|
Species |
Trigonia sp. |
|
Geological Period |
Jurassic ≈ 180 ma |
|
Origin |
Peniche, Portugal |
|
Size |
5.0 - 6.0cm |
Trigonia fossils in good condition. Each unit corresponds to a single valve.
Trigonia is an extinct genus of bivalves that lived in the sea in shallow water. They present external asymmetry, with parallel grooves that run along their surface.
These organisms fed on the phytoplankton present in the ecosystem.
The piece you receive may differ slightly from the photo shown, as the fossils are natural and no piece is identical. The size is approximate.