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Quadrosiphogonuchites

- Siphogonuchitidae

Taxonomy
Quadrosiphogonuchites was named by Chen (1982) [Sepkoski's age data: V N-Da Cm Tomm-u Sepkoski's reference number: 1006]. It is not extant.

It was assigned to Scyphozoa by Sepkoski (2002); and to Siphogonuchitidae by Parkhaev and Demidenko (2010).

Synonyms
Synonymy list
YearName and author
1982Quadrosiphogonuchites Chen p. 254
1982Paranabarites Jiang p. 172
1984Paraconularoides He p. 28
2002Quadrosiphogonuchites Sepkoski, Jr.
2010Quadrosiphogonuchites Parkhaev and Demidenko p. 971

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
RankNameAuthor
phylumMollusca
Sachitida(He 1980)
superfamilySiphogonuchitoidea(Qian 1977)
familySiphogonuchitidae
genusQuadrosiphogonuchitesChen 1982

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.

Diagnosis
ReferenceDiagnosis
P. Y. Parkhaev and Y. Demidenko 2010"Sclerites straight or curved, narrow, pyramidal, conical or prismatic, with subquadrate cross-section, with four prominent facets. External ornamentation absent or represented by longitudinal straight or curved ribs."