Environmental interpretation of the atrypid shell beds from the Middle to Upper Devonian boundary of the Holy Cross Mountains and Cracow Upland

G. Racki, and A. Balinski

1981

Article

Acta Geologica Polonica 31:177-211

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Taxa discussed in this work:

• Jahnia
• Kasachstanocrinus

Taxonomy:

• Jahnia belongs to Antipleuridae - Racki and Balinski (1981)