Definition of Whiterockian. Meaning of Whiterockian. Synonyms of Whiterockian

- The Whiterockian, often referred to simply as the Whiterock, is an earliest or lowermost stage of the Middle Ordovician. Although the Whiterockian or Whiterock...
- Mohawkian Chatfieldian Sandbian Burrellian Gisbornian Turinian Aurelucian Whiterockian Middle Ordovician Darriwilian Llanvirn Llandeilo Darriwilian Darriwilian...
- Spain, Sweden, the United Kingdom, United States; Llandeilo of China; Whiterockian of United States; Dawan of China; Arenig of China. Strophomena amoena...
- Najaceras is a genus of straight, slender endocerid known only from the Whiterockian age Oil Cr**** Limestone of Oklahoma, introduced and named by Rousseau...
- Volkhov stage. Another conodont, Tripodus laevis, defined the base of the Whiterockian stage in western North America. T. laevis was also roughly correlated...
- Wutinoceras Temporal range: early Middle Ordovician (Whiterockian) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Mollusca class:...
- Crystal Peak Dolomite Stratigraphic range: Middle Ordovician (Whiterockian) ~471–458 Ma PreꞒ Ꞓ O S D C P T J K Pg N Type Formation Underlies Eureka Quartzite...
- phragmocones, and siphuncles. Williamsoceras and Cacheoceras are from the Whiterockian stage (lower lower Middle Ordovian) of Utah. Perkinsoceras, which appeared...
- Conodonts Paraprioniodus costatus and Leptochirognathus quadratus indicate Whiterockian age. Unconformities separate this formation from the underlying Powell...
- that is near the ventral margin. Adamsoceras is known from rocks of Whiterockian age (early Middle Ordovician) in Nevada, the Baltic, Tasmania, and Manchuria...