Fossili

Carboniferous Mississippian, Chesterian, Fraileys formation - Anna, Illinois, USA Altro

Miocene (10-20 milj j) - North Carolina, USA Altro

Perm ( 285 million years) - Pfalz - Niedernhausen, Germany Altro

45-55 mya - Königsberg, Jantarny - Baltic Region Altro

Cambrian (490 mil y) - Morocco Altro

350 mya, Lower Devonian - Alnif, Morocco Altro

Pleistocene - Majunga, Madagascar Altro

Albian - Cenomanian (approx. 110 - 90 mya) - Kem Kem basin, Taouz, Morocco Altro

Pliocene - Torrita di Siena, Tuscany, Italy Altro

Madagascar Altro

Miocene (10-20 milj j) - North Carolina, USA Altro

Late 20th century, United Kingdom Altro

Eocene - Green River formation, Kemmerer, Wyoming Altro

105 mya - Hukuang Valley, Kachin State, North Myanmar Altro

Devonian (345-395 mio) - Ofaten, Morocco Altro

Jurassic, Toarcian - Belmont quarry, France Altro

Eocene, Thanetian, Lutetian, Bartonian, Cuisian and Sparnacian - Parisian Basin, France. Altro

Late Cretaceous (93-100 mil y) - Ganzhou, Jiangxi, China Altro

Jurassic, Toarcian - Belmont quarry, France Altro

Ordovician (445 mil y) - Ille-et-Villaine, France Altro

Pliocene (2.5 - 5 Million years) – Central Java, Indonesia Altro