The Papiliophyllidae (Lower Devonian Rugosa): Their systematics and reinterpreted biostratigraphic value in Nevada

2003 ◽  
Vol 77 (4) ◽  
pp. 601-624
Author(s):  
Alan E. H. Pedder ◽  
Michael A. Murphy
Keyword(s):  
New Species ◽  
Lower Devonian ◽  
Field Work ◽  
Single Specimen ◽  
New Subspecies ◽  
Novaya Zemlya ◽  
Lower Emsian ◽  
The Family ◽  
Conodont Zonation ◽  
North American Craton

Field work has greatly increased the number of well-dated papiliophyllid corals available from Nevada. The established range of the family is expanded from Pragian and lower Emsian to Pragian and almost the entire Emsian. Ranges of species are calibrated against Johnson faunal intervals and a revised Pragian and lowermost Emsian conodont zonation proposed by Murphy for Nevada. Study of all reposited material has led to some revision of every member of the family. Eurekaphyllum, previously imperfectly known from a single specimen of vague stratigraphic origin, is shown to be a useful upper Emsian index. Nine reported occurrences of the family in Europe and Asia are re-examined and, except for a possible occurrence on Novaya Zemlya, all are rejected. The three named genera of the family are apparently endemic to the southwestern North American craton. Papiliophyllum elegantulum asymmetricum new subspecies, P. murphyi new species and Eurekaphyllum vescum new species are described by Pedder.

scholarly journals A horseshoe crab (Arthropoda: Chelicerata: Xiphosura) from the Lower Devonian (Lochkovian) of Yunnan, China

2012 ◽  
Vol 150 (2) ◽  
pp. 367-370 ◽  
Author(s):  
JAMES C. LAMSDELL ◽  
JINZHUANG XUE ◽  
PAUL A. SELDEN
Keyword(s):  
New Species ◽  
South China ◽  
Yunnan Province ◽  
Lower Devonian ◽  
Horseshoe Crab ◽  
Single Specimen ◽  
Early Devonian ◽  
The Family ◽  
A New Species ◽  
Stratigraphic Range

AbstractA single specimen of a new species of the synziphosurine Kasibelinurus Pickett, 1993 is described from the Lower Devonian (Lochkovian) Xiaxishancun Formation of Yunnan Province, China. The new species, K. yueya sp. nov., extends the geographic extent of the family Kasibelinuridae from the Australian palaeocontinent to the South China palaeocontinent, and the stratigraphic range back some 50 Ma from Late to Early Devonian.

scholarly journals New Oriental and Australasian taxa of Colobathristidae (Hemiptera: Heteroptera) in the collection of the State Natural History Museum Stuttgart

2019 ◽  
Vol 59 (2) ◽  
pp. 403-422
Author(s):  
Viktor Hartung
Keyword(s):  
New Species ◽  
Natural History ◽  
New Caledonia ◽  
First Record ◽  
History Museum ◽  
New Subspecies ◽  
The Family ◽  
Two New Species ◽  
Biogeographic Regions ◽  
The Tropics

Abstract The Colobathristidae are a poorly studied family of Lygaeoidea distributed in the tropics and subtropics of Australasian, Neotropical, and Oriental biogeographic regions. Phaenacantha Horváth, 1904 is the largest genus of the family, with 33 described species. Here, two new species of Phaenacantha are described from Borneo (P. grimmae sp. nov. and P. nigrispina sp. nov.) and one from New Caledonia (P. paveli sp. nov.), all of which represent the first record of the genus from these islands. Also, a specimen of genus Symphylax Horváth, 1904 from Borneo is described that has strong similarities to S. handschini Kormilev, 1953 from the same island, but differs from it in some minor features and is considered a new subspecies, S. handschini kinabaluensis subsp. nov.

On the occurrence of Vinctifer ferrusquiai sp. nov. (Actinopterygii, Aspidorhynchiformes) in the Kimmeridgian (Late Jurassic) deposits near Tlaxiaco, Oaxaca, southern Mexico

2018 ◽  
Vol 35 (2) ◽  
pp. 179-187 ◽  
Author(s):  
Kleyton M. Cantalice ◽  
Jesús Alvarado-Ortega ◽  
Paulo M. Brito
Keyword(s):  
New Species ◽  
Late Jurassic ◽  
Unique Combination ◽  
Single Specimen ◽  
Posterior Edge ◽  
Southern Mexico ◽  
Sensory Canal ◽  
Marine Deposits ◽  
The Family ◽  
Dermal Bones

Vinctifer ferrusquiai sp. nov. is described in this paper. This aspidorhynchid fish was found in Kimmeridgian marine deposits of the Sabinal Formation, exposed in the Llano Yosobé, near Tlaxiaco, Oaxaca, Mexico. The single specimen of this species shows enough diagnostic characters to be included in the order Aspidorhynchiformes, the family Aspidorhynchidae, and the genus Vinctifer. These characters include an elongate rostrum consisting of the premaxillae fused and anteriorly elongated, forming a tube-like, as well as an preopercular sensory canal located close to the posterior edge of the preopercle. Other features are the lack of premaxilla, the development of a wide posterior expansion of the maxilla, and a stout triangular preopercle. A unique combination of characters supports the erection of this new species, whose ganoine on dermal bones of the head are strongly ornamented with tubercles and ridges, and the flank scales are entirely smooth and not serrated. This Jurassic record is the first indubitable pre-Cretaceous finding of Vinctifer, the oldest into the Hispanic Corridor, and the oldest in North America.

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.

The new genusTalacastospongia: insights on the first record of a Devonian sponge from South America

2015 ◽  
Vol 89 (6) ◽  
pp. 912-919 ◽  
Author(s):  
Marcelo G. Carrera ◽  
Juan José Rustán
Keyword(s):  
New Species ◽  
South America ◽  
Lower Devonian ◽  
New Genus ◽  
First Record ◽  
Hexactinellid Sponge ◽  
The Family ◽  
New Finding ◽  
Argentine Precordillera ◽  
Hexactinellid Sponges

AbstractThe Lower Devonian (Lochkovian) hexactinellid spongeTalacastospongia minimanew genus new species is reported from the lower beds of the Talacasto Formation in the Argentine Precordillera. It represents the first Devonian sponge from South America and the best record in the paleobiogeographic context of the Malvinokaffric Realm, otherwise virtually devoid of spiculate sponges. This discovery provides some tentative insights on the age and oldest record of the Family Pileolitidae. The paleogeographical context for this new finding shows a high latitude setting with a notable scarcity of hexactinellid sponges recorded to date in Devonian Malvinokaffric basins, and the absence of calcareous spiculate sponges (heteractinids) and hypercalcified sponges (stromatoporoids, sphinctozoans).

A revision of the Australasian species of the freshwater genera Boeckella and Hemiboeckella (Copepoda: Calanoida)

1964 ◽  
Vol 15 (2) ◽  
pp. 180 ◽  
Author(s):  
IAE Bayly
Keyword(s):  
New Species ◽  
New Zealand ◽  
Monotypic Genus ◽  
Single Specimen ◽  
New Subspecies ◽  
Two New Species ◽  
The Status ◽  
General Aspects ◽  
First Time

The taxonomic utility of various characters is discussed. The status of Hemiboeckella searli Sars is discussed, and the retention of the monotypic genus Hemiboeckella is considered to be justified. A list of generic characters is given for both Boeckella and Hemiboeckella, a key is given to the Australasian species of Boeckella and is accompanied by comparative drawings. Except for B. minuta Sars, this key does not enable female specimens to be identified. The number of Australasian species of Boeckella previously described is reduced from 25 to 14 by synonymy. Two new species, B. geniculata and B. montana, and a new subspecies, B. robusta maxima, are described. Another apparently new species is figured but not named (based on a single specimen only). Two species described from New Zealand are recorded from Australia for the first time. The male fifth legs of all species are described and, except for B. opaqua Fairbridge, all are figured. Additional features are also figured for some species. The distribution of species and some general aspects of their ecology are discussed.

Demosponges and hexactinellid sponges from the Lower Devonian Ross Formation of west-central Tennessee

1995 ◽  
Vol 69 (2) ◽  
pp. 211-232 ◽  
Author(s):  
J. Keith Rigby ◽  
Craig R. Clement
Keyword(s):  
New Species ◽  
North America ◽  
Marine Environment ◽  
Lower Devonian ◽  
Normal Wave ◽  
Lower Carboniferous ◽  
West Central ◽  
The Family ◽  
Benton County ◽  
Hexactinellid Sponges

A fauna of eight taxa of demosponges and hexactinellid sponges has been collected from the Lower Devonian (Lochkovian) Ross Formation, largely out of the upper Birdsong Shale Member in Benton, Decatur, and Perry Counties in west-central Tennessee. The Upper Birdsong Shale (“bryozoan zone”) in which the sponges are most common appears to have been deposited below normal wave base in a quiet marine environment, and represents a terrigenous clastic sediment influx onto a carbonate shelf that had existed in the area from at least the middle Silurian. Benton Quarry in Benton County was the most productive locality for fossil sponges.The new demosponge genera and species Ginkgospongia foliata and Coniculospongia radiata occur with the new species Haplistion lobatum and skeletal mats of fine spicules, along with moderately rare specimens of Hindia sphaeroidalis Duncan. The new hexactinellid genus and species Stiodermiella amanita and Stiodermiella tetragona are characterized by peculiar ornamented papillose, swollen spicules that produce a massive, armored layer on the upper part of the sponge. The latter are associated with the new hexactinellid species Twenhofelella bulbulus, which has relatively normal-appearing hexactines, and with an indeterminate hexactinellid genus, which has spinose hexactines in irregular orientation in a small, platelike fragment. Root tufts of probable hexactine origin also occur.Swollen spicules in Stiodermiella are reminiscent of swollen spicules in the family Stiodermatidae Finks, largely from the Permian of western Texas, but elements of the family are also known from Lower Carboniferous to Permian rocks in Europe and North America.

A REVISION OF THE ALLECULIDAE (COLEOPTERA) OF THE WEST INDIES

1971 ◽  
Vol 103 (S81) ◽  
pp. 7-140 ◽  
Author(s):  
J. M. Campbell
Keyword(s):  
New Species ◽  
West Indies ◽  
Lesser Antilles ◽  
Cayman Islands ◽  
New Genera ◽  
The West ◽  
New Subspecies ◽  
Diagnostic Characters ◽  
The Family ◽  
First Time

AbstractEleven genera and 70 species of West Indian Alleculidae are revised. All known taxa of the family from the Bahama Islands, the Greater and Lesser Antilles, and the Cayman Islands are included. Five new genera (Parahymenorus, Latacula, Notacula, Obesacula, and Punctacula) are described and three genera are recorded from the West Indies for the first time (Cteisa, Pseudocistela, and Allecula). All five of the described subgenera of Lobopoda are recorded from the region, Glabrilobopoda for the first time. Forty-seven new species and one new subspecies are described in the genera Pseudocistela, Lobopoda, Allecula, Hymenorus, Parahymenorus, Latacula, Notacula, Obesacula, and Punctacula. Cistelopsis striatus Pic is transferred to the genus Hymenorus.Keys to the genera, subgenera, species, and subspecies are presented. All taxa are described or redescribed and major diagnostic characters are illustrated. Habitus illustrations are included for each genus. A zoogeographic discussion of the taxa, including distributional tables, is presented.

The aulacopleurid trilobiteMaurotarionAlberti, 1969, in the Silurian-Devonian of Argentina: systematic, phylogenetic and paleobiogeographic significance

2010 ◽  
Vol 84 (6) ◽  
pp. 1082-1098 ◽  
Author(s):  
Juan J. Rustán ◽  
N. Emilio Vaccari
Keyword(s):  
South Africa ◽  
New Species ◽  
Sea Level ◽  
South African ◽  
Lower Devonian ◽  
Relative Sea Level ◽  
African Species ◽  
Level Curves ◽  
New Subgenus ◽  
The Family

Five new species ofMaurotarionAlberti, 1969 from the Silurian Lipeón Formation and Lower Devonian Talacasto Formation of Argentina are recognized. The comparisons with Bolivian and South African species support a Malvinokaffric clade based on librigenal synapomorphies, here erected asMaurotarion(Malvinotarion) new subgenus. The Malvinokaffric origin of the family would not be a migration from lower paleolatitudes but an Early Silurian stock of rare cosmopolitan ancestors which underwent a great Devonian radiation. Two lineages can be recognized within MalvinokaffricMaurotarion.The Silurian-Pragiandereimsilineage is a plesiomorphic one resembling Silurian representatives and involvesM.(Malvinotarion)dereimsi, M.(Malvinotarion)talacastoensenew species,M.(Malvinotarion?) new species A,M.(Malvinotarion?) new species B,M.(Malvinotarion) sp., and eventuallyM. (Malvinotarion?)cf.dereimsi.Theisaacsonilineage ranges from the Lower Pragian to Eifelian exhibiting a defined morphologic trend in the librigena. This lineage comprisesM.(Malvinotarion)isaacsoni, M.(Malvinotarion) sp. A from South Africa,M.(Malvinotarion)gauchonew species,M.(Malvinotarion)haudeinew species andM.(Malvinotarion)legrandi.A Lochkovian diversification probably took place yet an adequate assessment remains difficult. In contrast, a great evolutionary burst is recognized during the Emsian and is related to Pragian-Emsian global relative sea level curves which are coincident with those proposed from Bolivian and Argentinian basins.

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