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Taxon:
Genus †
Quadrotheca
Sysoev, 1957
(invertebrate)
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Entity:
†Orthothecida (Order)
..†Bactrotheca (Genus)
..†Circothecidae (Family)
..†Nephrotheca (Genus)
..†Orthotheca (Genus)
..†Tcharatheca (Genus)
..†Quadrotheca (Genus)
Authorship
Original name
:
Sysoev, 1957. In Orlov (Ed.) 1958, Osnovy Paleont. VI. Molluski, Ammonoidei etc.: 187.
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Last updated:
21 Sep 2025