List of Common Index Fossils
| Fossil | Scientific Name | Time Period | Million Years Ago |
|---|---|---|---|
Calico Scallop |
Pecten gibbus Argopecten gibbus |
Quaternary Period | 1.8 million years ago |
| Neptunea tabulata | Quaternary Period | 1.8 million years ago | |
| Viviparus glacialis | Tiglian (Early Pleistocene) | 0.5 million years ago | |
| Calyptraphorus velatus | Tertiary Period | ||
| Venericardia planicosta | Eocene | ||
Scaphites |
Scaphites hippocrepis | Cretaceous Period | 145 to 66 million years ago |
Inoceramus |
Inoceramus labiatus | Cretaceous Period | |
| Perisphinctes | Perisphinctes tiziani | Jurassic Period | |
| Nerinea trinodosa | Jurassic Period | ||
| Tropites subbullatus | Triassic Period | ||
| Monotis subcircularis | Triassic Period | ||
Leptodus |
Leptodus americanus | Permian Period | |
| Parafusulina | Parafusulina bosei | Permian Period | |
| Dictyoclostus americanus | Pennsylvanian Period | ||
| Lophophyllidium proliferum | Pennsylvanian Period | ||
| Cactocrinus multibrachiatus | Mississippian Period | ||
| Prolecanites gurleyi | Mississippian Period | ||
Mucrospirifer |
Mucrospirifer mucronatus | Devonian Period | 416 to 359 million years ago |
| Palmatolepis unicornis | Devonian Period | ||
| Silurian Period | |||
| Tetragraptus fructicosus | Ordovician Period | ||
| Paradoxides | Cambrian Period | 540 million years ago | |
| Billingselia corrugata | Cambrian Period | ||
| Archeocyathids | Lower Cambrian |
Read more about this topic: Index Fossil
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