Stratigraphy
721 results
Stratigraphy | Index | Index add'l | Type | Rank | Scope | Belongs to | Age (Ma) | Age | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Base | Top | ||||||||||
| Precambrian | PC | chronostratigraphy | global | Global Chronostratigraphy | 4567.0 | 538.8 | |||||
| Archean | AR | chronostratigraphy | Eonothem | global | Precambrian | 4000.0 | 2500.0 | ||||
| Proterozoic | PR | chronostratigraphy | Eonothem | global | Precambrian | 2500.0 | 538.8 | ||||
| Vendian | chronostratigraphy | System | regional | Ediacaran | |||||||
| Phanerozoic | PH | chronostratigraphy | Eonothem | global | Global Chronostratigraphy | 538.8 | |||||
| Paleozoic | PZ | chronostratigraphy | Erathem | global | Phanerozoic | 538.8 | 251.9 | ||||
| Cambrian | Є | Ca, Cm | chronostratigraphy | System | global | Paleozoic | 538.8 | 485.4 | |||
| Lower Cambrian (old nomenclature) | Є1 | Ca1 | chronostratigraphy | Series | global | Cambrian | 542.0 | 521.0 | Cambrian | ||
| Middle Cambrian (old nomenclature) | Є2 | Ca2 | chronostratigraphy | Series | global | Cambrian | 521.0 | 510.0 | Cambrian | ||
| Upper Cambrian (old nomenclature) | chronostratigraphy | Series | global | Cambrian | 499.0 | 488.3 | Cambrian | ||||
| Ordovician | O | O | chronostratigraphy | System | global | Paleozoic | 485.4 | 443.8 | Paleozoic | ||
| Öland Series | chronostratigraphy | Series | regional | Baltic Ordovician | 489.8 | 463.8 | Ordovician | ||||
| Pakerort Stage | AII | O1PK | chronostratigraphy | Stage | regional | Iru Subseries | 489.8 | 486.2 | Tremadocian | ||
| Varangu Stage | AIII | O1VR | chronostratigraphy | Stage | regional | Iru Subseries | 486.2 | 483.4 | Tremadocian | ||
| Latorp Superstage | BI | chronostratigraphy | Superstage | regional | Ontika Subseries | 483.4 | 471.8 | Ordovician | |||
| Volkhov Stage | BII | O2VL | chronostratigraphy | Stage | regional | Ontika Subseries | 471.8 | 467.5 | Middle Ordovician | ||
| Kunda Stage | BIII | O2KN | chronostratigraphy | Stage | regional | Ontika Subseries | 467.5 | 463.8 | Darriwilian | ||
| Viru Series | chronostratigraphy | Series | regional | Baltic Ordovician | 463.8 | 452.0 | Upper Ordovician | ||||
| Aseri Stage | CIa | O2AS | chronostratigraphy | Stage | regional | Purtse Subseries | 463.8 | 463.0 | Darriwilian | ||
| Lasnamägi Stage | CIb | O2LS | chronostratigraphy | Stage | regional | Purtse Subseries | 463.0 | 462.6 | Darriwilian | ||
| Uhaku Stage | CIc | O2UH | chronostratigraphy | Stage | regional | Purtse Subseries | 462.6 | 460.9 | Darriwilian | ||
| Kukruse Stage | CII | O3KK | chronostratigraphy | Stage | regional | Purtse Subseries | 460.9 | 458.2 | Sandbian | ||
| Haljala Stage | CIII/DI | O3HL | chronostratigraphy | Stage | regional | Kurna Subseries | 458.2 | 456.2 | Sandbian | ||
| Idavere Substage | CIII | chronostratigraphy | Substage | regional | Haljala Stage | Sandbian | |||||
| Ojamaa | chronostratigraphy | regional | Idavere Substage | Sandbian | |||||||
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