Nielsen, J. K. (2002). Borings formed by Late Cretaceous endobiontic foraminifers within larger benthic foraminifers. Acta Palaeontologica Polonica. 47(4): 673-678.
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Nielsen, J. K.
2002
Borings formed by Late Cretaceous endobiontic foraminifers within larger benthic foraminifers