The Regional Stratigraphic Chart for the Silurian of the Western Part of the Altai-Sayan Folded Area (New Version)

Сенников, Н В; Обут, О Т; Изох, Н Г; Хабибулина, Ралия Ахатовна; Rodina, O; Lykova, E.V.; Kipriianova, T. P.

doi:10.20403/2078-0575-2019-8s-106-134

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“…This genus occurs also in the Lower Ordovician of Morocco (Gigout 1954;Lefebvre & Fatka 2003;Lefebvre et al 2016a). A single specimen of cornute from the upper part of the Chupino Formation (early Floian; Sennikov et al 2018) of Siberia was also tentatively identified as P. salairica (Rozova et al 1985). However, its morphology is poorly known, and its assignment to Phyllocystis still remains to be confirmed.…”

Section: Thecal Plate Homologies In Cornutesmentioning

confidence: 99%

New Middle and Late Ordovician cornute stylophorans (Echinodermata) from Morocco and other peri-Gondwanan areas

Lefèbvre

Nohejlová

Martin

et al. 2022

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Cornute stylophorans are a minor, though typical component of Middle-Late Ordovician echinoderm assemblages adapted to soft siliciclastic substrates, in high latitude peri-Gondwanan regions. All previously reported occurrences of Darriwilian-Katian cornutes from Czech Republic, France, Morocco and Spain are revised and their plate homologies reassessed. The genera Beryllia and Juliaecarpus are reinterpreted as junior synonyms of Domfrontia, and Thoralicystis is synonymised with Bohemiaecystis. Several Mediterranean scotiaecystids previously assigned to Bohemiaecystis and/or Scotiaecystis are placed within Thoralicarpus gen. nov., and cornute taxa originally left in open nomenclature by Chauvel are formally described as Bohemiaecystis chouberti sp. nov. (AVI) and Destombesicarpus izegguirenensis gen. et sp. nov. (AVIII). Other new Mediterranean taxa include Arauricystis clariondi sp. nov., Destombesicarpus budili gen. et sp. nov., Milonicystis reboulorum sp. nov., Thoralicarpus bounemrouensis gen. et sp. nov., and T. prokopi gen. et sp. nov. The six cornute genera identified in Darriwilian-Katian Moroccan echinoderm Lagerstätten are also present in coeval assemblages of at least one other Mediterranean region, thus supporting the existence of strong faunal affinities between the Anti-Atlas, the Armorican Massif, the Barrandian area and the Iberian Peninsula.

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Section: Thecal Plate Homologies In Cornutesmentioning

confidence: 99%