Article · Wikipedia archive · Last revised Jul 7, 2026

Bluefieldius

Bluefieldius is an extinct genus of marine ray-finned fish that lived during the Late Mississippian epoch in what is now West Virginia, United States. It is known from a single fossil collected from the late Serpukhovian or early Viséan Bluefield Formation. The type and only species (monotypy) is Bluefieldius mercerensis.

Last revised
Jul 7, 2026
Read time
≈ 1 min
Length
129 w
Citations
3
Source
Bluefieldius
Temporal range:
Holotype specimen
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Genus: Bluefieldius
Mickle, 2018
Species:
B. mercerensis
Binomial name
Bluefieldius mercerensis
Mickle, 2018

Bluefieldius is an extinct genus of marine ray-finned fish that lived during the Late Mississippian (Early Carboniferous) epoch in what is now West Virginia, United States.1 It is known from a single fossil collected from the late Serpukhovian or early Viséan Bluefield Formation.2 The type and only species (monotypy) is Bluefieldius mercerensis.

It has a "palaeoniscoid" body plan, although as that order is thought to be paraphyletic, it was described as an indeterminate actinopterygian.2

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