Gleicheniaceae

	Gleichenites informal sp. 1 leaf

	Gleichenites informal sp. 2 leaf
Polypodiopsida

	Cladophlebis informal sp. 1 leaf

	Cladophlebis informal sp. 2 leaf

	Cladophlebis informal sp. 3 leaf
Polypodiopsida - Polypodiaceae

	Onychiopsis informal sp. 1 leaf
Polypodiopsida - Equisetales - Equisetaceae

	Equisetum informal sp. 1 axis
Coniferales

	Parasequoia informal sp. 1 leaf
Bennettitales

	Weltrichia informal sp. 1

	Williamsonia informal sp. 1

	Pterophyllum informal sp. 1 leaf

	Ptilophyllum informal sp. 1 leaf

	Ptilophyllum informal sp. 2 leaf

	Ptilophyllum informal sp. 3 leaf

	Zamites informal sp. 1 leaf

	Zamites informal sp. 2 leaf

	Zamites informal sp. 3 leaf

	Zamites informal sp. 4 leaf

	Zamites informal sp. 5 leaf

	Zamites informal sp. 6 leaf

	Zamites informal sp. 7 leaf
Lyginopteridopsida - Lyginopteridales

	Sphenopteris informal sp. 1 leaf
Equisetopsida - Cheirolepidiaceae

	Cupressinocladus informal sp. 1 leaf

	Cupressinocladus informal sp. 2 leaf
Cycadopsida - Cycadales - Nilssoniaceae

	Pseudoctenis informal sp. 1 leaf
Cycadopsida - Cycadales

	Taeniopteris informal sp. 1 leaf

	Taeniopteris informal sp. 1 leaf

	Nilssonia informal sp. 1 leaf

	Nilssonia informal sp. 2 leaf

	Nilssonia informal sp. 3 leaf
see common names

Geography

Country:	Japan	State/province:	Miyagi
Coordinates:	38.4° North, 141.5° East (view map)
Paleocoordinates:	58.4° North, 151.8° East (Wright 2013)
Basis of coordinate:	estimated from map

Time

Period:	Jurassic	Epoch:	Late Jurassic
10 m.y. bin:	Jurassic 5-6
*Period:	Late/Upper Jurassic
Key time interval:	Late Jurassic
Age range of interval:	161.5 - 143.1 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Oginohama
Stratigraphy comments: Age based on ammonites

Lithology and environment

Taphonomy

Size of fossils:

macrofossils

Collection methods and comments

Reason for describing collection:	biostratigraphic analysis
Taxonomic list comments:Genus-level assignments and numbers of species are from the PGAP database. Species names are in the process of being entered.

Metadata

Also known as:	PGAP 340
Database number:	30198
Authorizer:	A. Rees	Enterer:	A. Rees
Research group:	paleobotany
Created:	2003-04-02 12:40:51	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2003-04-02 12:40:51
Creative Commons license:	CC0

Reference information

Primary reference:

8072.

PGAP 100

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]