Gerastos arcus Van Viersen and Prescher 2010 (trilobite)

Artiopoda - Proetida - Proetidae

Full reference: A. P. Van Viersen and H. Prescher. 2010. Taxonomy and biostratigraphy of some proetid trilobites in the Middle Devonian of the Ardennes and Eifel (Rhenohercynian Zone). Bulletin de l’Institut royal des Sciences naturelles de Belgique, Sciences de la Terre 80:5-45

Belongs to Gerastos according to A. P. Van Viersen and H. Prescher 2010

Sister taxa: Gerastos (Erbenites), Gerastos (Gerastos), Gerastos (Oehlertaspis), Gerastos ainrasifus, Gerastos aintawilus, Gerastos batrachus, Gerastos confragosus, Gerastos cornix, Gerastos couvinensis, Gerastos cuvieri, Gerastos dhondti, Gerastos discombobulatus, Gerastos eifliensis, Gerastos emmetus, Gerastos fosterae, Gerastos fragosus, Gerastos galei, Gerastos granulatus, Gerastos granulosus, Gerastos hammii, Gerastos izius, Gerastos kermur, Gerastos kippingi, Gerastos lessensis, Gerastos lisanrasus, Gerastos lisyi, Gerastos luedenscheidensis, Gerastos malisjildus, Gerastos meiopsifius, Gerastos mellishae, Gerastos monksi, Gerastos prox, Gerastos raribus, Gerastos retroflexus, Gerastos rommersheimensis, Gerastos simus, Gerastos snellingsi, Gerastos suborbitatus, Gerastos taqus, Gerastos tuberculatus, Gerastos verrucosus

Type specimen: IRSNB a12781, a cephalothorax. Its type locality is Pl. Couvin 11a, Petigny, which is in an Eifelian marine mixed carbonate-siliciclastic in the Jemelle Formation of Belgium.

Ecology: fast-moving low-level epifaunal deposit feeder

Distribution: found only at Pl. Couvin 11a, Petigny

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