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Leiostegium (Perischodory)

Trilobita - Corynexochida - Leiostegiidae

Taxonomy
Perischodory was named by Raymond (1937) [Sepkoski's age data: O Trem-u]. It is not extant.

It was reranked as Leiostegium (Perischodory) by Berg and Ross (1959); it was reranked as Lloydia (Perischodory) by Lochman (1965).

It was assigned to Leiostegium by Berg and Ross (1959); to Lloydia by Lochman (1965); and to Corynexochida by Sepkoski (2002).

Synonymy list
YearName and author
1937Perischodory Raymond
1959Leiostegium (Perischodory) Berg and Ross
1965Lloydia (Perischodory) Lochman
2002Perischodory Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderCorynexochidaKobayashi 1935
familyLeiostegiidaeBradley 1925
genusLeiostegiumRaymond 1913
subgenusPerischodory(Raymond 1937)

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
No diagnoses are available