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Arceodomus japonicum

Rostroconchia - Conocardiida - Arceodomidae

Taxonomy
Conocardium (Conocardium) japonicum was named by Nishida (1968). Its type specimen is ASM 5501, a shell, and it is a 3D body fossil. Its type locality is Entrance of Shuchikujo, Isa-machi, Miné City, which is in a Kashirian/Podolskian carbonate limestone in the Akiyoshi Formation of Japan.

It was recombined as Arceodomus japonicum by Yancey (1978) and Wagner (2023).

Synonymy list
YearName and author
1968Conocardium (Conocardium) japonicum Nishida pp. 208 - 209 figs. Plate 23, Figs 1, 2
1978Arceodomus japonicum Yancey p. 311
2023Arceodomus japonicum Wagner p. 3602

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classRostroconchia
orderConocardiida()
superfamilyConocardioideaMiller 1889
familyArceodomidae
genusArceodomus
speciesjaponicum()

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.

†Arceodomus japonicum Nishida 1968
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Diagnosis
ReferenceDiagnosis
N. Nishida 1968Shell moderate for the subgenus; umbo placed at about onefourth of hinge-line from front; posterior wing well-defined, trigonal and ornamented with 11. rather coarse radial ribs; anterior rostrum rather small. The proportion of the height to the length approximately 0.5 and that of the thickness to the height approximately 0.9.