Author:

Birkelund,T.;Clausen,C.K.;Hansen,H.N.;Holm,L.

Year:

1982

Title:

The Hectoroceras kochi Zone, (Ryazanian), in the North Sea Central Graben and remarks on the Late Cimmerian Unconformity.

Reference:

Birkelund,T. et al. (1982) The Hectoroceras kochi Zone, (Ryazanian), in the North Sea Central Graben and remarks on the Late Cimmerian Unconformity. Danmarks Geologiske Undersиgelse P. 53- 72

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