Species Accounts | Fish Primer | Relationships | Morphology
Overview | Invertebrates | Plants | Enigmas
Introduction | Geology | Climate | Deposition | Summary
Suggested Readings | Bibliography | Web Links
Credits | Richard Lund | Eileen Grogan | Fossils Policy | Terms of Use

Species Accounts

Approximately 130 different species of fish have been excavated from the Bear Gulch Limestone during these past years. They include the earliest known lamprey, at least one acanthodian, an exceptionally diverse assortment of cartilaginous fishes (Chondrichthyes), numerous early ray-fin fishes (Actinopterygii) and a number of lobe-fins (Sarcopterygii). For more information about these groups check out the Fish Primer.

The digging continues, as does the discovery of new species. Less than half of the Bear Gulch species have been formally published. As new species appear in print, we will add them to this web site, as well as the important new information they may reveal.

Agnatha (jawless fishes)

Petromyzontiformes (lampreys)

Hardistiella montanensis

Acanthodii (spiny-fins)

Acanthodiformes

Acanthodes lundi

Chondrichthyes (sharks and their kin)

Chondrichthyans of uncertain affinities

Iniopterygii

unpublished species

Euchondrocephali

Gregoriidae

Bealbonn rogaire

Gregorius rexi

Srianta dawsoni

Srianta iarlis

Srianta srianta

Debeeriidae

Debeerius ellefseni

Heteropetalus elegantulus

Orodontiformes

Orodus daedeleus

Orodus sp.

Petalodontiformes

Belantsea montana

Ctenopetalus serratus

Fissodus sp.

Janassa clarki

Netsepoye hawesi

Petalorhynchus beargulchensis

Polyrhizodus digitatus

Siksika ottae

Other Euchondrocephali

Venustodus argutus

Holocephalimorpha

Holocephalimorpha of uncertain affinity

Harpacanthus fimbriatus

Holocephali

Holocephali of uncertain affinity

Lisgodus/Chomatodus spp.

Delphyodontos dacriformes

Chondrenchelyiformes

Harpagofututor volsellorhinus

Cochliodontimorpha

Echinochimaeridae

Echinochimaera meltoni

Echinochimaera snyderi

Menaspidae

Traquairiidae

Traquairius agkistrocephalus

Traquairius nudus

Traquairius spinosus

Cochliodontiformes

Cochliodus contortus

Cochliodonts of uncertain affinity

unpublished cochliodonts

Elasmobranchii

Cladodontida

Stethacanthidae

Damocles serratus

Falcatus falcatus

Orestiacanthus fergusi

Stethacanthus altonensis

Stethacanthus productus

Squatinactidae

Squatinactis montanus

Elasmobranchii of uncertain affinity

Listracanthus sp.

Thrinacodus sp.

unpublished Tristychoid

Osteichthyes (bony fish)

Actinopterygii (ray-fin fishes)

Tarrasiiformes

Paratarrasius hibbardi

Cladistia

Discoserra pectinodon

Guildayichthys carnegiei

Platysomiformes

Platysomus sp.

Paleonisciformes

Aesopichthys erinaceus

Cyranorhis bergeraci

Kalops diophrys

Kalops monophrys

Proceramala montanensis

Wendyichthys dicksoni

Paleoniscoids of uncertain affinity

unpublished species

Sarcopterygii (lobe-fin fishes)

Coelacanthiformes (coelacanths)

Allenypterus montanus

Caridosuctor populosum

Hadronector donbairdi

Lochmocercus aciculodontus

Polyosteorhynchus beargulchensis

unpublished species

Rhizodontiformes (rhizodonts)

Strepsodus sp.

Top of page