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Agnostida are an order of extinct arthropods which have classically been seen as a group of highly modified trilobites, though some recent research has...

a common evolutionary trend. Notable examples of this were the orders Agnostida and Asaphida, and the suborder Illaenina of the Corynexochida. Effacement...

Westrop, Broda & Dengler Cambrian Shallow Bay Formation  Canada A member of Agnostida belonging to the family Eodiscidae. Eodiscus confossus Sp. nov Valid Westrop...

two thorax segments outside most members of the Agnostida order. It can be distinguished from Agnostida by the very wide subquadrate glabella (about half...

(possible radiodont) Bradoriida † Deuteropoda Artiopoda † Trilobita † Agnostida (possibly trilobites) † Nektaspida † Aglaspidida Cheloniellida † Bushizheia...

affected conodonts and planktonic forms like graptolites. The trilobites Agnostida and Ptychopariida completely died out, and the Asaphida were much reduced...

planktonic forms like conodonts, graptolites, and some groups of trilobites (Agnostida and Pytchopariida, which completely died out, and the Asaphida which were...

The Eodiscina are mostly considered the more primitive suborder of the Agnostida, and the Agnostina the more advanced. Some scholars do not consider the...

The Spence Shale is the middle member of the Langston Formation in southeastern Idaho and northeastern Utah. It is exposed in the Bear River Range, the...

Lotagnostus is a genus of very small trilobites in the order Agnostida, which lived on the outer continental shelves worldwide, during the late Upper...

Agnostidae is a family of Agnostida trilobites. Like all Agnostina, they were eyeless and bore only two thoracic segments. They ranged in benthic waters...

classified under the superfamily Agnostoidea of the suborder Agnostina, order Agnostida. The family was first established by the Japanese paleontologist Teiichi...

genus of artiopodan arthropod in the family Diplagnostidae of the order Agnostida. It was a widely distributed genus. The base of the Jiangshanian stage...

are now the eastern United States, England, Siberia and China. Like all Agnostida, Weymouthia is diminutive and the headshield (or cephalon) and tailshield...

northwestern Mongolia. E. willochra, South Australia (Lower Botomian) Like other Agnostida the body of Egyngolia is diminutive, the headshield (or cephalon) and...

Obelagnostus is a genus of trilobite in the order Agnostida, which existed in what is now Antarctica. It was described by Shergold and Webers in 1992...

Phalagnostus is a genus of small trilobites, in the order Agnostida. It lived during the Middle Cambrian, in what are now Canada (Newfoundland and Northwest...

related to Acidiscus and slightly more distantly to Stigmadiscus. Like all Agnostida, Bolboparia is diminutive and the headshield (or cephalon) and tailshield...

Bolboparia, Leptochilodiscus, Serrodiscus), and Calodiscus. Like all Agnostida, Oodiscus is diminutive and the headshield (or cephalon) and tailshield...

Yukoniidae has an axis of three to seven rings. S. M. GON III. "Order Agnostida". Retrieved December 3, 2010. MIKKO HAARAMO (March 11, 2008). "†Yukoniidae"...