Cycloidea of the Mississippian Bear Gulch Limestone of central Montana

@article{Schram2006CycloideaOT,
  title={Cycloidea of the Mississippian Bear Gulch Limestone of central Montana},
  author={Frederick R. Schram and Arjan C. Boere and N. Thomas},
  journal={Contributions in science},
  year={2006}
}
A new species of cycloid crustacean, Halicyne montanaensis, is described from the uppermost Mississippian locality at Bear Gulch, in central Montana. Although the species is a rare component of the fauna and the specimens at hand are not well preserved, the material does allow comparison to other species in the genus. The addition of H. montanaensis to the species list of the Bear Gulch fauna strengthens similarities to other Carboniferous Konservat-Lagerstätten in Europe and North America and… 

Figures from this paper

First cyclid crustacean from East Asia

Based on a single specimen from Serpukhovian (Late Mississippian/late Early Carboniferous) limestone, Niigata Prefecture, central Japan, we describe a new species of cyclid crustacean, Cyclus

Redescription of Americlus rankini (Cyclida, Americlidae) and interpretation of its systematic placement, morphology, and paleoecology

The best-preserved Scottish species of cyclidan is reinterpreted, based upon recent advances in cyclidan paleobiology. Americlus rankini (Woodward, 1868) is one of the best preserved members of this

Redescription of Americlus rankini (Woodward, 1868) (Pancrustacea: Cyclida: Americlidae) and interpretation of its systematic placement, morphology, and paleoecology

TLDR
The best-preserved Scottish species of a cyclidan is reinterpreted, based upon recent advances in cyclidan paleobiology, and Paleoecological evidence suggests that the animal was most likely free living, possibly as a scavenger, in a marginal marine environment.

A pyritized polychaete from the Devonian of Ontario

TLDR
The polychaete, Arkonips topororum, falls within the Palpata, Aciculata, among the crown group Phyllodocida, and highlights the potential of the Arkona Shale to yield other examples of soft-tissue preservation.

Jaw-bearing polychaetes of the Silurian Eramosa Lagerstätte, Ontario, Canada

Abstract. The Wenlock (middle Silurian) Eramosa Lagerstätte of the Bruce Peninsula, Ontario, Canada, is becoming known for its rich and diverse faunas, different preservational styles, and a

A CARBONIFEROUS SYNZIPHOSURINE (XIPHOSURA) FROM THE BEAR GULCH LIMESTONE, MONTANA, USA

Abstract:  A new synziphosurine, Anderella parva gen. et sp. nov., extends the known range of this group from the Silurian to the Carboniferous and is the youngest known so far from the fossil

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

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

Gill structure and relationships of the Triassic cycloid crustaceans

  • J. Dzik
  • Biology
    Journal of morphology
  • 2008
TLDR
It is proposed that the cycloid gills originated, in connection with the body size increase and adaptation to fresh‐water environment, as radially arranged infoldings of the respiratory areas cuticle, with strongly calcified rigid dorsal parts suspended from the carapace.

Annelids from the Lower Devonian Hunsrück Slate (Lower Emsian, Rhenish Massif, Germany)

Abstract:  Four new genera and species of annelid, Hunsrueckochaeta hohensteini, Ewaldips feyi, Crocancistrius lutzi and Scopyrites magnus, are described from the Hunsrück Slate (Lower Emsian) of

References

SHOWING 1-10 OF 10 REFERENCES

Mazon Creek Cycloidea

TLDR
It is concluded, based on a cladistic analysis, that cycloids are specialized maxillopodan crustaceans and a possible sister group to the Copepoda.

THE MAZON CREEK BIOTAS IN THE CONTEXT OF A CARBONIFEROUS FAUNAL CONTINUUM

  • F. Schram
  • Environmental Science, Geography
  • 1979

Palaeo- and archaeostomatopods (Hoplocarida, Crustacea) from the Bear Gulch Limestone, Mississippian (Namurian), of central Montana

TLDR
A cladistic phylogenetic analysis of the Hoplocarida including the Paleozoic forms resolves the higher level relationships of the hoplocarids and reveals some newly recognized characters of those taxa and suggests some novel interpretations of hop Locarid evolution.

Systematics and paleoecology of malacostracan arthropods in the Bear Gulch Limestone ( Namurian ) of central Mon

  • Annals of Carnegie Museum
  • 1985

The Bear Gulch crustaceans and their bearing on Late Paleozoic diversity and Permo – Triassic evolution of Malacostraca

  • Compte Rendu , IX Congrès International de Stratigraphie et de Géologie du Carbonifère
  • 1985

Types of Carboniferous Xiphosura new to North America

  • American Naturalist
  • 1835

Crustacea of the Mississippian Bear Gulch Limestone of central Mon

  • Journal of Paleontology
  • 1978