Terreneuvian

The Terreneuvium is the lower stratigraphic series of the Cambrian in the Earth's history. The series is dated approximately in the period from about 541 to about 521 million years. The Terreneuvium is overlaid by a yet unnamed level ( "Level 3") and series ( " Series 2 " ) of the Cambrian. The Terreneuvium follows the Ediacaran system (or period) of the Neoproterozoic era ( Precambrian).

Naming and history

The series was named after the French name of Newfoundland ( " Terre- Neuve ").

Definition and GSSP

The beginning of the Terreneuviums, the Fortuniums, the Cambrian, and thus the Paleozoic and the Phanerozoic was the first appearance of the trace fossil Treptichnus ( Phycodes ) pedum defined. In addition, the limit is also very close to a negative carbon isotope anomaly. The limit has not yet been finalized, but is likely the first appearance of trilobites are. As GSSP Terreneuvium the series ( and the Fortunium stage) a profile at Fortune Head on the Burin Peninsula in the east of the Canadian island of Newfoundland was determined.

Subdivision

The Terreneuvium is divided into two stratigraphic levels; the upper step has not been formally identified.

• System: Cambrian ( 541 to 485.4 mya ) Series: Furongium ( 497 to 485.4 mya )
• Series: Cambrian Series 3 ( 509-497 mya )
• Series: Cambrian Series 2 ( 521-509 mya )
• Series: Terreneuvium ( 541-521 mya ) Level: 2 Level Cambrian ( 529-521 mya )
• Level: Fortunium ( 541-529 mya )

The Terreneuvium series roughly corresponds to the earlier Cambrian.