scholarly journals A new genus of pipimorph frog (Anura) from the Early Cretaceous Crato Formation (Aptian) and the evolution of South American tongueless frogs

2019 ◽  
Vol 92 ◽  
pp. 222-233 ◽  
Author(s):  
Ismar Souza Carvalho ◽  
Federico Agnolin ◽  
Mauro A. Aranciaga Rolando ◽  
Fernando E. Novas ◽  
José Xavier-Neto ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
New Genus ◽  
South American

scholarly journals The first South American sandownid turtle from the Lower Cretaceous of Colombia

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1431 ◽  
Author(s):  
Edwin Cadena
Keyword(s):  
Early Cretaceous ◽  
New Genus ◽  
First Record ◽  
South American ◽  
Skull Morphology ◽  
Shallow Marine ◽  
Marine Turtles ◽  
Lower Jaw ◽  
Lower Aptian ◽  
Glen Rose Formation

Sandownids are a group of Early Cretaceous-Paleocene turtles that for several decades have been only known by cranial and very fragmentary postcranial elements. Here I report and describe the most complete sandownid turtle known so far, including articulated skull, lower jaw and postcranial elements, from the Early Cretaceous (upper Barremian-lower Aptian, >120 Ma), Paja Formation, Villa de Leyva town, Colombia. The new Colombian sandownid is defined here asLeyvachelys cipadinew genus, new species and because of its almost identical skull morphology with a previously reported turtle from the Glen Rose Formation, Texas, USA, both are grouped in a single and officially (ICNZ rules) defined taxon. Phylogenetic analysis includingL. cipadisupports once again the monophyly of Sandownidae, as belonging to the large and recently redefined Pan-Chelonioidea clade. The morphology ofL. cipadiindicates that sandownids were not open marine turtles, but instead littoral to shallow marine durophagous dwellers.Leyvachelys cipadinot only constitutes the first record of sandowinds in South America, but also the earliest global record for the group.

Cnidochloa: A New Genus of Grasses from Brazil (Poaceae: Panicoideae: Paniceae)

2020 ◽  
Vol 105 (2) ◽  
pp. 183-194
Author(s):  
Fernando O. Zuloaga ◽  
Sandra S. Aliscioni ◽  
M. Amalia Scataglini
Keyword(s):  
New Genus ◽  
Phylogenetic Position ◽  
South American ◽  
The South ◽  
South American Species ◽  
Molecular Characters

Generic boundaries of the South American species Panicum longipedicellatum Swallen are explored and compared with allied genera of the tribe Paniceae. On the basis of morphological, anatomical, and molecular characters a new genus, Cnidochloa Zuloaga, is proposed. The phylogenetic position of the new genus within the Paniceae is evaluated.

Rediscovery of Choroterpes atramentum in Costa Rica, type species of Tikuna new genus (Ephemeroptera: Leptophlebiidae: Atalophlebiinae), and its role in the "Great American Inter-change"

Zootaxa ◽  
2005 ◽  
Vol 932 (1) ◽  
pp. 1 ◽  
Author(s):  
HARRY M. SAVAGE ◽  
R. WILLS FLOWERS ◽  
WENDY PORRAS V.
Keyword(s):  
Costa Rica ◽  
Central America ◽  
Late Cretaceous ◽  
Type Species ◽  
New Genus ◽  
South American ◽  
Early Tertiary ◽  
Geological Formation

A new genus, Tikuna, is described based on recent collections of adults and nymphs of Choroterpes atramentum Traver from western Costa Rica. All recent collections are from streams on or near the Nicoya Complex, the oldest geological formation in Lower Central America. Tikuna belongs to a lineage of South American Atalophlebiinae (Leptophlebiidae: Ephemeroptera) whose origin is hypothesized to have been in the late Cretaceous–early Tertiary. Some implications of the distribution of Tikuna for theories on the origin of Costa Rica’s biota are discussed.

A new genus and species of groundwater isopod of the family Protojaniridae (Isopoda: Asellota: Gnathostenetroidoidea) from southern Chile

Zootaxa ◽  
2021 ◽  
Vol 4966 (5) ◽  
pp. 550-562
Author(s):  
JORGE PÉREZ-SCHULTHEISS ◽  
GEORGE D. F. WILSON
Keyword(s):  
New Genus ◽  
South American ◽  
New Taxon ◽  
Southern Chile ◽  
New Genus And Species ◽  
The Third ◽  
The Family ◽  
Apical Lobe ◽  
Antennal Scale ◽  
Freshwater Springs

A new asellotan isopod of the family Protojaniridae Fresi, Idato & Scipione, 1980 is described from freshwater springs in the Osorno province, Los Lagos region, southern Chile. Wiyufiloides osornoensis gen. & sp. n. is the third South American protojanirid species and the first known groundwater isopod in Chile. The new genus and species is principally characterized by the presence of a vestigial antennal scale, a strongly subchelate pereiopod I and the absence of an apical lobe on the protopod of pleopod II. The new taxon is described in detail and figures are given. 

A remarkable new genus and species of the planktonic shrimp family Luciferidae (Crustacea, Decapoda) from the Cretaceous (Aptian/Albian) of the Araripe Sedimentary Basin, Brazil

2018 ◽  
Vol 92 (3) ◽  
pp. 459-465 ◽  
Author(s):  
Antônio Álamo Feitosa Saraiva ◽  
Allysson Pontes Pinheiro ◽  
William Santana
Keyword(s):  
Early Cretaceous ◽  
New Genus ◽  
Sedimentary Basin ◽  
Northeastern Brazil ◽  
New Genus And Species ◽  
Calcareous Shale ◽  
The Family

AbstractA new genus and species of the planktonic shrimp family Luciferidae,Sume marcosin. gen. n. sp., is described and illustrated from material collected in calcareous shale of the late Early Cretaceous (Aptian–Albian) Romualdo Formation, Araripe Basin, northeastern Brazil. The material is very well preserved, including the antennae, stalked eyes, second and third maxillipeds, pleopods, and uropods, and represents the first described fossil of the family Luciferidae.UUID:http://zoobank.org/fdf825b8-6fe9-42ae-8fc7-73c220eec03a

A new assemblage of Early Cretaceous green lacewings (Chrysopidae: Neuroptera) from Transbaikalia

2016 ◽  
Vol 107 (2-3) ◽  
pp. 195-202 ◽  
Author(s):  
Alexander V. Khramov
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Lower Cretaceous ◽  
New Genus ◽  
Green Lacewings

ABSTRACTOne new genus and four new species of Chrysopidae are described from the Lower Cretaceous of Khasurty, Transbailakia (Russia):Mesypochrysa cannabinasp. nov.;M. naranicasp. nov.;Aberrantochrysa buryaticagen. & sp. nov.; andA. pulchellagen. & sp. nov. The abundance of Chrysopidae in Mesozoic localities is discussed.

A new genus of Scolebythidae (Hymenoptera: Chrysidoidea) from the Early Cretaceous of China

Zootaxa ◽  
2012 ◽  
Vol 3504 (1) ◽  
pp. 56 ◽  
Author(s):  
YAPING CAI ◽  
YUNYUN ZHAO ◽  
CHUNGKUN SHIH ◽  
DONG REN
Keyword(s):  
New Species ◽  
Early Cretaceous ◽  
Type Species ◽  
New Genus ◽  
Northeastern China ◽  
Yixian Formation ◽  
Liaoning Province ◽  
Comprehensive Understanding ◽  
The Family ◽  
Two New Species

A new genus Mirabythus Cai, Shih et Ren, gen. nov. (type species, M. lechrius Cai, Shih et Ren, sp. nov.) and M. liae Cai, Shih et Ren, sp. nov. from the family Scolebythidae are described from the Early Cretaceous Yixian Formation of Huangbanjigou Village, Liaoning Province, northeastern China. These findings extend the existence of Scolebythidae to the Early Cretaceous of China, while providing evidence to support Engel and Grimaldi’s hypothesis that the family was widely distributed throughout the Cretaceous. Our two new species with clear venation also provide a comprehensive understanding of the venational changes from the Early Cretaceous to now. A key to the fossil and extant genera of Scolebythidae is provided.

New record of Tettigarctidae (Insecta, Hemiptera, Cicadoidea) from the Lower Cretaceous of Brazil

Zootaxa ◽  
2005 ◽  
Vol 1087 (1) ◽  
pp. 53 ◽  
Author(s):  
FEDERICA MENON
Keyword(s):  
Southern Hemisphere ◽  
Early Cretaceous ◽  
Lower Cretaceous ◽  
New Record ◽  
New Genus ◽  
New Genus And Species ◽  
New Discovery

Tettagalma striata, new genus and species of Tettigarctidae (Hemiptera: Cicadoidea), is described from the Lower Cretaceous laminated limestones of the Crato Formation, Brazil. The new discovery represents the first certain record of this family in Brazil and confirms its presence in the Southern Hemisphere during the early Cretaceous. Architettix Hamilton, 1990, from the same formation, and all the taxa originally placed in Cicadoprosbolidae, are also included in Tettigarctidae, as the former is considered a synonym.

Systematics of reptile-associated scale mites of the genus Pterygosoma (Acariformes: Pterygosomatidae) derived from external morphology

Zootaxa ◽  
2019 ◽  
Vol 4603 (3) ◽  
pp. 401
Author(s):  
MONIKA FAJFER
Keyword(s):  
North Africa ◽  
New Genus ◽  
Arabian Peninsula ◽  
Morphological Characters ◽  
Mite Species ◽  
South American ◽  
The Family ◽  
Outgroup Species ◽  
Tree Lizards ◽  
Species Groups

The phylogeny of the mite genus Pterygosoma Peters, 1849 (Acariformes: Pterygosomatidae), permanent parasites of lizards of the families Agamidae, Gerrhosauridae and Liolaemidae (Reptilia: Squamata), was inferred with maximum parsimony, successive weighting and implied weighting approaches based on 182 characters of 48 ingroup and 12 outgroup species. All undertaken analyses questioned the monophyly of the genus. Based on this research, Pterygosoma includes 56 mite species associated with agamas from Africa and Asia (Sauria: Agamidae). Within the genus seven natural species groups were found: mutabilis, inermis, melanum, caucasica, fimbriata, singularis and foliosetis; 13 species of the genus were not assigned to any of the groups due to their unique morphological characters. For the ligare group of the subgenus Pterygosoma s. str. (7 species) associated with the South American tree lizards from the family Liolaemidae, a new genus, Neopterygosoma gen. nov., is established. The subgenus Gerrhosaurobia Lawrence, 1959 (3 species) associated with the African plated lizards of the family Gerrhosauridae is elevated to the genus rank. Diagnoses for the three genera are presented. Historical associations are reconstructed by fitting the obtained mite tree into the host topology on the family level. Results of coevolutionary analysis highlight the coincidence of both trees. The studies suggest that the ancestor of the genus Pterygosoma switched from the hosts of Gerrhosaurobia i.e. from the plated lizards (Gerrhosauridae) to the agamas (Agamidae), and the genus Pterygosoma has its biogeographic origin in North Africa, and colonized Asia via the Arabian Peninsula, which is congruent with the historical biogeography of its hosts.

scholarly journals Zoropelecinus zigrasi, a pelecinid wasp in mid-Cretaceous amber from Myanmar (Hymenoptera: Pelecinidae)

2013 ◽  
pp. 1
Author(s):  
Michael S. Engel ◽  
David A. Grimaldi ◽  
Jaime Ortega-Blanco
Keyword(s):  
New Jersey ◽  
Early Cretaceous ◽  
Late Cretaceous ◽  
New Genus ◽  
New Genus And Species ◽  
The Baltic ◽  
New Synonymy ◽  
First Time

The proctotrupoid wasp family Pelecinidae (Proctotrupomorpha: Proctotrupoidea) is recorded in Early Cretaceous amber for the first time, previous amber inclusions being from the Late Cretaceous or Tertiary. Zoropelecinus zigrasi Engel & Grimaldi, new genus and species, is described and figured from an exquisitely preserved female in Albian-Cenomanian amber from Myanmar. The genus is similar to other fossil pelecinids of the genera Pelecinopteron Brues (Paleogene ambers of the Baltic and Siberia) and Henopelecinus Engel & Grimaldi (Turonian amber, New Jersey). Although two subfamilies have at times been recognized (or even as two families) the Iscopininae are clearly paraphyletic with respect to Pelecininae and therefore of no classificatory value and accordingly synonymized herein (new synonymy).

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