Tochikubo Formation

Tochikubo Formation
Stratigraphic range: Late Jurassic Oxfordian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Somanakamura Group
Underlies	Nakanosawa Formation
Overlies	Yamagami Formation
Area	Japan
Thickness	Up to 350 m
Lithology
Primary	Sandstone, Shale
Location
Country	Japan
Extent	Abukuma Highlands, eastern Honshu

The Tochikubo Formation is a Jurassic geologic formation in northern Honshu, Japan, dating to the Oxfordian stage of the Late Jurassic. Fossil ornithopod tracks have been reported from the formation. ^[1] As well as the Bennettitaleans Kimuriella ^[2] and Ohaniella. ^[3]

See also

• Earth sciences portal
• Paleontology portal
• Dinosaurs portal

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with ornithischian tracks
    • Ornithopod tracks

Footnotes

1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
2. Pott, Christian; Takimoto, Hideo (2022-04-01). "Kimuriella gen. nov. (Bennettitales), a Whole-Plant Bennettite from the Oxfordian (Upper Jurassic) Tochikubo Formation of Shidazawa, Minamisōma, Fukushima Prefecture, Northeast Japan" . Paleontological Research. 26 (2). doi: 10.2517/PR200020 . ISSN   1342-8144.
3. Pott, C.; Takimoto, H. (2025). "Ohaniella gen. nov., a new whole-plant bennettite from the Oxfordian (Upper Jurassic) Tochikubo Formation of Shidazawa, Fukushima, northeast Japan". Paleontological Research. 29 (1): 316–331. doi: 10.2517/prpsj.250010 .

References

• Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp.  ISBN   0-520-24209-2.