Author:

Landing,E.;Ludvigsen,R.

Year:

1984

Title:

Classification and conodont-based age of the Ordovician Trilobite Ellsaspis, (Middle Arengian, Ville Guay,Quebec).

Reference:

Landing,E. et al. (1984) Classification and conodont-based age of the Ordovician Trilobite Ellsaspis, (Middle Arengian, Ville Guay,Quebec). Canadian Journal of Earth Sciences Vol. 21 P. 1483- 1490

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