A peculiar fusuline assemblage from the Tanes locality, Campo de Caso section (Pennsylvanian, Upper Moscovian; Cantabrian Zone, Spain)

• Villa, Elisa ^[1] ; Ueno, Katsumi ^[2] ; Merino-Tomé, Oscar ^[3] ; Martín-Llaneza, Jaime ^[3]
  1. [1] Universitat de València

     Universitat de València

     Valencia, España

     
  2. [2] Fukuoka University

     Fukuoka University

     Hakata Ku, Japón

     
  3. [3] Universidad de Oviedo

     Universidad de Oviedo

     Oviedo, España

     

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• Localización: Spanish journal of palaeontology, ISSN 2255-0550, Vol. 36, Nº. 1, 2021 (Ejemplar dedicado a: SPANISH JOURNAL OF PALAEONTOLOGY), págs. 91-110
• Idioma: inglés
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• Resumen

  • The Campo de Caso section (eastern part of the Cantabrian Zone, NW Spain) exposes a middle to upper Moscovian (Middle Pennsylvanian) succession, up to 3500-m thick, consisting of marine shelfal and deltaic siliciclastic and shale deposits with numerous intercalated fossiliferous limestones. A limestone outcropping in the upper part of this section, close to the village of Tanes, has yielded a fusuline assemblage composed of species of the genera Eostaffella, Pseudonovella, Ozawainella, Pseudostaffella, Neostaffella, Schubertella, Fusiella, Taitzehoella, Fusulinella, Beedeinaand Putrella. The specific composition of these genera, considered as a whole, indicates an early to mid- Myachkovian age; however, some of the taxa exhibit rare aspects, among which are the occurrence of pseudostaffellids having a “primitive” appearance recalling that of the Bashkirian Pseudostaffella, and a Putrella species exhibiting a wall that, at first glance, resembles the schwagerinid wall. Data gathered during this study question the validity of the genus Quasistaffella Solovieva 1986 and point to consider it as a junior synonymous of Pseudostaffella Thompson 1942.