| details |
Ordovician |
|
Poland |
GŠ³rka,H. "Melanosclerites" extracted from Ordovician erratic boulders in Poland. |
1971 |
| details |
Ordovician |
|
Baltic |
Eisenack,A. The microfossils of Osteekalke (Ordovician) 3. Graptolite, Melanoskelton, Sponge, Radiolarian, problematic and Supplements on Foraminifera and phytoplankton |
1971 |
| details |
Ordovician |
|
W.Germany(Niedersachsen) |
Schallreuter,R. Microfossils of Gesehieben. Part 1: Melanoskeleton. |
1981 |
| details |
Nd |
|
Nd |
Cashman,P.B. Miscellaneous. 13C -Melanosclerites. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |