|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Lingulata - Lingulida - Disciniidae
It was reranked as Discina (Orbiculoidea) by Troedsson (1918); it was misspelled as Orbiculoides by Jillson (1919), Hoare (1961), Wright (1963), Mitchell (1977), Owen and Harper (1982), Holmer (1987), Holmer (1989), Williams et al. (2000) and Sepkoski (2002).
It was assigned to Discina by Troedsson (1918); to Brachiopoda by Jillson (1919); to Orbiculoideinae by Wright (1963), Mitchell (1977), Owen and Harper (1982), Holmer (1987) and Holmer (1989); to Disciniidae by Hoare (1961) and Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
|Year||Name and author|
|1918||Discina (Orbiculoidea) Troedsson p. 35|
|1919||Orbiculoides Jillson p. 101|
|1961||Orbiculoidea Hoare p. 22|
|1982||Orbiculoidea Owen and Harper|
|2000||Orbiculoidea Williams et al. p. 90|
|2002||Orbiculoidea Sepkoski, Jr.|
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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.