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UTAHNAX

Utahnax

Extinct genus of gilled lobopodian

Utahnax is a genus of kerygmachelid lobopodian from the Drumian of Utah, containing one species, Utahnax vannieri, either from the Marjum or Wheeler formation

Utahnax

Opabinia

Extinct stem-arthropod species found in Cambrian fossil deposits

?Parvibellus Omnidens Pambdelurion Youti Kerygmachelidae Kerygmachela Utahnax Mobulavermis Opabiniidae Opabinia Utaurora Mieridduryn Radiodonta see Radiodonta

Opabinia

Kerygmachelidae

Family of Gilled lobopodians from the Cambrian

included in the family: Kerygmachela from the lower Cambrian of Greenland, Utahnax from the middle Cambrian of Utah, and Mobulavermis from the lower-middle

Kerygmachelidae

Omnidens

Extinct genus of Cambrian animals

†Siberiidae †Siberion †Megadictyon †Jianshanopodia †Kerygmachelidae †Utahnax †Kerygmachela † Mobulavermis †Omnidens †Pambdelurion †Opabiniidae †Caryosyntrips

Omnidens

Dinocaridida

Extinct class of basal arthropods

?Parvibellus Omnidens Pambdelurion Youti Kerygmachelidae Kerygmachela Utahnax Mobulavermis Opabiniidae Opabinia Utaurora Mieridduryn Radiodonta see Radiodonta

Dinocaridida

Opabiniidae

Extinct family of basal arthropods

†Siberiidae †Siberion †Megadictyon †Jianshanopodia †Kerygmachelidae †Utahnax †Kerygmachela † Mobulavermis †Omnidens †Pambdelurion †Opabiniidae †Caryosyntrips

Opabiniidae

Mobulavermis

Genus of kerygmachelid lobopodian from the Middle Cambrian

McCall, (2023) recovered Mobulavermis amongst the "gilled lobopodians" (Utahnax, and Kerygmachela). The paper also finds that "gilled lobopodians" form

Mobulavermis

Pambdelurion

Extinct genus of Arthropod

†Siberiidae †Siberion †Megadictyon †Jianshanopodia †Kerygmachelidae †Utahnax †Kerygmachela † Mobulavermis †Omnidens †Pambdelurion †Opabiniidae †Caryosyntrips

Pambdelurion

Kerygmachela

Extinct gilled lobopod

†Siberiidae †Siberion †Megadictyon †Jianshanopodia †Kerygmachelidae †Utahnax †Kerygmachela † Mobulavermis †Omnidens †Pambdelurion †Opabiniidae †Caryosyntrips

Kerygmachela

Utaurora

Extinct genus of opabiniid

?Parvibellus Omnidens Pambdelurion Youti Kerygmachelidae Kerygmachela Utahnax Mobulavermis Opabiniidae Opabinia Utaurora Mieridduryn Radiodonta see Radiodonta

Utaurora

Mieridduryn

Extinct genus of arthropod

?Parvibellus Omnidens Pambdelurion Youti Kerygmachelidae Kerygmachela Utahnax Mobulavermis Opabiniidae Opabinia Utaurora Mieridduryn Radiodonta see Radiodonta

Mieridduryn

Megadictyon

Extinct genus of Cambrian lobopodian

†Siberiidae †Siberion †Megadictyon †Jianshanopodia †Kerygmachelidae †Utahnax †Kerygmachela † Mobulavermis †Omnidens †Pambdelurion †Opabiniidae †Caryosyntrips

Megadictyon

Jianshanopodia

Extinct genus of Cambrian lobopodian

†Siberiidae †Siberion †Megadictyon †Jianshanopodia †Kerygmachelidae †Utahnax †Kerygmachela † Mobulavermis †Omnidens †Pambdelurion †Opabiniidae †Caryosyntrips

Jianshanopodia

Lobopodia

Group of extinct worm-like animals with legs

Gilled lobopodians cover at least four genera: Pambdelurion, Kerygmachela, Utahnax and Mobulavermis. Opabinia may also fall under this category in a broader

Lobopodia

Wheeler Shale

Geologic formation in Utah notable for trilobite fossils

- radiodont Pahvantia hastata - radiodont Stanleycaris sp. - radiodont Utahnax vannieri - kerygmachelid lobopodian, possibly from Marjum Formation Utaurora

Wheeler Shale

Wheeler_Shale

List of Cambrian arthropods

Mobulavermis 2023 Pioche Shale Echidnacaris 2023 Emu Bay Shale Kinzers Formation Utahnax 2022 Wheeler Shale? Buccaspinea 2021 Marjum Formation Guanshancaris 2023

List of Cambrian arthropods

List_of_Cambrian_arthropods

2022 in arthropod paleontology

( Ontario) A marrellomorph arthropod. The type species is T. dimitrii. Utahnax Gen. et sp. nov Valid Lerosey-Aubril & Ortega-Hernández Cambrian (Drumian)

2022 in arthropod paleontology

2022_in_arthropod_paleontology