PBDB Collection

Kuruma: Toarcian, Japan

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Cycadopsida - Cycadales

	Taeniopteris informal sp. 1 leaf

	Taeniopteris informal sp. 2 leaf

	Taeniopteris informal sp. 3 leaf

	Ctenozamites informal sp. 1 leaf

	Nilssonia informal sp. 1 leaf

	Nilssonia informal sp. 2 leaf

	Nilssonia informal sp. 3 leaf

	Nilssonia informal sp. 4 leaf

	Nilssonia informal sp. 5 leaf
Cycadopsida - Cycadales - Nilssoniaceae

	Pseudoctenis informal sp. 1 leaf
Ginkgoopsida - Ginkgoales

	Sphenobaiera informal sp. 1 leaf

	Sphenobaiera informal sp. 2 leaf

	Sphenobaiera informal sp. 3 leaf
Ginkgoopsida - Ginkgoales - Ginkgoaceae

	Ginkgo informal sp. 1 leaf
Ginkgoopsida - Czekanowskiales

	Phoenicopsis informal sp. 1 leaf
Bennettitales

	Pterophyllum informal sp. 1 leaf

	Pterophyllum informal sp. 2 leaf

	Ptilophyllum informal sp. 1 leaf

	Ptilophyllum informal sp. 2 leaf

	Ptilophyllum informal sp. 3 leaf

	Ptilophyllum informal sp. 4 leaf

	Otozamites informal sp. 1 leaf
Coniferales - Podocarpaceae

	Podozamites informal sp. 1 leaf

	Podozamites informal sp. 2 leaf

	Elatocladus informal sp. 1 leaf
Lyginopteridopsida - Lyginopteridales

	Sphenopteris informal sp. 1 leaf
Polypodiopsida - Gleicheniales - Dipteridaceae

	Dictyophyllum informal sp. 1 leaf

	Thaumatopteris informal sp. 1 leaf
Polypodiopsida - Gleicheniales - Matoniaceae

	Phlebopteris informal sp. 1 leaf
Polypodiopsida - Cyatheales - Cyatheaceae

	Coniopteris informal sp. 1 leaf
Polypodiopsida - Polypodiales - Dryopteridaceae

	Ctenis informal sp. 1 leaf
Polypodiopsida - Osmundaceae

	Osmundopsis informal sp. 1 leaf

	Todites informal sp. 1 leaf

	Todites informal sp. 2 leaf

	Todites informal sp. 3 leaf
Polypodiopsida - Marattiales - Marattiaceae

	Marattia informal sp. 1 leaf
Polypodiopsida - Equisetales - Equisetaceae

	Equisetites informal sp. 1 axis

	Equisetites informal sp. 2 axis
Polypodiopsida

	Cladophlebis informal sp. 1 leaf

	Cladophlebis informal sp. 2 leaf

	Cladophlebis informal sp. 3 leaf

	Cladophlebis informal sp. 4 leaf

	Cladophlebis informal sp. 5 leaf

	Cladophlebis informal sp. 6 leaf
Polypodiopsida - Polypodiaceae

	Clathropteris informal sp. 1 leaf
unclassified

	Storgaardia informal sp. 1 leaf

	Cycadites informal sp. 1 leaf
see common names

Geography

Country:	Japan
Coordinates:	37.0° North, 137.8° East (view map)
Paleocoordinates:	47.4° North, 161.8° East (Wright 2013)
Basis of coordinate:	estimated from map

Time

Period:	Jurassic	Epoch:	Early Jurassic
Stage:	Toarcian	10 m.y. bin:	Jurassic 3
*Period:	Early/Lower Jurassic
Key time interval:	Toarcian
Age range of interval:	184.2 - 174.7 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:

Negoya

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 474
Database number:	30202
Authorizer:	A. Rees	Enterer:	A. Rees
Research group:	paleobotany
Created:	2003-04-02 12:40:52	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2003-04-02 12:40:52
Creative Commons license:	CC0

Reference information

Primary reference:

8071.

PGAP 49

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]