Definition of Tremadocian. Meaning of Tremadocian. Synonyms of Tremadocian

- The Tremadocian is the lowest stage of Ordovician. Together with the later Floian Stage it forms the Lower Ordovician Epoch. The Tremadocian lasted from...
- years ago, until the Dapingian age of the Middle Ordovician. It includes Tremadocian and Floian ages. International Commission on Stratigraphy (ICS) appointed...
- Furongian series. It follows the Jiangshanian and precedes the Ordovician Tremadocian Stage. The proposed lower boundary is the first appearance of the trilobite...
- The Ordovician Period in Britain was traditionally broken into Early (Tremadocian and Arenig), Middle (Llanvirn (subdivided into Abereiddian and Llandeilian)...
- conodonts belonging to the genus Iapetognathus. It existed during the Tremadocian Age (485.4 million years ago) of the Ordovician. It is an important index...
- as dictyonema argillite, dictyonema oil shale, dictyonema shale, or Tremadocian black shale) is a marinite-type black shale of sapropelic origin. It...
- (2018). "High resolution trilobite biostratigraphy for the early late Tremadocian (Tr2) interval (Early Ordovician) Santa Rosita Formation, Argentine Cordillera...
- Angeles. Santa Rosita Formation, a geological formation (upper Furongian–Tremadocian) in the Tilcara Range, Cordillera Oriental of Jujuy, Argentina Santa...
- trilobites of the family Raphiophoridae that lived during the Early Tremadocian of Alberta, Canada. It is known only from a cranidium with a large, keel-shaped...
- Species belonging to the Phacopina lived from the Lower Ordovician (Tremadocian) through the end of the Upper Devonian (Famennian). The one unique feature...