Lower Devonian (Emsian) rugosa of the Izarne Formation, Montagne Noire, France

1998 ◽  
Vol 72 (6) ◽  
pp. 967-991 ◽  
Author(s):  
Alan E. H. Pedder ◽  
Raimund Feist
Keyword(s):  
New Species ◽  
Lower Devonian ◽  
New Genus ◽  
New Genus And Species ◽  
Coral Fauna ◽  
The North ◽  
Lower Member ◽  
Rugose Corals ◽  
Montagne Noire ◽  
Middle Member

An account of the systematics, biostratigraphy, ecological setting and the biogeographic implications of rugose corals from olistoliths of the Cabrières area is given. Corals of the lower member of the Izarne Formation are dated by conodonts as gronbergi Zone age, and include Lythophyllum sp. indet., Calceola sandalina (Linné), Tryplasma sp. A, Breviphrentis roharti Pedder new species, B. exigua Pedder new species, and Aqishaphyllum sp. A. Corals from the middle member of the formation include Frechocystis pertinax Pedder new genus and species, Calceola sp. undet., Rhizophyllum sp. aff. R. ukalundense Hill and Jell, Tryplasma enorme Pedder new species, Tryplasma sp. A, Breviphrentis sp. A, Platysmatophyllum halleri Pedder new genus and species, Pseudochonophyllum sentum Pedder new species, and Izarneophyllum barroisi (Frech) new genus. No age significant conodont has been recovered from the middle member. However, scutelluid trilobites, which, together with other trilobites, evidently used the underside of Izarne corals for shelter during molting, provide correlation with conodont sequences in the nappe domain to the north and southwest of Cabrières. From this line of evidence, the middle Izarne coral fauna is deduced to be nothoperbonus Zone age. The association of a variety of benthic trilobites, all with large eyes, provides evidence of a photic zone environment for the middle Izarne corals.Rugose corals from the Izarne Formation belong to the Old World Realm and have nothing in common with similar age Rugosa of the Eastern Americas Realm. This implies that the dissolution of the boundary between these realms, which occurred in the Middle Devonian, did not begin before latest Emsian time.

Upper Triassic corals from Nevada, western North America, and the implications for paleoecology and paleogeography

2013 ◽  
Vol 87 (5) ◽  
pp. 934-964 ◽  
Author(s):  
Ewa Roniewicz ◽  
George D. Stanley
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Upper Triassic ◽  
Late Triassic ◽  
Western North America ◽  
North American Cordillera ◽  
Coral Fauna ◽  
Taxonomic Analysis ◽  
The North

Late Carnian–early Norian corals from the Luning and Osobb formations in west-central Nevada represent an important Late Triassic fauna for understanding the paleoecology and the paleogeography of the eastern Panthalassa region during Late Triassic time. The corals occur in bedded limestone representing biostromes and patch reefs and their composition presages the important global changeover of faunas of the intra-Norian interval. A taxonomic analysis of over 60 specimens reveals a majority of colonial corals ranging from cerioid, astreoid (i.e., cerioid-plocoid lacking walls), meandroid and thamnasterioid types. Surprisingly, remnants of the original aragonite microstructure remain in some specimens, allowing a better comparison with more remote Tethyan corals. In total, 14 genera have been identified from Nevada while two genera remain undetermined. The fauna is composed of species considered typical of both the North American Cordillera and cratonal South America. The following genera and species are new and endemic to the Americas:Khytrastrea silberlingiandK. cuifiamorpha,Flexastrea serialis,Nevadoseris punctata,Areaseris nevadaensisand a new genusMinasteria(withAstrocoenia shastensisSmith, 1927 as type species). Likewise are the new species:Margarogyra silberlingiandCurtoseris dunlapcanyonae. GeneraMeandrovolzeia,Margarogyra,Ceriostella,Ampakabastraea,Retiophyllia,Distichomeandra,Curtoseris,ThamnasteriaandAstraeomorphaprovide important links to the former Tethys province. The revised coral fauna changes previous views of the close taxonomic similarity with the Tethys, instead producing a paleogeographic pattern emphasizing a much greater degree of endemism. This pattern emphasizes the isolation of Nevada from the Tethys and the similarities with some outboard terranes of the Cordillera.

A new genus and a new species of Tropidopolinae (Orthoptera: Acrididae) from India

ENTOMON ◽  
2019 ◽  
Vol 44 (3) ◽  
pp. 191-196
Author(s):  
Mohd. Imran Khan ◽  
Mohd. Kamil Usmani
Keyword(s):  
New Species ◽  
New Genus ◽  
Species Level ◽  
Female Genitalia ◽  
Eastern Region ◽  
New Genus And Species ◽  
Male And Female ◽  
The North ◽  
North Eastern ◽  
A New Species

A new genus Neooxyrrhepes gen. n. with a new species Neooxyrrhepes meghalayensis n. from Meghalaya, a state of the North Eastern region of India. Description and illustrations of the new genus and species are given. A key to the genera of subfamily Tropidopolinae from North Eastern states of India is also provided. Additonally the characters of male and female genitalia at generic and species level are also given.

Late Paleozoic edrioasteroids (Echinodermata) from the North American Midcontinent

1996 ◽  
Vol 70 (6) ◽  
pp. 969-985 ◽  
Author(s):  
Colin D. Sumrall
Keyword(s):  
New Species ◽  
North American ◽  
Type Species ◽  
New Genus ◽  
Late Paleozoic ◽  
New Genus And Species ◽  
New Classification ◽  
The North ◽  
Three New Species ◽  
To Receive

A new classification is proposed for late Paleozoic Edrioasteroidea (Echinodermata), separating forms with the advanced clavate thecal design from those with the ancestral pyrgate thecal design, and a new Subfamily Discocystinae is erected to receive the clavate agelacrinitid edrioasteroids. Lepidodiscus Meek and Worthen is restricted to the pyrgate type species L. squamosus (Meek and Worthen) and two unnamed species, whereas the clavate L. laudoni (Bassler) is assigned to Clavidiscus, new genus. The clavate Discocystis priesti Strimple and three new species, Hypsiclavus kinsleyi, new genus and species, Hypsiclavus huntsvillensis, new genus and species, and Hypsiclavus guensburgi, new genus and species, are placed in Hypsiclavus, new genus. Bostryclavus, new genus, is erected to receive Echinodiscus sampsoni Miller. A redescription of Discocystis kaskaskiensis (Hall) and a diagnosis of Spiraclavus Sumrall are included for completeness.

Two new cirroidean genera (Vetigastropoda, Archaeogastropoda) from the Emsian (Late Early Devonian) of Alaska with notes on the early phylogeny of Cirroidea

1998 ◽  
Vol 72 (2) ◽  
pp. 265-273 ◽  
Author(s):  
Jiří Frýda ◽  
Robert B. Blodgett
Keyword(s):  
New Species ◽  
Lower Devonian ◽  
New Genus ◽  
New Genus And Species ◽  
Early Devonian ◽  
West Central ◽  
The Family ◽  
First Time ◽  
Stratigraphic Range

Two new cirroidean gastropod genera, Alaskiella (family Porcelliidae) and Alaskacirrus (family Cirridae), from the Emsian (late Early Devonian) of west-central Alaska (Medfra B-4 quadrangle) are described. The shell of Alaskiella medfraensis new genus and species exhibits inclined heterostrophic coiling. This shell character is known among other members of the subclass Archaeogastropoda, but is recorded for the first time within members of the superfamily Cirroidea. Inclined heterostrophic coiling of the shell was probably developed independently in several different groups of the subclass Archaeogastropoda. The new genus Alaskacirrus, represented by Alaskacirrus bandeli new species, is the oldest and only known Paleozoic member of the family Cirridae. This suggests that the family Cirridae was separated from the family Porcelliidae since at least Early Devonian time and that it most probably developed from the subfamily Agnesiinae of the family Porcelliidae. Thus, the stratigraphic range of the family Cirridae is at least from Lower Devonian to Cretaceous, an interval of about 350 million years.

scholarly journals Upper Carboniferous seed fern (Pteridospermophyta) pollen organs from Silesia (Poland) and related evolution considerations

2014 ◽  
Vol 100 ◽  
pp. 1-81 ◽  
Author(s):  
Grzegorz Pacyna ◽  
Danuta Zdebska
Keyword(s):  
New Species ◽  
New Genus ◽  
Radial Symmetry ◽  
Seed Plants ◽  
New Genus And Species ◽  
Typical Species ◽  
Reproductive Structures ◽  
The North ◽  
Compound Pollen ◽  
First Time

Extinct seed ferns (Pteridospermophyta) fill a key position in the evolutionary tree of seed plants. Their reproductive structures enable to recognition of the interrelationship within seed ferns and other seed plants descending from them. Seed fern reproductive structures from Poland are very rarely found and very poorly known, especially the pollen organs to which this paper is dedicated. A new genus and species <em>Silesiatheca formosa</em><em> </em>Pacyna &amp; Zdebska, gen. et sp. nov. of lyginopteridalean aggregated synangia was recognized based on specimens preserved within sideritic nodules from Sosnowiec. The genus <em>Codonotheca </em>is recognized from European Carboniferous for the first time. The least evolutionarily advanced species of <em>Codonotheca</em><em> </em>− <em>Codonotheca</em><em> silesiaca</em><em> </em>Pacyna &amp; Zdebska sp. nov., is described based on specimens with weakly expressed radial symmetry and slight fusion of the sporangia. this species matches the hitherto hypothetical simplest species of <em>Codonotheca </em>very well, constituting the initial form for all the more compound pollen organs of Medullosales. For the first time in the European Carboniferous the North American species <em>Aulacotheca campbellii </em>(White, 1900) Halle, 1933 is recognized. A new emended diagnosis for the typical species <em>Boulayatheca fertilis </em>(Kidston, 1914) Taylor &amp; Kurmann, 1985 is proposed, based on specimens from Poland. Two new species of genus <em>Boulayatheca </em>Taylor &amp; Kurmann, 1985 are recognized. <em>Boulayatheca ciliata </em>Pacyna &amp; Zdebska, sp. nov. with a synangium surface covered with hairs (a feature hitherto unknown in the <em>Boulayatheca </em>genus) and <em>Boulayatheca saganii </em>Pacyna &amp; Zdebska, sp. nov<em>. </em>with a markedly elongated synangium. Occurrence of <em>Whittleseya </em>Newberry, 1853a emend. Halle, 1933 typical species <em>− Whittleseya elegans </em>Newberry, 1853a was confirmed in Lower Silesia based on new specimens. Some specimens referred to earlier in the literature as <em>W. elegans </em>were ascribed here to the new species <em>W. silesiaca</em><em> </em>Pacyna &amp; Zdebska, sp. nov<em>.</em>, which differs from typical species in synangium shape and sporangia clustering into groups. The new species <em>Whittleseya campanulata </em>Pacyna &amp; Zdebska, sp. nov<em>. </em>has a large synangium and sporangia clustering into groups. Heterogeneity within the genus <em>Whittleseya </em>is recognized, where some species, including those new described here, probably formed compound synangia. The aggregated synangia of Medullosales are recognized in thecompression state of preservation for the first time they are the base for establishing a new genus and species <em>Kotasotheca annaeadamii </em>Pacyna &amp; Zdebska, gen. et sp. nov. The genus <em>Dolerotheca</em><em> </em>Halle, 1933 was recognized in the Polish Carboniferous for the first time and a new species <em>Dolerotheca migierii</em><em> </em>Pacyna &amp; Zdebska, sp. nov. was described. T.N. Taylor’s model of evolution of medullosalean pollen organs was confirmed, and the new taxa described were included within it.

Late Permian rugose corals from Gyanyima of Drhada, Tibet (Xizang), Southwest China

2019 ◽  
Vol 93 (5) ◽  
pp. 856-875
Author(s):  
Xiaojuan Wang ◽  
Xiangdong Wang ◽  
Yichun Zhang ◽  
Changqun Cao ◽  
Dongjin Lee
Keyword(s):  
New Species ◽  
Coral Reefs ◽  
Intraspecific Variation ◽  
New Genus ◽  
Southwest China ◽  
Late Permian ◽  
Coral Fauna ◽  
Rugose Corals ◽  
Rugose Coral ◽  
The World

AbstractThe rugose corals described in this study were collected from the Gyanyima section in the Ngari region of southwestern Tibet (Xizang) and are assigned to three genera and 11 species, including a new genus and seven new species: Waagenophyllum (Waagenophyllum) ngariense He, 1990; W. (W.) elegantulum He in Luo et al., 1989; W. (W.) minutum Zhao, 1981; W. (W.) tachtabulasicum Ilyina, 1997; W. (W.) gyanyimaense n. sp., W. (W.) intermedium n. sp., Waagenophyllum (Liangshanophyllum) clisicolumellum n. sp., Ipciphyllum naoticum n. sp., I. floricolumellum n. sp., I. zandaense n. sp., and Gyanyimaphyllum crassiseptatum n. gen. n. sp. Ontogeny and intraspecific variation are given special attention when describing and discussing these taxa. Coral reefs, with Waagenophyllum as the major skeletal reef builder, occur in several horizons in the uppermost part of the section. The accompanying foraminifers indicate the rugose coral fauna is a late Permian Changhsingian age. Therefore, this is possibly one of the latest Permian rugose coral reefs in the world known up to now.UUID: http://zoobank.org/b9e621cb-197d-4208-8267-14d62f382a1b

scholarly journals A new genus and species of alvinocaridid shrimp (Crustacea: Decapoda: Caridea) from hydrothermal vents on the North Fiji and Lau Basins, south-western Pacific

2004 ◽  
Vol 84 (6) ◽  
pp. 1179-1188 ◽  
Author(s):  
Tomoyuki Komai ◽  
Michel Segonzac
Keyword(s):  
New Species ◽  
Hydrothermal Vents ◽  
New Genus ◽  
Intermediate Position ◽  
Western Pacific ◽  
New Taxon ◽  
New Genus And Species ◽  
Lau Basin ◽  
The North ◽  
North Fiji Basin

Nautilocaris saintlaurentae gen. nov., sp. nov., is described and illustrated from hydrothermal vents in the North Fiji Basin and Lau Basin in the south-western Pacific. This new taxon is assigned to the Alvinocarididae. It has a well-developed, dorsally dentate rostrum, carapace with pterygostomian spine present, eye broadly fused mesially, epipod–setobranch complex present above pereopods, and appendix internae on second to fourth pleopods greatly reduced. This combination of characters places it in an intermediate position between a group of species in the genus Alvinocaris with well developed, dorsally dentate rostrum, carapace with pterygostomian spine present, eyes narrowly fused mesially, epipod–setobranch complex absent and well-developed appendices internae on second to fourth pleopods, and Mirocaris fortunata with rostrum unarmed, carapace with rounded pterygostomian angle, eye broadly fused mesially, epipod–setobranch complex present above pereopods and appendices internae on second to fourth pleopods greatly reduced. The habitat of the new species is briefly described.

New Early Permian colonial rugose corals from the central Cordilleran miogeocline, U.S.A.

2010 ◽  
Vol 84 (3) ◽  
pp. 529-537 ◽  
Author(s):  
Calvin H. Stevens
Keyword(s):  
New Species ◽  
North America ◽  
New Taxa ◽  
North American ◽  
New Genus ◽  
Early Permian ◽  
Ural Mountains ◽  
The North ◽  
Rugose Corals

Five new species of Early Permian (late Sakmarian to Kungurian) colonial corals from eastern Nevada and southeastern California, one assigned to a new genus, are described and illustrated. These includeHeintzella playfordin. sp. from the Arcturus Formation in Nevada and the Darwin Canyon Formation in California,Paraheritschioides fergusonensisn. sp. from the Ferguson Mountain and Bird Spring formations in Nevada, andWendoverella arcan. gen. and n. sp.,Permastraea nevadensisn. sp., andPararachnastraea moormanensisn. sp. from the Pequop Formation in eastern Nevada. These new taxa are distinct from all previously described species, but most are related to other species in the North American miogeocline.Wendoverella arcan. sp., however, is unlike any other species described from North America but is quite similar to a Russian species, indicating faunal communication between the Ural Mountains and the Cordilleran miogeocline at least into Artinskian time.

scholarly journals Productidinid brachiopods (Strophomenata, Productida), including Martinezchaconia luisae new genus and new species of Linoproductidae, from the Carboniferous of Santiago Ixtaltepec region, Oaxaca, Southeast México

2018 ◽  
Vol 33 (1) ◽  
pp. 205
Author(s):  
Miguel A. TORRES-MARTÍNEZ ◽  
Francisco SOUR-TOVAR
Keyword(s):  
New Species ◽  
New Genus ◽  
New Genus And Species ◽  
Southern Mexico ◽  
The North ◽  
Middle Mississippian ◽  
Index Species ◽  
The Family ◽  
Southeast Mexico

We describe three brachiopod species of the Suborder Productidina from the Ixtaltepec Formation, Carboniferous of the north of Oaxaca State, southern Mexico, found in peri-reef deposits. Stegacanthia bowsheri and Undaria sp. are members of the families Sentosiidae and Monticuliferidae respectively and were found in strata of the Visean (Middle Mississippian). Martinezchaconia luisae, new genus and species of the Family Linoproductidae, was recollected in Bashkirian-Moscovian (Lower-Middle Pennsylvanian) strata. The respective ages are inferred from the index species of brachiopods associated with the productidines herein described.

Sign in / Sign up

Export Citation Format

Share Document