Waucoban

См. также в других словарях:

• Waucoban Series — ▪ geology       lowermost Cambrian rocks (the Cambrian Period lasted from 542 million to 488 million years ago); the name is derived from exposures found at Waucoba Springs, Calif. The period of time corresponding to the rocks of the Waucoban… …   Universalium

• Waucoban — ► GEOLOGÍA Piso geológico, de la clasificación norteamericana, que corresponde al Georgiense de la europea …   Enciclopedia Universal

• Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …   Wikipedia

• Cambrian — For other uses, see Cambrian (disambiguation). Cambrian Period 542–488.3 million years ago …   Wikipedia

• Stage (stratigraphy) — In chronostratigraphy, a stage is a succession of rock strata laid down in an single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by… …   Wikipedia

• Early Cambrian — The Early Cambrian (also known as the Caerfai, Waucoban, or Georgian) is the first of three geological epochs of the Cambrian period. It spans the time between 542 ± 0.3 Ma and 513 ± 2 Ma (million years ago). The Cambrian explosion of complex… …   Wikipedia

• Olenellus — thompsoni Scientific classification Kingdom: Animalia …   Wikipedia

• Geología histórica — Diagrama de la escala de tiempo geológico. La geología histórica es la rama de la geología que estudia las transformaciones que ha sufrido la Tierra desde su formación, hace unos 4.570 millones de años, hasta el presente. Para establecer un marco …   Wikipedia Español

• Mount Cap formation — The Mount Cap formation is a geological unit exposed in the Mackenzie Mountains, northern Canada. It was deposited in a shallow shelf setting in the late Early Cambrian,[1] and contains an array of Burgess Shale type microfossils that have ben… …   Wikipedia