Amarixys gracilis Petrunkevitch 1945 (hooded tickspider)

Arachnida - Ricinulei - Curculioididae

Alternative combination: Curculioides gracilis

Full reference: A. I. Petrunkevitch. 1945. Palaeozoic Arachnida of Illinois. An enquiry into their evolutionary trends. Illinois State Museum, Scientific Papers 3(2):1-72

Belongs to Amarixys according to N. Whalen and P. Selden 2020

See also Petrunkevitch 1945, Petrunkevitch 1949, Petrunkevitch 1953 and Selden 1992

Sister taxa: Amarixys stellaris, Amarixys sulcata

Type specimen: ISM 14862, an exoskeleton. Its type locality is Mazon Creek (Illinois State Museum collection), which is in a Westphalian D deltaic mudstone in the Carbondale Formation of Illinois.

Ecology:

Distribution:

• Carboniferous of United States (2: Illinois, Oklahoma collections)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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