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Allathecidae

Orthothecida - Allathecidae

Taxonomy
Allathecidae was named by Rozanov et al. (1969) [Missarzhevsky in Rozanov et al. 1969]. Its type is Allatheca.

It was assigned to Orthothecida by Rozanov et al. (1969) and Parkhaev and Demidenko (2010).

Synonymy list
YearName and author
1969Allathecidae Rozanov et al. p. 137
2010Allathecidae Parkhaev and Demidenko p. 937

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
RankNameAuthor
Lophophorata
phylumHyolitha
orderOrthothecida
familyAllathecidae
familyAllathecidae

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"Shell of elongated shape, with oval to rounded-triangular cross-section. Dorsal side strongly convex, ventral side flattened or slightly convex. Ornamentation represented by transverse ribs, equally prominent along whole perimeter of shell."