Bathynotus keuichousensis Trilobite from Kaili

Name: Bathynotus keuichousensis

Class Trilobita; Trilobite Order Redlichiida; Family Chenkouaspidae

Geological Time: Early Middle Cambrian

Size: 25 mm long

Fossil Site: Kaili Formation, Maiobanpo Section, Taijiang County, Kaili, Guizhou Province, China

Bathynotus keuichousensis trilobiteThis trilobite is Bathynotus keuichousensis, the patronymic genus of the trilobite family Bathynotidae, a family whose ordinal status was in dispute. The members of the genus have recently been assigned to the family Chengkouaspidae, a family within the Redlichiida. Trilobites from this timeframe were members of the Redlichiida, Ptychopariida, Corynexochida, and the Agnostida, with the balance of the orders appearing later in time.

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