Geragnostus crassus Tjernvik 1956 (artiopod)

Artiopoda - Agnostida - Metagnostidae

Full reference: T. E. Tjernvik. 1956. On the Early Ordovician of Sweden stratigraphy and fauna. Bulletin of the Geological Institutions of the University of Uppsala 36(6):109-284

Belongs to Geragnostus according to T. E. Tjernvik 1956

Sister taxa: Geragnostus (Geragnostella), Geragnostus (Geragnostus), Geragnostus (Microagnostus), Geragnostus (Novoagnostus), Geragnostus boutouryensis, Geragnostus callaveiformis, Geragnostus fabius, Geragnostus occitanus

Type specimen: PU no. Vg 279, a pygidium. Its type locality is Hunneberg Group Limestone Biota, Vastergotland, which is in a Tremadocian/Floian deep subtidal shelf limestone in Sweden.

Ecology: slow-moving epifaunal detritivore

Distribution:

• Ordovician of Norway (1 collection), Sweden (2)

• Tremadoc of China (1), Sweden (1)

Total: 5 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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