Definition of Llanvirnian. Meaning of Llanvirnian. Synonyms of Llanvirnian

- The Darriwilian is the upper stage of the Middle Ordovician. It is preceded by the Dapingian and succeeded by the Upper Ordovician Sandbian Stage. The...
- Germany (in erratic blocks), Lithuania and Belarus during the Upper Llanvirnian Stage (463.5-460.9 Ma) of the Middle Ordovician. These trilobites can...
- Vestnik Ustredniho ustavu geologickeho, 1972 Upper Arenigian to Lower Llanvirnian Acritarchs from the Subsurface of the Tadla Basin in Morocco. Fritz H...
- has a complete succession of Ordovician deposits. Black shales from Llanvirnian times are found in the Central Coal Basin eastern side. But mostly in...
- of 9.8 and 3.7 m.y. and in older chronologies by the 7.8 million year Llanvirnian. Flower, R. H. 1964. The Nautiloid Order Ellesmeroceratida (Cephalooda)...
- Darriwilian)], upper part of the Valongo Formation in Northern Portugal; the Llanvirnian at Guadarranque in Cadiz (Andalusia), Spain and; the 'Llandeilo' south...
- volcaniclastic sediments laid down in the marine Welsh Basin during the Llanvirnian stage of the Ordovician Period. The group includes (in descending order...
- (Felin-wen Formation) laid down in the marine Welsh Basin during the Llanvirnian and Caradocian epochs of the Ordovician period. http://www.bgs.ac.uk/Lexicon/lexicon...
- Either is followed by the Middle Ordovician ICS Dapingian or by the Llanvirnian of older chronologies. The Arenig and equivalent Floian are represented...
- of Ordovician age. Mudstones, siltstones and sandstones of Arenigian, Llanvirnian and Ashgillian age occur in a broad band from the northeast through the...