Bituminous claystone, Lower Jurassic, Hesselberg, Middle Franconia. Sedimentary rock of very thin laminated layers (particles less than 0,0002 mm). Rock formation is known for its rich fossil findings, ex. Ichthyosaur.
Informations
- Auteur
- Original uploader was Oswald Engelhardt
- Licence
- CC BY-SA 3.0
- Source
- Wikimedia
Associé à
Jurassic
fossil
Ichthyosauria
formation