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Taxon:
Subgenus †
Polyptycha
Defretin-Lefranc, 1961
(sponge)
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Entity:
†Oncolpia (Genus)
..†Oncolpia (Subgenus)
..†Polyptycha (Subgenus)
Authorship
Original name
:
Defretin-Lefranc, 1961. Contribution à l'étude des Spongiaires siliceux du Crétacé supérieur du Nord de la France. Thèses .... Docteur des Sciences Naturelles, Lille: 98.
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Last updated:
1 Feb 2024