| details |
Callovian |
|
Germany |
Dimter,A. et al. Callovian, (Middle Jurassic), marine microplankton from Southwestern Germany; biostratigraphy and paleoenvironmental interpretations |
1990 |
| details |
Callovian |
|
England |
Sarjeant,W.A.S. English Jurassic dinoflagellate cysts and acritarchs: a re-examination of some type and figured specimens. |
1976 |
| original |
Bathonian |
Oxfordian |
Canada(Arctic) |
Davies,E.H. Jurassic and Lower Cretaceous dinoflagellate cysts of the Sverdrup Basin, Arctic Canada; Taxonomy, biostratigraphy, chronostratigraphy. |
1979 |
| details |
Bathonian |
Callovian |
Wyoming |
Habib,D. et al. Palynology of sedimentary cycles. (In: Sedimentation of Organic Particles. A.Traverse, editor) |
1994 |