Middle Sakamena Formation

Geology

Group: Sakamena

Members: unnamed (19), Couches à Poissons et Ammonites (1)

Lithologies: not reported (2), "siliciclastic" (13), claystone (1), mudstone (1), "shale" (2), sandstone (1), "limestone" (2)

Paleoenvironments: marine indet. (5), lagoonal/restricted shallow subtidal (1), coastal indet. (3), paralic indet. (1), deltaic indet. (10)

Age range: base of the Induan to the top of the Smithian or 252.17000 to 247.20000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Induan - Smithian252.17 - 247.2Madagascar (Diana) (92079 92493 144038 144080 144081 144083 144086 144087 144089 144090 144094 144100)
Dienerian250.5 - 251.2Madagascar (Atsimo-Andrefana) (120933 154183)
Dienerian250.5 - 251.2Madagascar (Diana) (117105 117215 153773 154037 154040)
Dienerian250.5 - 251.2Madagascar (153379)