Of the Ladins

Article

August 14, 2022

The Ladinian (~242 – ~237 Ma) is the second geological stage of the Middle Triassic, preceded by the Anisian in the geological time scale and followed by the Carnian.

Stratigraphy

The Ladinian was defined by the Austrian geologist Alexander Bittner in 1892. The name of this floor refers to the Ladins, inhabitants of the Dolomites region in Italy. The base of the stage (Anisian-Ladinian boundary) is defined by the first appearance of the ammonite species Eoprotrachyceras curionii or by the first appearance of the conodont Budurovignathus praehungaricus. The Ladinian Global Stratotype Section and Point (GSSP) is an outcrop located in the bed of the Caffaro river at Bagolino in the province of Brescia in Italy (45° 49′ 09.5″ N, 10° 28 ′ 15.5″ E),. The Ladinian-Carnian boundary is defined by the first appearance of the ammonite Daxatina canadensis.

Paleontology

The vertebrates of this stage include in particular the Spondylosoma and the Dicynodonts.

Dinosauromorphs

Lagerpeton (Argentina) Lagosuchus

†Placodonts

Cyamodus Paraplacodus

†Therapsida

Exaeretodon

Notes and References

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