B Member

Geology

Formation: Halla

Lithologies: not reported (1), marl (3), lime mudstone (1), wackestone (1), bafflestone (1), "limestone" (2)

Paleoenvironments: marine indet. (1), carbonate indet. (2), reef, buildup or bioherm (1), deep subtidal ramp (3)

Age range: Gleedonian or 429.60000 to 426.70000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Silurian443.1 - 419.62Sweden (Gotland) (210183)
Homerian430.6 - 426.7Sweden (Gotland) (13851 163532 163540)
Homerian430.6 - 426.7Sweden (77538 161075)
Gleedonian429.6 - 426.7Sweden (Gotland) (228990)