This slab features a beautifully preserved trilobite trackway of the species Cruziana furcifera from the Ordovician period in Portugal. The traces originate from a temporary outcrop near Penha Garcia. Cruziana furcifera is characteristic of the Armorican Quartzite, with similar finds also known from Spain. |
| |
| | Location: | Penha Garcia, Idanha-a-Nova, Distrikt Castelo Branco, Portugal | |
| Size Plate : | about 114 x 91 mm |
| Age: | Lower Ordovician ,?Floium Armorican Quartzite Formation (about. 470 . Ma) |
