| details |
Thanetian |
Ypresian |
England(Essex) |
Harland,R. The Wetzeliella (Apectodinium) homomorphum plexus from the Palaeogene/earliest Eocene of north-west Europe. |
1979 |
| details |
Thanetian |
Ypresian |
England |
Powell,A.J. Dinoflagellate cysts of the Tertiary system. (In: A Stratigraphic Index of Dinoflagellate Cysts. A.J.Powell, editor) |
1992 |
| details |
Thanetian |
Ypresian |
Nd |
Cavelier,C. et al. Correlation stratigraphy of the Paleogene stratotypes, stages standards, biozones, chemical zones and magnetic anomilies |
1983 |