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Palaeoconcha subsymmetrica

Bivalvia - Nuculida - Praenuculidae

Taxonomy
Ctenodonta subsymmetrica was named by Kobayashi (1934). Its type specimen is UMUT PM0543 and is not a trace fossil. Its type locality is Hyesan (=Keizan-son), which is in a Llandeilo carbonate limestone in the Tsuibon Formation of North Korea.

It was recombined as Palaeoconcha subsymmetrica by Hayami and Kase (1977).

Synonymy list
YearName and author
1934Ctenodonta subsymmetrica Kobayashi p. 348 figs. pl. 4, figs. 7, 8
1977Palaeoconcha subsymmetrica Hayami and Kase

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
RankNameAuthor
—Eubivalvia
subclassProtobranchia(Pelseneer 1889)
superorderNuculiformiiDall 1889
orderNuculida(Dall 1889)
superfamilyNuculoidea(Gray 1824)
familyPraenuculidaeMcAlester 1968
genusPalaeoconchaMiller 1889
speciessubsymmetrica()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Palaeoconcha subsymmetrica Kobayashi 1934
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Diagnosis
No diagnoses are available