New Silurian-Devonian pseudophorid gastropods

• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Northrop; North Atlantic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.32; http://www.geology.cz/app/bulletin/fulltext/359_blodgett.pdf

Abstract. Pseudophorid gastropods typically occur as warm-water (tropical to subtropical) elements in Late Ordovician-Permian strata. Silurian occur-rences are known from the North Silurian Realm (North Atlantic Region) and Devonian occurrences are known only from the Old World Realm and East-ern Americas Realm. No occurrences are known from the cool- to cold-water Malvinokaffric Realm during the Silurian or Devonian. New Silurian-Devo-nian taxa of this biogeographically distinctive gastropod family include three new genera: Gaspephorus, based on the Late Silurian (Ludlow-Přídolí) Euomphalopterus gasconensis Northrop from Gaspé and northern Maine; Peelophorus, based on Trochus astraliiformis Lindström from the Silurian (Wenlock) of Gotland; and Bergmadsenella, based on Pleurotomaria marklini Lindström, also from the Late Silurian (Wenlock) of Gotland. In addition