Topic
Mucrospirifer
About: Mucrospirifer is a research topic. Over the lifetime, 11 publications have been published within this topic receiving 52 citations.
Papers
1 Jan 1956
TL;DR: The entire sequence of the Yukiang Formation exceeds 230 meters in thickness, and the brachiopod fauna described in the present paper was obtained from theupper part of this formation, which may be correlated with the early Middle Devonian or the Eifelian of Central Europe.
Abstract: The material treated in the present paper came from the Yukiang Formation near the Luching Station,Hsiangkwei Railway,southern Kwangsi Province.Thecollection was made by Mr.K.K.Chao,through whose kindness I am given theprivilege of studying this interesting group of brachiopods.The entire sequence of the Yukiang Formation exceeds 230 meters in thickness,and the brachiopod fauna described in the present paper was obtained from theupper part of this formation.The fossiliferous bed is easily subjected to denudation;most of the specimens are perfectly weathered out and fairly well preserved.Thefauna is dominated by brachiopods both in number of species and in individuals.The remaining macrofossils include corals,bryozoans,mollusks and trilobites.Judgingfrom the faunal affinities of the brachiopods,the stratigraphical position of the Yu-kiang Formation may be correlated with the early Middle Devonian or the Eifelianof Central Europe.In the systematic part of the paper,the following 10 species are descbed anddiscussed:Rhynchonellacea 2:Camarotoechia parasappho,Uncinulus mesodeflectus.Spiriferacea 2:Elytha transversa,Mucrospirifer increbescens.Rostrospiracea 1:Meristella grandis.Strophomenacea 3:Cymostrophia quadratus,?Nervostrophia gigantea,Shaleria(Telaeoshaleria) yukiangensis.Productacea 1:Chonetes kwangsiensis.Dalmanellacea 1:Levenea depressa.A more complete report concerning the whole brachiopod fauna of the YukiangFormation is in the course of preparation.The material described and figured hereinincludes only that part of the specimens adopted in the Chinese edition“Index Fossilsof China.”An English version of this paper will be published in Scientia Sinica Vol.Ⅴ,No.2,1956.
11 citations
1 Jan 1978
TL;DR: A brachiopod fauna from the type locality of the Port Refugio Formation on Suemez Island, 24 km south of Craig, southeastern Alaska, is described and illustrated, and none of the forms is conspecific with previously described material, and the fauna is unusually provincial at a time whenBrachiopods were generally cosmopolitan.
Abstract: A brachiopod fauna from the type locality of the Port Refugio Formation on Suemez Island, 24 km south of Craig, southeastern Alaska, is described and illustrated. The fauna consists of Cyrtospirifer buddingtoni n. sp., Mucrospirifer refugiensis n. sp., Crurithyris alaskensis n. sp., Johnsonathyris adrianensis n. gen., n. sp., Cleiothyridina milleri n. sp., Rugaltarostrum congregabile n. sp., Chapinella bucareliensis n. gen., n. sp., Kindleina suemezensis n. gen., n. sp., Allorhynchoides kirki n. gen., n. sp., and Rhipidomella sp. All these species except Crurithyris alaskensis occur together in what is considered to be a single community named the Johnsonathyris Community. Crurithyris alaskensis occurs in a separate horizon, about 1.3 m above the other species. The Johnsonathyris Community consisted of epifaunal suspension feeders living on a silty calcareous substratum. A middle to late Famennian age is assigned to the fauna. Although the biogeographic affinities of the fauna seem to be mainly with North America, none of the forms is conspecific with previously described material, and the fauna is unusually provincial at a time when brachiopods were generally cosmopolitan. Some degree of isolation from other North American brachiopod faunas is indicated.
11 citations
Journal Article•
TL;DR: One new genus including five new species of Spiriferidae, hitherto confused with Mucrospirifer, are described from the new oil fields of Alberta, Canada, from late Middle and early Upper Devonian formations.
Abstract: One new genus including five new species of Spiriferidae, hitherto confused with Mucrospirifer, are described from the new oil fields of Alberta, Canada, from late Middle and early Upper Devonian formations.
10 citations
TL;DR: In this article, six genera and eight species of Famennian spiriferide brachiopods are described from the Duguer Member and its equivalents of the Hongguleleng Formation in western Junggar, adding new data to the Rugaltarostrum Subassemblage of the “Palaeospirifer”-Megalopterorhynchus Brachiopod Assemblage.
7 citations
TL;DR: The hypothesis that Gaspe served as a stepping stone for Rhenish species invading North America in Pragian and Emsian times, as previously suggested by bivalve biogeography is reinforced.
Abstract: The component subfamilies of the Delthyridoidea are critically reviewed and subjected to phylogenetic analysis. This shows the presence of two clades, assigned to the Delthyrididae and Acrospiriferidae, within the superfamily. The subfamilial categories are redefined mainly on the basis of the characters used in the phylogenetic analysis. The spiriferid, mainly delthyridide, Gaspe fauna is formally revised and redescribed. This new taxonomic treatment leads to more precise biostratigraphy and to the recognition of a new subfamily, the Gaspespiriferinae, based on the new genus Gaspespirifer. Five new species are described: Howellella (Howellella) forillonensis, Brachyspirifer (Brachyspirifer) briseboisi, Paraspirifer desbiensi, Brevispirifer florentinus, and B. quebecensis, The occurrence of Brevispirifer species with Middle Devonian chonetaceans confirms the presence of marine Eifelian strata in the Matapedia Valley. Paraspirifer desbiensi n. sp. and two species left in open nomenclature, Vandercammenina sp. and Mucrospirifer sp., have considerable biostratigraphic and biogeographic significance in the Lower Devonian. The first occurrence in the Eastern Americas Realm of the typically Rhenish genera Brachyspirifer, Paraspirifer, and Vandercammenina are in Gaspe. This reinforces the hypothesis that Gaspe served as a stepping stone for Rhenish species invading North America in Pragian and Emsian times, as previously suggested by bivalve biogeography.
6 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2017 | 1 |
| 2013 | 1 |
| 2008 | 1 |
| 1999 | 1 |
| 1978 | 1 |
| 1967 | 3 |