Additions to the Eocene (and Oligocene) fauna of Belgium: 7. Discovery of Gymnura teeth in Ypresian, Paniselian and Rupelian strata
Herman, J.S. (1984). Additions to the Eocene (and Oligocene) fauna of Belgium: 7. Discovery of Gymnura teeth in Ypresian, Paniselian and Rupelian strata. Tertiary Research 6(2): 47-54
In: Tertiary Research. Tertiary Research Group: London. ISSN 0308-9649, meer
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