†family Alsataspididae Turner 1940 (trilobite)

Trilobita - Trinucleida - Alsataspididae

Parent taxon: Trinucleida according to A. Bignon et al. 2020

See also Adrain 2011 and Whittington et al. 1997

Sister taxa: Dionididae, Liostracinidae, Raphiophoridae, Trinucleidae

Subtaxa: Araiopleura Clavatellus Falanaspis Gaoloupingia Hapalopleuridae Jegorovaia Jegorovaiidae Joshuaspis Macharia Orometopidae Orometopus Pagometopus Palquiella Rhadinopleura Seleneceme Skljarella Spirantyx Torifera Yumenaspis Zacompsus

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Ecology: fast-moving low-level epifaunal carnivore

Distribution:

• Whiterockian of Norway (1 collection)

• Arenigian of Argentina (1)

• Arenig of Argentina (2), Bolivia (1), France (1), Sweden (2), the United Kingdom (1)

• Ordovician of Argentina (7), Canada (3: Newfoundland, Northwest Territories, Yukon), Norway (11), the Russian Federation (1), Sweden (5), the United Kingdom (8)

• Tremadoc of Argentina (31), Bolivia (1), the Czech Republic (2), Morocco (1), Norway (1), Sweden (3)

• Skullrockian of Argentina (1)

• Ibexian of Norway (2)

• Taoyuanian of China (5), the Russian Federation (1), South Korea (8)

• Cambrian of Argentina (1), Australia (2), Canada (8: Newfoundland and Labrador, Quebec, Yukon), China (26), India (3), Kazakhstan (15), the Russian Federation (8), South Korea (1), the United Kingdom (2), United States (1: Nevada)

Total: 167 collections including 182 occurrences

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