Latest Changhsingian orthotetid brachiopods in the Dolomites (Southern Alps, Italy): ecological opportunists at the peak of the end-Permian mass extinction

2011 ◽  
Vol 85 (1) ◽  
pp. 58-68 ◽  
Author(s):  
Renato Posenato
Keyword(s):  
Mass Extinction ◽  
Type Species ◽  
New Genus ◽  
Southern Alps ◽  
Valid Species ◽  
New Genus And Species ◽  
Type Specimens ◽  
Extinction Peak ◽  
Permian Mass Extinction ◽  
Stratigraphic Interval

The majority of Changhsingian orthotetid brachiopod species from the Southern Alps were described by the end of the nineteenth century, but were then neglected by subsequent authors who proposed further new species, giving rise to great taxonomical confusion. An examination of type-specimens and newly collected material permits the consideration ofOrthothetina ladina(Stache, 1878) andOmbonia tirolensis(Stache, 1878), type-species ofOmbonia, as the only valid species and describeTeserina neriias a new genus and species. The former two species are mostly located within a short stratigraphic interval, which is a few centimetres thick, limited by the trigger and peak of the end-Permian mass extinction.Teserina neriin. gen. n. sp. occurs 2–3 m above the extinction peak and represents one of the last Permian rhynchonelliform brachiopod holdovers in the Southern Alps.

scholarly journals Bothriocephalidean tapeworms (Cestoda) of freshwater fish in Africa, including erection of Kirstenella n. gen. and description of Tetracampos martinae n. sp.

Zootaxa ◽  
2012 ◽  
Vol 3309 (1) ◽  
pp. 1 ◽  
Author(s):  
ROMAN KUCHTA ◽  
ALENA BURIANOVÁ ◽  
MILOSLAV JIRKŮ ◽  
ALAIN DE CHAMBRIER ◽  
MIKULÁŠ OROS ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
Type Species ◽  
New Genus ◽  
Large Subunit ◽  
Molecular Data ◽  
Lake Malawi ◽  
Valid Species ◽  
Type Specimens ◽  
Host Genus ◽  
Large Subunit Rdna

A survey of bothriocephalidean tapeworms (Cestoda) parasitizing African freshwater fish is provided. Based on criticalevaluation of type specimens and extensive, newly collected material, only the following seven species, instead of 19 taxalisted in the literature, are considered to be valid and their redescriptions are provided: Bothriocephalus acheilognathiYamaguti, 1934 (with 3 synonyms from Africa); Bothriocephalus claviceps (Goeze, 1782) (marginally in Africa);Ichthybothrium ichthybori Khalil, 1971; Kirstenella gordoni (Woodland, 1937) n. comb. (1 synonym); Polyonchobothriumpolypteri (Leydig, 1853) (4 synonyms); and Tetracampos ciliotheca Wedl, 1861 (4 synonyms). In addition, Tetracamposmartinae Kuchta n. sp. is proposed for tapeworms from the catfish Bagrus meridionalis from Lake Malawi. The new speciesdiffers from T. ciliotheca in a much larger body (19 cm versus 3 cm), dorsoventally flattened strobila and numerous (39 versus25–35) and longer apical hooks (up to 98 µm versus less than 50 µm). Kirstenella Kuchta n. gen. is proposed to accommodateSenga gordoni Woodland, 1937 as its type species. The new genus is distinguished from other genera of the Bothriocephalidaeby the presence of an apical disc armed with two lateral semicircles of large hooks, cortical vitelline follicles and large-sizedcirrus-sac. All but one valid species were recollected. Bothriocephalidean cestodes are widely distributed throughout Africa,but only two species, B. acheilognathi and T. ciliotheca, occur in other continents. All but one species (B. acheilognathi)exhibit narrow host specificity, being limited either to one host species (K. gordoni in Heterobranchus bidorsalis and T.martinae in Bagrus meridionalis) or one host genus (I. ichthybori in Ichthyborus spp., P. polypteri in Polypterus spp. and T.ciliotheca in Clarias spp.). Molecular data based on partial sequences of the large subunit rDNA (lsrDNA) show monophyletic position of all African taxa analysed (B. acheilognathi, I. ichthybori, K. gordoni, P. polypteri and T. ciliotheca).

Early Paleozoic Hyolitha from North America: reexamination of Walcott's and Resser's type specimens

1988 ◽  
Vol 62 (2) ◽  
pp. 218-233 ◽  
Author(s):  
John Mark Malinky
Keyword(s):  
North America ◽  
Lower Cambrian ◽  
Type Species ◽  
New Genus ◽  
Early Paleozoic ◽  
Type Specimens ◽  
Middle Cambrian ◽  
Upper Cambrian ◽  
New Family ◽  
The Family

Concepts of the family Hyolithidae Nicholson fide Fisher and the genera Hyolithes Eichwald and Orthotheca Novak have been expanded through time to encompass a variety of morphologically dissimilar shells. The Hyolithidae is here considered to include only those hyolithid species which have a rounded (convex) dorsum; slopes on the dorsum are inflated, and the venter may be flat or slightly inflated. Hyolithes encompasses species which possess a low dorsum and a prominent longitudinal sulcus along each edge of the dorsum; the ligula is short and the apertural rim is flared. The emended concept of Orthotheca includes only those species of orthothecid hyoliths which have a subtriangular transverse outline and longitudinal lirae covering the shell on both dorsum and venter.Eighteen species of Hyolithes and one species of Orthotheca from the Appalachian region and Western Interior were reexamined in light of more modern taxonomic concepts and standards of quality for type material. Reexamination of type specimens of H. similis Walcott from the Lower Cambrian of Newfoundland, H. whitei Resser from the Lower Cambrian of Nevada, H. billingsi Walcott from the Lower Cambrian of Nevada, H. gallatinensis Resser from the Upper Cambrian of Wyoming, and H. partitus Resser from the Middle Cambrian of Alabama indicates that none of these species represents Hyolithes. Hyolithes similis is here included under the new genus Similotheca, in the new family Similothecidae. Hyolithes whitei is designated as the type species of the new genus Nevadotheca, to which H. billingsi may also belong. Hyolithes gallatinensis is referred to Burithes Missarzhevsky with question, and H. partitus may represent Joachimilites Marek. The type or types of H. attenuatus Walcott, H. cecrops Walcott, H. comptus Howell, H. cowanensis Resser, H. curticei Resser, H. idahoensis Resser, H. prolixus Resser, H. resseri Howell, H. shaleri Walcott, H. terranovicus Walcott, and H. wanneri Resser and Howell lack shells and/or other taxonomically important features such as a complete aperture, rendering the diagnoses of these species incomplete. Their names should only be used for the type specimens until better preserved topotypes become available for study. Morphology of the types of H.? corrugatus Walcott and “Orthotheca” sola Resser does not support placement in the Hyolitha; the affinities of these species are uncertain.

scholarly journals Claviplatys henryi, a new genus and species of Plataspidae from southern India (Hemiptera, Heteroptera)

ZooKeys ◽  
2018 ◽  
Vol 796 ◽  
pp. 397-408
Author(s):  
Dávid Rédei ◽  
Zdeněk Jindra
Keyword(s):  
Type Species ◽  
New Genus ◽  
Morphological Characters ◽  
Southern India ◽  
New Genus And Species ◽  
Systematic Relationships

Claviplatysgen. n. and its type species C.henryisp. n. (Hemiptera: Heteroptera: Plataspidae: Plataspinae) are described from Kerala, India. The new genus is related to the Indomalayan genera Heterocrates Amyot & Serville, 1843, Cratoplatys Montandon, 1894, and Cronion Bergroth, 1891, but differs from them and all other plataspid genera by the peculiarly modified antenna. The morphological characters and systematic relationships of the above genera are discussed.

scholarly journals The Unicorn exists! A remarkable new genus and species of Perilissini (Hymenoptera: Ichneumonidae) from South East Asia

2018 ◽  
Vol 58 (2) ◽  
pp. 523-529
Author(s):  
Alexey Reshchikov ◽  
Cornelis Van achterberg
Keyword(s):  
East Asia ◽  
Type Species ◽  
New Genus ◽  
South East Asia ◽  
New Taxon ◽  
New Genus And Species ◽  
Northern Thailand ◽  
Facial Projection

Abstract Gilen gen. nov. (type species G. orientalis sp. nov.) from South East Asia is described and illustrated. The new taxon has a produced mid-longitudinal facial projection, which differentiates it from all other known genera of Ichneumonidae. It belongs to the tribe Perilissini in the subfamily Ctenopelmatinae (Hymenoptera, Ichneumonidae) and is recorded from Laos, Northern Thailand and Vietnam.

scholarly journals A new leafhopper genus Comahadina Huang and Zhang (Hemiptera: Cicadellidae: Typhlocybinae) and a key to genera of Eupteryx-complex

Zootaxa ◽  
2010 ◽  
Vol 2353 (1) ◽  
pp. 65
Author(s):  
MIN HUANG ◽  
YALIN ZHANG
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Hind Wing ◽  
New Genus And Species ◽  
Wing Vein ◽  
Posterior Branch ◽  
Anterior Branch ◽  
A New Species

Leafhoppers of the Eupteryx-complex differ from other members of the tribe Typhlocybini in having the posterior branch of hind wing vein R separate from the anterior branch of M (Young 1952). The complex now includes 9 known genera of which 5 genera, Aguriahana Distant 1918, Eurhadina Haupt 1929, Eupteryx Curtis 1833, Caknesia Dworakowska 1994, Almunisna Dworakowska 1969 and Bellpenna Chiang et al 1989, have been reported from China. Here we propose a new genus Comahadina Huang and Zhang which shares the hind wing character with other genera in the complex, based on a new species, Comahadina angelica Huang and Zhang, here designated as the type-species. The new genus and species are described and illustrated and a key to all genera of the Eupteryx-complex is provided.

scholarly journals Molecular and morphological evidence reveal a new genus and species in Auriculariales from tropical China

MycoKeys ◽  
2018 ◽  
Vol 35 ◽  
pp. 27-39 ◽  
Author(s):  
Hai-Sheng Yuan ◽  
Xu Lu ◽  
Cony Decock
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Type Species ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Strong Support ◽  
Morphological Characteristics ◽  
Morphological Evidence ◽  
New Genus And Species ◽  
Tropical China

Grammatuslabyrinthinusgen. et sp. nov. is proposed based on DNA sequences data and morphological characteristics. It is known so far from southern, tropical China. The new species is characterised by an annual, resupinate basidiocarp with a shallow, subporoid hymenophore, a hymenium restricted to the bottom of the tubes, a dimitic hyphal system, presence of encrusted skeletocystidia and dendrohyphidia, longitudinally septate basidia and smooth, oblong-ellipsoid to cylindrical, acyanophilous basidiospores. Phylogenetic analyses based on ITS + nLSU DNA sequences data indicate that G.labyrinthinus belongs to Auriculariaceae in which it has an isolated position. Phylogenetic inferences show G.labyrinthinus to be related to Heteroradulum. However, the ITS sequences similarity between G.labyrinthinus and H.kmetii, the type species of Heteroradulum, were 89.84% and support the establishment of the new genus. Inversely, Heteroradulumsemis clustered with G.labyrinthinus with strong support and it is transferred to Grammatus.

Platysetosus occultus gen. nov., sp. nov., a new genus and species of mite from Tasmania (Acari: Uropodina)

Zootaxa ◽  
2006 ◽  
Vol 1223 (1) ◽  
pp. 55
Author(s):  
M. DYLEWSKA ◽  
J. BŁOSZYK ◽  
R. B. HALLIDAY
Keyword(s):  
Type Species ◽  
New Genus ◽  
New Genus And Species

A new endemic Australian genus Platysetosus gen. nov. (Acari: Uropodina: Uropodoidea) from Tasmania and its type species Platysetosus occultus sp. nov. are described and figured. Platysetosus is very distinctive, and its relationship to other genera of Uropodina is not clear.

Revision of world Ceroptresini (Hymenoptera: Cynipidae) with the description of a new genus and five new species

Zootaxa ◽  
2019 ◽  
Vol 4685 (1) ◽  
pp. 1-67 ◽  
Author(s):  
IRENE LOBATO-VILA ◽  
JULI PUJADE-VILLAR
Keyword(s):  
New Species ◽  
Type Species ◽  
Morphological Traits ◽  
New Genus ◽  
Taxonomic Revision ◽  
Valid Species ◽  
Distribution Data ◽  
The Status ◽  
The Usa ◽  
First Time

A taxonomic revision of the tribe Ceroptresini (Hymenoptera: Cynipidae) is conducted for the first time. Prior to this study, the total number of valid species of Ceroptres, the only genus within Ceroptresini to date, was 23. As a result of this revision, 15 Ceroptres species are retained as valid and one species, Amblynotus ensiger Walsh, 1864, is desynonymized from Ceroptres petiolicola (Osten-Sacken, 1861), being considered here as a valid Ceroptres species: C. ensiger (Walsh, 1864) status verified and comb. nov. An additional five new species are described from Mexico: Ceroptres junquerasi Lobato-Vila & Pujade-Villar sp. nov.; C. lenis Lobato-Vila & Pujade-Villar sp. nov.; C. mexicanus Lobato-Vila & Pujade-Villar sp. nov.; C. nigricrus Lobato-Vila & Pujade-Villar sp. nov.; C. quadratifacies Lobato-Vila & Pujade-Villar sp. nov., increasing the total number of valid Ceroptres species to 21. Ceroptres masudai Abe, 1997 is synonymized with C. kovalevi Belizin, 1973. Ceroptres niger Fullaway, 1911 is transferred to Andricus (Andricus confusus Lobato-Vila & Pujade-Villar comb. nov. and nom. nov.). Five species (Amblynotus inermis Walsh, 1864; Cynips quercusarbos Fitch, 1859; Cynips querficus Fitch, 1859; Cynips quercuspisum Fitch, 1859; and Cynips quercustuber Fitch, 1859) are not considered as valid Ceroptres. The status of Ceroptres quereicola (Shinji, 1938), previously classified as an unplaced species, is commented on. In addition, a Nearctic species from the USA, Ceroptres politus Ashmead, 1896, is here proposed as the type species of a new genus within Ceroptresini: Buffingtonella Lobato-Vila & Pujade-Villar gen. nov. Redescriptions, biological and distribution data, illustrations and keys to genera and species within Ceroptresini are provided. The diagnostic morphological traits of Ceroptresini, Ceroptres and the new genus are discussed. 

Diversity of Edwardsiidae sea anemones (Cnidaria: Anthozoa: Actiniaria) from Brazil, with the description of a new genus and species

2019 ◽  
Vol 99 (5) ◽  
pp. 1087-1098 ◽  
Author(s):  
Rafael Antônio Brandão ◽  
Luciana Câmara Gusmão ◽  
Paula Braga Gomes
Keyword(s):  
New Genus ◽  
South Atlantic ◽  
Valid Species ◽  
Nematostella Vectensis ◽  
Soft Bottom ◽  
Sea Anemones ◽  
New Genus And Species ◽  
Western Atlantic ◽  
Low Diversity ◽  
The 1960S

AbstractEdwardsiidae is one of the most speciose families within order Actiniaria with ~75 valid species of burrowing sea anemones. Five edwardsiids have been recorded in South Atlantic waters with only two species known for Brazil:Nematostella vectensisandEdwardsia migottoi. Such low diversity is probably the result of a historical small number of specialists in the region combined with difficulties in collecting and identifying these small burrowing animals. Although edwardsiids have been reported from Brazil since at least the 1960s, these reports did not include proper descriptions or specific identification, making comparison to other valid species impossible. Here we describe a new genus,Isoscolanthusgen. nov., and two new species:Isoscolanthus iemanjaesp. nov.,Isoscolanthus janainaesp. nov. and we also describeScolanthus crypticussp. nov., the first species of the genus for Brazil.Isoscolanthusgen. nov. is easily distinguished from other edwardsiid genera by a combination of external (i.e. presence of periderm and nemathybomes in proximal end and 12 tentacles), microanatomical (i.e. four microcnemes) and cnidom features (i.e. pterotrichs in nemathybomes). In addition to the description of the new genus and species, we expand the range distribution ofNematostella vectensisandEdwardsia migottoiin the South-western Atlantic. The number of edwardsiids known from Brazil is raised from two to five species, substantially increasing the diversity of soft-bottom sea anemones for South Atlantic waters.

A new genus of ichthyosaur from the Late Triassic Pardonet Formation of British Columbia: bridging the Triassic Jurassic gap

2001 ◽  
Vol 38 (6) ◽  
pp. 983-1002 ◽  
Author(s):  
Elizabeth L Nicholls ◽  
Makoto Manabe
Keyword(s):  
British Columbia ◽  
Type Species ◽  
New Genus ◽  
Late Triassic ◽  
Unique Combination ◽  
Type Specimens ◽  
Nomen Dubium ◽  
The Family ◽  
Large Diamond

Both the genus Shastasaurus and the family Shastasauridae have long been hard to define due to the fragmentary nature of the type specimens. Consequently, recent interpretations of the genus have been based almost entirely on Shastasaurus neoscapularis from the Late Triassic Pardonet Formation of British Columbia. Two new specimens of this taxon, from Pink Mountain, British Columbia, demonstrate that it does not belong in the genus Shastasaurus. This paper describes the new specimens, and refers the species to Metashastasaurus gen nov. Post-cranially, the skeleton of Metashastasaurus resembles that of shastasaurids, differing primarily only in the shape of the scapula and fibula. However, the skull has a unique combination of characters, including large diamond-shaped frontals that enter the supratemporal fenestrae, and very narrow posterior extensions of the nasals, which contact the postfrontals. It also differs from the skull of Shastasaurus in the presence of both a parietal ridge and postparietal shelf. This is a combination of derived characters previously known only in Jurassic forms. The front limb has four proximal carpals and four digits, indicating that previous reconstructions were based on incomplete material. Shastasaurus pacificus Merriam 1895, the type species of the genus Shastasaurus, must be considered a nomen dubium, making the genus Shastasaurus invalid. Until this problem is clarified, the use of the generic name Shastasaurus should be restricted to Merriam's type specimens, of which only Shastasaurus alexandrae and Shastasaurus osmonti are based on adequate material.

Sign in / Sign up

Export Citation Format

Share Document