author={Cecile M. Poplin and Richard Lund},
  booktitle={Journal of Paleontology},
Abstract One new genus, Kalops, and two new species, K. monophrys and K. diophrys, are described from the Carboniferous (Namurian) marine Bear Gulch limestone of Montana (USA). The most conspicuous features of these elongate fusiform actinopterygians consist of one or two rows of anamestic supraorbital bones, a mosaic of suborbitals, and the presence of two rows of extrascapulars in one species. Discussions of their anatomical, morphometrical, and growth characters result in their placement in… 

A new genus and species of basal actinopterygian fish from the Upper Devonian Gogo Formation of Western Australia

A new basal actinopterygian fish, Gogosardina coatesi gen. nov, is described from the Upper Devonian Gogo Formation of the Canning Basin, Western Australia and possesses a series of four small postrostrals, no surangular and a highly gracile body covered with over 140 vertical rows of very small scales.

Three new palaeoniscoid fishes from the Bear Gulch Limestone (Serpukhovian, Mississippian) of Montana (USA) and the relationships of lower actinopterygians

ABSTRACT Three new palaeoniscoid fishes (Osteichthyes, Actinopterygii), representing two new genera, Lineagruan judithi n. gen., n. sp., L. snowyi n. gen., n. sp., Beagiascus pulcherrimus n. gen., n.

Palaeoniscoid remains from the Lower Permian Pedra de Fogo Formation (Parnaíba Basin): Insights from general morphology and histology

ABSTRACT Fossil fish remains from the Pedra de Fogo Formation in Brazil are abundant and diversified, yet studies of fossils from this lithostratigraphic unit in the Tocantins State remain scarce.

A New Species of the Devonian Actinopterygian Moythomasia from Bergisch Gladbach, Germany, and Fresh Observations on M. durgaringa from the Gogo Formation of Western Australia

The genus Moythomasia is currently problematic owing to the highly fragmentary nature of the type species, M. perforata from Kokenhusen; however, it is considered provisionally valid owing to distinctive cranial ornamentation.

A first record of late Middle Permian actinopterygian fish from Anatolia, Turkey

The Middle–Upper Permian of the Gomaniibrik Formation, of the Tanin Group, in south-east Anatolia, close to the Iraq border, yielded moderately preserved fish remains. Two species, Palaeoniscum

A Revision of the Middle Triassic Scanilepiform Fish Fukangichthys longidorsalis from Xinjiang, China, with Comments on the Phylogeny of the Actinopteri

Results of a phylogenetic analysis confirmed Fukangichthys as a scanilepiform within the Neopterygii, and provided new insights into the evolution of early actinopteran fishes.

The lower actinopterygian fauna from the Lower Carboniferous Albert shale formation of New Brunswick, Canada – a review of previously described taxa and a description of a new genus and species

  • K. Mickle
  • Environmental Science, Geography
  • 2017
A new lower actinopterygian species, †Lambeia pectinatus, is described from one well-preserved specimen, and the morphology of this newly described species is more similar to later Carboniferous fishes rather than Devonian fishes.

Revision of the actinopterygian genus Mimipiscis (=Mimia) from the Upper Devonian Gogo Formation of Western Australia and the interrelationships of the early Actinopterygii

  • Brian Choo
  • Biology, Environmental Science
    Earth and Environmental Science Transactions of the Royal Society of Edinburgh
  • 2012
Phylogenetic analyses recover Mimipiscis and Gogosardina as sister genera within a monophyletic Mimiidae, a clade restricted to the Late Devonian of Western Australia.

Ecomorphology of the Mississippian fishes of the Bear Gulch Limestone (Heath formation, Montana, USA)

These analyses lend new insight into the adaptive radiations of Chondrichthyes and Osteichthyes subsequent to the Upper Devonian mass extinctions.

A new, exceptionally well-preserved Permian actinopterygian fish from the Minnekahta Limestone of South Dakota, USA

The evolutionary history of Palaeozoic and early Mesozoic ray-finned fishes (Actinopterygii) is obscured by an incomplete fossil record and under-study of late Palaeozoic (Permo-Carboniferous)



Preliminary analysis of theinterrelationships of some paleozoic actinopterygii


It is shown that Tarrasiids are monophyletic and are the sister group of the other analysed Actinopteri, which supports the most recent studies in indicating that TARRasiidae are close to stem actinopterygians.

Osorioichthys marginis, "paléonisciforme" du Famennien de Belgique, et la phylogénie des actinoptérygiens dévoniens (Pisces)

Osorioichthys appears to be more apomorphic than Dialipina, Cheirolepis and the polypteriforms, and represents the plesiomorphic sister-group of a clade including Howqualepis, Mimia, Moythomasia, Tegeolepis, Stegotrachelus and Kentuckia.

The rhadinichthyids (paleoniscoid actinopterygians) from the Bear Gulch Limestone of Montana (USA, Lower Carboniferous)

These fishes probably fed by suction, either at the bottom of the water column or by intake of floating nutritive particles, and were probably mechanical adaptations for a greater widening of the mouth cavity during abduction of the mandible.


Two new species of deep-bodied Paleozoic actinopterygians from Bear Gulch Limestone of Montana, USA are described and it appears that the Aesopichthyidae display no close relationship to the Platysomidae but should be the sister group of the Rhadinichthyid-group i.e., basal Actinopteri.

Morphology and Interrelationships of Primitive Actinopterygian Fishes

It is concluded that Cladistia are the sistergroup of Recent actinopterygians (Actinopteri), the two groups together comprising the Actinoperygii, and Recent chondrosteans are more closely related to higher act inopts than to cladistians.

Actinopterygians from the Namurian of Bearsden, Scotland, with comments on early actinopterygian neurocrania

Two new stem-actinopterans are described from the Manse Burn Formation of Bearsden, Glasgow, and several new basisphenoidal and postorbital wall characters are identified which are associated with early stages in posterior myodome evolution.

Interrelationships of lower actinopterygian fishes

The lower actinopterygian fishes are classified using dermal skull roof pattern, in particular the various configurations displayed by the bones on the otic branch of the infraorbital canal

A Revision Of Paramblypterid And Amblypterid Actinopterygians From Upper Carboniferous–Lower Permian Lacustrine Deposits Of Central Europe

According to this analysis, ParamblypterusAmblyopterus are contained in the same family, the Amblypteridae, and the genus Parambleypterus is the sister taxon of the genus Amblygyptus.

XVII.—The Actinopterygian Fishes from the Lower Carboniferous of Glencartholm, Eskdale, Dumfriesshire

The new descriptions in this work are not intended to be exhaustive accounts of all that is known of these fishes, but merely to serve as a supplement and summary to the excellent descriptions of Traquair.