Journal
BULLETIN OF GEOSCIENCES
Volume 92, Issue 1, Pages 13-30Publisher
CZECH GEOLOGICAL SURVEY
DOI: 10.3140/bull.geosci.1610
Keywords
Trilobita; Phacopidae; taxonomy; palaeobiogeography; Morocco; Algeria; Emsian; Eifelian
Categories
Ask authors/readers for more resources
Well-preserved specimens of the phacopine trilobites Morocops Basse (= Barrandeops McKellar & Chatterton) and Adrisiops gen. nov. are recorded from upper Emsian strata in Morocco. Morocops is a problematic taxon; the close similarities of its stratigraphically youngest members to the earliest members of Geesops Struve are indicative of grade taxonomy. So far, Morocops is exclusively Gondwanan although potential congeners have been described from pen -Gondwana. One of the stratigraphically oldest species of Geesops occurs in the lower Eifelian of the French Ardennes (Laurussia). Its co -occurrence with pioneer Bohemian trilobites there suggests that faunal exchange between Laurussia and peri-Gondwanan terranes was unhindered at that time. New material of Morocops torkozensis (Schraut) is recorded; however, the type locality and horizon of this species remain uncertain. Adrisiops gen. nov. is erected to acconunodate strongly vaulted, Gondwanan taxa that share a unique cephalic morphology inclusive of a short, but rather inflated glabella and ventrally deflected anterior border. New taxa are Morocops spinifer sp. nov. and Adrisiops weugi gen. et sp. nov.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available