Ptychoparella Poulson 1927 (trilobite)

Trilobita - Ptychopariida - Ptychopariidae

Synonyms: Elrathina Resser 1937, Syspacephalus Resser 1936

Parent taxon: Ptychopariidae according to P. A. Jell and J. M. Adrain 2002

See also Caron and Jackson 2008, Palmer and Halley 1979, Resser 1936, Sepkoski 2002 and Sundberg 1994

Sister taxa: Achlysopsis, Altikolia, Altitudella, Amecephalites, Asthenopsis, Austinvillia, Balangcunaspis, Bathyholcus, Bathyocos, Billingsaspis, Binodaspis, Bolaspidina, Braintreella, Brunswickia, Caborcella, Cathayanella, Champlainia, Chengshanaspis, Conopolus, Deltina, Douposiella, Entsyna, Eokaotaia, Eoptychoparia, Eospencia, Eurostina, Gaotanaspis, Gaphuraspis, Gedongaspis, Gunnia, Holasaphus, Illtydaspis, Jangudaspis, Jiagouia, Jialaopsis, Jianchangia, Jiumenia, Kaotaia, Kochiella, Kochiellina, Kounamkites, Kunmingaspis, Laminurus, Laoyingshania, Luxella, Lyriaspis, Meitania, Meniscopsia, Monanocephalus, Mufushania, Nangaoia, Nangaops, Nassovia, Neoblairella, Neoregina, Olenekina, Onchocephalites, Orienturus, Orlovia, Orloviella, Pachyaspis, Paleonelsonia, Palmerara, Palmeraspis, Panacus, Paraeosoptychoparia, Parahiolites, Paraperiomma, Paraplagiura, Parapoulsenia, Paraziboaspis, Periommella, Piaziella, Pingluaspis, Piochella, Plagiura, Plesiamecephalus, Poulsenella, Poulsenia, Probowmania, Probowmaniella, Probowmanops, Proliostracus, Protohedinia, Psilostracus, Ptychopariinae, Qiaotouaspis, Regius, Salankanaspis, Sanwania, Semisphaerocephalus, Shantungaspis, Shuiyuella, Sinoptychoparia, Spencella, Spencia, Stoecklinia, Suluktella, Syspacephalus redpathi, Syspacephalus unca, Townleyella, Trigonyangaspis, Tukalandaspis, Ulrichaspis, Variopelta, Vermontella, Volocephalina, Wanhuaia, Weijiaspis, Wuhaina, Xingrenaspis, Yaojiayuella, Yohoaspis, Ziboaspidella, Ziboaspis

Subtaxa: Elrathina antiqua Elrathina cordillerae Elrathina marginalis Elrathina offula Elrathina wheelera Ptychoparella minuta Ptychoparella usualis Syspacephalus cadyi Syspacephalus charops Syspacephalus crassus Syspacephalus gregarius Syspacephalus laticeps Syspacephalus longus Syspacephalus mccollumorum Syspacephalus vapidus Syspacephalus variosus Syspacephalus werneckensis

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Ecology: fast-moving epifaunal detritivore

Distribution:

• Marjumian of United States (2: Georgia, Utah collections)

• Cambrian of Canada (39: Alberta-British Columbia, Brithish Columbia, British Columbia, Newfoundland and Labrador, Northwest Territories, Yukon Territory), China (2), Greenland (4), Mexico (1), United States (72: California, California-Nevada, Idaho, Montana, Nevada, Nevada and California, Pennsylvania, Utah, Vermont)

Total: 120 collections including 129 occurrences

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Specimen images are retrieved through the ePANDDA API.


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