Sakamena Group

Geology

Formations: Lower Sakamena (13), Middle Sakamena (19)

Lithologies: not reported (3), "siliciclastic" (12), claystone (1), mudstone (4), "shale" (5), sandstone (3), "limestone" (2)

Paleoenvironments: marine indet. (6), terrestrial indet. (1), lagoonal/restricted shallow subtidal (1), coastal indet. (6), paralic indet. (5), deltaic indet. (9)

Age range: base of the Wuchiapingian to the top of the Dienerian or 259.85700 to 250.80000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Capitanian - Wuchiapingian264.28 - 254.14Madagascar (30280 30281 30282 30284)
Wuchiapingian259.857 - 254.14Madagascar (Diana) (81973 81987 119511)
Lopingian259.857 - 251.902Madagascar (Ihorombe) (171355)
Lopingian259.857 - 251.902Madagascar (Fianarantsoa) (85505 85512 92491)
Lopingian259.857 - 251.902Madagascar (Tulear) (85494 85506)
Induan - Smithian251.902 - 248.6Madagascar (Diana) (92079 92493 144038 144080 144081 144083 144087 144089 144090 144094 144100)
Dienerian251.1 - 250.8Madagascar (Diana) (117105 117215 153773 154037 154040)
Dienerian251.1 - 250.8Madagascar (153379)
Dienerian251.1 - 250.8Madagascar (Atsimo-Andrefana) (120933 154183)