scholarly journals The family Carditidae (Bivalvia) in the early Danian of Patagonia (Argentina)

2017 ◽  
Vol 91 (6) ◽  
pp. 1148-1165 ◽  
Author(s):  
Damián E. Pérez ◽  
Claudia J. del Río
Keyword(s):  
New Species ◽  
South America ◽  
North American ◽  
New Genus ◽  
Paris Basin ◽  
Systematic Analysis ◽  
Rio Negro ◽  
The Family ◽  
Ancient Record

AbstractThe first systematic analysis of the Danian carditids of Patagonia is presented, which includes four genera—one new genus and the first records of three other genera in South America. They consist of Claibornicardia paleopatagonica (Ihering, 1903), a widely distributed species occuring in the Jagüel, Roca and Salamanca formations (Neuquén, Río Negro and Chubut Provinces); Rotundicardia Heaslip, 1968, represented by the new species R. mariobrosorum n. sp., which is restricted to the Roca Formation (Río Negro Province); Cardites feruglioi (Petersen, 1846) (Roca and Lefipán formations, Río Negro and Chubut Provinces); and by Kalelia new genus, which includes K. burmeisteri (Böhm, 1903) from the Salamanca and Roca formations (Río Negro and Chubut Provinces), which is related to the Paris Basin species K. multicostata (Lamarck, 1806) n. comb. and K. pectuncularis (Lamarck, 1806) n. comb. ‘Venericardia’ iheringi (Böhm, 1903), a species known only from internal molds, is described and regarded as a carditid with uncertain affinities. The presence of Claibornicardia, Rotundicardia, and Cardites in Patagonia constitutes the most ancient record of these genera and confirms biogeographical connections previously established between the Danian Argentinian and North American/European fossil faunas.

Parakari a New Genus of the Family Baetidae (Insecta: Ephemeroptera) from Guyana Highlands

Zootaxa ◽  
2011 ◽  
Vol 3032 (1) ◽  
pp. 47 ◽  
Author(s):  
CAROLINA NIETO ◽  
TOMÁŠ DERKA
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
The Other ◽  
Obtuse Angle ◽  
Diverse Families ◽  
The Family ◽  
Two New Species ◽  
High Level ◽  
Table Mountains

Baetidae is one of the most diverse families of Ephemeroptera. In South America this family now encompasses 27 genera and more than 130 species. The Guyana region is known for its extraordinary diversity and high level of endemism, which is, above all, remarkable at the tops of the isolated flat-topped table mountains – tepuis. Recently various international speleological expeditions to Churí-tepui explored the cave systems of this mountain. Here we describe a new genus of Baetidae recently found during the mentioned expeditions to Churí-tepui and Auyán-tepui. Parakari n. gen. can be distinguish from the other genera of this family, among other characters, in the nymphs by the absence of abdominal gills I, tarsal claws with subapical denticle larger than the others, right mandible with prostheca bifid and pectinate and with incisors positioned in obtuse angle to mola area, lingua with a tuft of setae, segment II of maxillary palpi with a concavity and a hole apically and segment II of labial palpi with a strong distomedial projection. In the adults the hind wings are absent and genitalia with segment II of forceps with a constriction, segment III elongate and long. Two new species are included in this genus; each one was collected at different tepui. A key and illustrations are included.

Additions and Revisions to the Genera of North American Caddisflies of the Family Brachycentridae With Special Reference to the Larval Stages (Trichoptera)

1965 ◽  
Vol 97 (10) ◽  
pp. 1089-1106 ◽  
Author(s):  
Glenn B. Wiggins
Keyword(s):  
New Species ◽  
North American ◽  
Larval Stage ◽  
New Genus ◽  
New Genera ◽  
Larval Morphology ◽  
Larval Stages ◽  
The North ◽  
The Family ◽  
A New Species

AbstractLarval characterizations for the genera of North American Brachycentridae are revised and two new genera created, bringing to five the total number now recognized on this continent. Previous concepts of larval morphology inMicrasemaare emended. Discovery of the larval stage ofBrachycentrus(Amiocentrus)aspilusRoss necessitates elevation of this subgenus to generic status. Association of larvae with the two North American species placed inOligoplectrumnecessitates removal of one,O.dimicki(Milne), toMicrasema. Discovery of all stages of a new species on Mount Hood, Oregon, necessitates creation of a new genus. A provisional larval key to the genera of the North American Brachycentridae is proposed and the phylogenetic relationships of the genera are discussed. Validity of the Asian genusOligoplectrodesis questioned.

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 FOSSIL IRONOMYIID FLY FROM CANADIAN AMBER (DIPTERA: IRONOMYIIDAE)

1973 ◽  
Vol 105 (1) ◽  
pp. 105-111 ◽  
Author(s):  
J. F. McAlpine
Keyword(s):  
New Species ◽  
North America ◽  
South America ◽  
Late Jurassic ◽  
New Genus ◽  
Fossil Species ◽  
Australian Species ◽  
The Family ◽  
Living Species ◽  
Cretaceous Period

AbstractCretonomyia pristina new genus and new species, a fossil fly in amber from Cedar Lake, Manitoba, is described and assigned to the Ironomyiidae. This fossil establishes that the family, heretofore known from a single Australian species, Ironomyia nigromaculata White, existed during Mesozoic times in North America. Comparison of the extinct species with the living species shows that the family appeared little different 73 million years ago than it does today. In points of difference, the fossil species usually shows the more primitive conditions. It is postulated that the family arose in North America in late Jurassic – early Cretaceous times, dispersed to South America late in the Cretaceous Period and thence to Australia via Antarctica while the latter three were contiguous — 43 million years ago.

A New Early Danian Gastropod Assemblage From Northern Patagonia, Río Negro Province, Argentina

2012 ◽  
Vol 86 (6) ◽  
pp. 1002-1016 ◽  
Author(s):  
Claudia Julia del Rio
Keyword(s):  
New Species ◽  
New Zealand ◽  
South America ◽  
New Record ◽  
New Genus ◽  
Southern South America ◽  
Northern Patagonia ◽  
Rio Negro ◽  
Endemic Genera ◽  
Eleven Species

A new early Danian gastropod assemblage contained in the Roca Formation of Río Negro Province was analyzed. Eleven species are described and illustrated, the new genus Rocalaria is created, and six new species are recognized: Gyroscala daniana, Heteroterma carmeloi, Microfulgur concheyroae, Sulcobuccinum prominentum, Cidarina lenzaniyeuensis, and Rocalaria alani. The present research includes the first mention of Sulcobuccinum d'Orbigny, 1850, Priscoficus Conrad, 1866, Cavoscala Whitfield, 1892, Microfulgur Finlay and Marwick, 1937, and Cidarina Dall, 1909, for the Danian of Southern South America; the new record of Austrophaera Furque and Camacho, 1949, Fusinus Rafinesque, 1815 and Heteroterma Gabb, 1869 in northern Patagonia; and the oldest Paleogene record for the genus Gyroscala de Boury, 1887. The presence of the study assemblage in northern Patagonia indicates a more complex paleobiogeographic pattern for the area than previously thought, as shown by the record of endemic genera, cosmopolitan taxa, elements with Tethyan/ Indo-Pacific affinities, and genera related with “Wangaloan” faunas of the Paleocene of New Zealand.

scholarly journals The earliest fossil record of the poorly known family Condylocardiidae from Argentina

2019 ◽  
Vol 46 (2) ◽  
pp. 433
Author(s):  
Damián Pérez
Keyword(s):  
New Species ◽  
South America ◽  
Fossil Record ◽  
Marine Terrace ◽  
Santa Cruz ◽  
Early Pliocene ◽  
The Poor ◽  
The Family ◽  
Hinge Plate ◽  
Ancient Record

The scarcely known family Condylocardiidae (Bivalvia: Archiheterodonta) is poorly represented in the fossil record and their living representatives are also poorly known. This work presents a new representative of the family from the early Pliocene of marine terrace of Cerro Laciar (Santa Cruz Province). Carditella pitufina sp. nov. is described and characterized by a shell large for the genus, 15 radial ribs as wide as interspaces, high hinge plate and broad and large hinge teeth. The poor record of the family may be due to an identification bias, probably because the tiny size of specimens and its similarity with carditids. This new species resembles to the living Carditella tegulata from southern Argentina and Chile and they could be closely related. Carditella pitufina sp. nov. represents the most ancient record of Carditella in South America and the most ancient record of Condylocardiidae in Argentina.

scholarly journals Urticaceae-feeders from the family Tischeriidae: descriptions of two new species and new genus Paratischeria gen. nov.

Biologija ◽  
2017 ◽  
Vol 63 (1) ◽  
Author(s):  
Jonas R. Stonis ◽  
Arūnas Diškus ◽  
Brigita Paulavičiūtė ◽  
Alex K. Monro
Keyword(s):  
New Species ◽  
South America ◽  
New Genus ◽  
Species Group ◽  
The Andes ◽  
The Family ◽  
Two New Species

We describe a  new genus Paratischeria Diškus & Stonis, gen. nov. and present the first observations of Urticaceae-feeding Tischeriidae species in South America and two new Urticaceaefeeding species (Paratischeria fasciata sp. nov. and P. ferruginea Diškus & Stonis, sp. nov. from the Andes of Bolivia and Ecuador). Together with the  African P. urticicolella (Ghesquière) (comb. nov.) from Congo, they are attributed to the newly designated ferruginea species group.

A new acaremyid rodent (Hystricognathi: Octodontoidea) from the middle Miocene of Patagonia (South America) and considerations on the early evolution of Octodontoidea

Zootaxa ◽  
2013 ◽  
Vol 3616 (2) ◽  
pp. 119-134 ◽  
Author(s):  
MICHELLE ARNAL ◽  
MARÍA E. PÉREZ
Keyword(s):  
New Species ◽  
South America ◽  
Middle Miocene ◽  
Phylogenetic Analyses ◽  
Early Evolution ◽  
Systematic Analysis ◽  
Late Middle Miocene ◽  
The Family ◽  
Caviomorph Rodents ◽  
A New Species

Octodontoidea is the most speciose and ecologically diverse superfamily of caviomorph rodents. The systematic relation-ships of modern octodontoids is moderately accepted, however, the relationships of fossils (from the Eocene?–middle Miocene) are not clear. In recent years the hypothesis of a complex early evolution of the superfamily has emerged, with “basal octodontoids” representing different evolutionary lineages. The extinct family Acaremyidae may represent one such lineage, consisting of the genera Acaremys, Sciamys, Galileomys, and variably Platypittamys. In this work we de-scribe a new octodontoid rodent recorded in post-Colloncuran? levels exposed at the locality of El Petiso, Northwest of Chubut Province, Argentina. Based on a systematic analysis of dental characters, we conclude that the new specimens correspond to a new species of Sciamys. Additionally, if the post-Colloncuran age for El Petiso is verified, the new species will extend the temporal range of the family Acaremyidae until, at least, the late middle Miocene, as well as the temporal range for the genus Sciamys from the Santacrucian SALMA. Our phylogenetic analyses corroborate the position of the new species as a member of Sciamys, and confirm that Acaremyidae represents an extinct family from Patagonian South America that lived until the middle Miocene. Massoiamys obliquus qualifies as morphological ancestor that pre-announc-es the octodontiform tooth pattern of octodontids. Thus, the octodontiform tooth pattern appears at least twice within the superfamily Octodontoidea.

Cryptofavognathus, a new genus of the family Cryptognathidae Oudemans (Acari: Raphignathoidea), with the description of a new species from Turkey

Zootaxa ◽  
2010 ◽  
Vol 2533 (1) ◽  
pp. 36 ◽  
Author(s):  
SALİH DOĞAN ◽  
GÜLDEM DÖNEL
Keyword(s):  
New Species ◽  
Adult Female ◽  
New Genus ◽  
The Family ◽  
A New Species

A new genus, Cryptofavognathus is proposed for two species, Cryptofavognathus afyonensis (Koç & Akyol, 2004) comb. nov. and C. anatolicus sp. nov. The adult female and male of C. anatolicus sp. nov. collected from moss and a bird’s nest are herein described and figured.

NORTH AMERICAN WATER MITES OF THE FAMILY MOMONIIDAE VIETS (ACARI: ARRENUROIDEA). IV. REVISION OF SPECIES OF STYGOMOMONIA (SENSU STRICTO) SZALAY, 1943

1991 ◽  
Vol 123 (3) ◽  
pp. 501-558 ◽  
Author(s):  
Ian M. Smith
Keyword(s):  
New Species ◽  
North American ◽  
Sensu Stricto ◽  
North American Species ◽  
Water Mites ◽  
Dispersal Patterns ◽  
The Family ◽  
Three New Species ◽  
New Diagnosis ◽  
First Time

AbstractMorphological, life history, and distributional data are presented for North American species of the subgenus Stygomomonia (sensu stricto) Szalay, 1943. Adults of the seven previously recognized species are redescribed, and deutonymphs of five of these species are described for the first time. Two species, S. (s.s.) neomexicana Cook and S. (s.s.) occidentalis Cook are substantially revised on the basis of an examination of the types and extensive series of newly collected specimens. Three new species are described, S. (s.s.) californiensis on the basis of deutonymphs and adults, and S. (s.s.) imamurai and S. (s.s.) cooki on the basis of adults. A new diagnosis of the subgenus is proposed and discussed, the relationships of the various species are discussed, and a key to deutonymphs and adults of North American species is presented. New distributional data are presented for all species, and dispersal patterns from Pleistocene refugia are discussed.

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