†suborder Agnostina Salter 1864 (trilobite)

Trilobita - Agnostida

Parent taxon: Agnostida according to E. Landing et al. 2008

See also Harrington and Leanza 1957 and Palmer and Gatehouse 1972

Sister taxa: Agnostidae, Agnostogonus, Agnostoidea, Aistagnostus, Allobodochus, Ammagnostidae, Armagnostus, Blystagnostus, Ceragnostus, Chatkalagnostus, Chelediscus, Clavagnostidae, Condylopygidae, Cristagnostus, Delagnostus, Dicerodiscus, Dignagnostus, Dolichoagnostus, Egyngolia, Euagnostus, Formagnostus, Glyptagnostidae, Granuloagnostus, Gratagnostus, Jinghediscus, Kiskinella, Kymagnostus, Lavsanodiscus, Lenadiscus, Litometopus, Meniscuchus, Metagnostidae, Micagnostus, Miraculaspis, Monexagnostus, Ninadiscus, Oodiscus, Peronopsidae, Phalacromidae, Pleurinodus, Pseudocobboldia, Ptychagnostidae, Quadrahomagnostinae, Rhodotypiscus, Semadiscus, Sphaeragnostidae, Spinagnostidae, Stigmadiscus, Tasagnostus, Triangulina, Xyoeax, Yukonia

Subtaxa: Glaberagnostus Grandagnostus Hastagnostus Megagnostus Phoidagnostus Quadragnostidae Skryjagnostus Valenagnostus

View classification

Ecology: slow-moving epifaunal detritivore

Distribution:

• Ordovician of Argentina (9 collections)

• Ayusokkanian of Kazakhstan (8)

• Marjumian of Canada (2: Newfoundland and Labrador), Greenland (1)

• Cambrian of Australia (2), Canada (1: Newfoundland and Labrador), China (19), the Czech Republic (3), Greenland (1), India (1), Italy (3), the Russian Federation (6), Spain (1), United States (2: Alaska, Vermont)

Total: 59 collections including 72 occurrences

Show more details