• References (12)
  • Citations (0)
Published on Mar 1, 2014in Cretaceous Research 1.93
Wiesław Krzemiński10
Estimated H-index: 10
(Polish Academy of Sciences),
Iwona Kania6
Estimated H-index: 6
Dany Azar18
Estimated H-index: 18
(Lebanese University)
Helius ewa sp. nov., one of the oldest representative of the genus Helius Lepeletier and Serville 1828 (Diptera: Limoniidae) from the Lebanese amber (Lower Cretaceous) is characterized, illustrated and described. The evidences of rapid evolution of the genus Helius are provided. The hypothesis on the origin of the evolution of this genus in Gondwana and the possibility of rapid radiation and expansion in Laurasia are discussed. A complete list of Cretaceous limoniids belonging to Helius is given...
7 Citations Source Cite
Published on Jan 1, 2015in Cretaceous Research 1.93
Eduardo Barrón17
Estimated H-index: 17
(Instituto Geológico y Minero de España),
Daniel Peyrot8
Estimated H-index: 8
+ 5 AuthorsMª José Comas-Rengifo1
Estimated H-index: 1
(Complutense University of Madrid)
Abstract The Lower Cretaceous deposits of the southern margin of the Basque-Cantabrian basin (northern Spain) are characterised by continental deposits interbedded with amber-bearing marine-influenced facies. These facies crop out in various localities and have yielded well-preserved palynological assemblages. The palynoflora is dominated by gymnosperm pollen grains, and shows relatively diversified spore content but scarce dinoflagellate cysts. The palynofloral evidence and regional geological ...
34 Citations Source Cite
Published on Jan 1, 2008in Invertebrate Systematics 1.65
Guilherme Cunha Ribeiro7
Estimated H-index: 7
Tipulomorpha (crane flies) comprise one of the largest subgroups of Diptera, but its phylogeny at different levels has been poorly explored. This study presents the most comprehensive cladistic analysis of the group ever made, with emphasis on the genera and subgenera of the subfamily Limnophilinae (Limoniidae), assumed to include some of the earliest lineages of Tipulomorpha sensu stricto and therefore important for the understanding of the early patterns in the evolution of the crane flies. Ei...
27 Citations Source Cite
Published on Jan 1, 2013in Insect Systematics & Evolution 0.76
Caroline Greve3
Estimated H-index: 3
(Universidade Federal do Rio Grande do Sul),
Cristiano Feldens Schwertner2
Estimated H-index: 2
(University of São Paulo),
Jocelia Grazia11
Estimated H-index: 11
(Universidade Federal do Rio Grande do Sul)
The present work brings together the dispersed information on the Neotropical genus Chloropepla. It was established in 1867 by Stal and reviewed in 1968 by Grazia; since the revision, ten new species have been added. In this work a cladistic analysis of the species of Chloropepla is presented. The monophyly of the genus was confirmed. Three monophyletic groups of species were identified: clade A (C. rideri sp.n., C. paveli, C. vigens, C. luteipennis), clade B (C. costaricensis sp.n., C. aurea an...
9 Citations Source Cite
Published on Jun 10, 2014in Zootaxa 0.93
Iwona Kania6
Estimated H-index: 6
A revision of the genus Helius Lepeletier & Serville, 1828 (Diptera: Limoniidae) from Baltic amber (Eocene) is presented. Redescriptions of 5 species, Helius formosus Krzeminski, 1993, Helius linus Podenas, 2002, Helius minutus (Loew, 1850), Helius mutus Podenas, 2002, Helius pulcher (Loew, 1850) of this genus from Baltic amber are given and documented by photographs and drawings. Four new species of the genus Helius from Baltic amber are described: Helius gedanicus sp. nov., Helius hoffeinsorum...
3 Citations Source Cite
Published on Jul 1, 2010in Systematic Entomology 4.24
Matthew J. Petersen6
Estimated H-index: 6
(Iowa State University),
Matthew A. Bertone12
Estimated H-index: 12
(North Carolina State University)
+ 1 AuthorsGregory W. Courtney12
Estimated H-index: 12
(Iowa State University)
Tipuloidea, the crane flies, are a diverse lineage of true flies (Insecta: Diptera) whose phylogenetic classification and taxonomy remain a challenge. Here we present the results of a quantitative phylogenetic analysis of Tipuloidea based on combined morphological characters (adult, larvae and pupae) and nuclear gene sequence data (28S rDNA and CAD). Forty-five species, from 44 genera and subgenera, were sampled, representing the four putative families of Tipuloidea (Cylindrotomidae, Limoniidae,...
33 Citations Source Cite
Published on Aug 1, 1990in Zoological Journal of the Linnean Society 2.69
R. J. Rayner1
Estimated H-index: 1
(University of the Witwatersrand),
S. B. Waters1
Estimated H-index: 1
(University of the Witwatersrand)
A new fossil species of crane-fly, Helius botswanensis:Diptera: Tipulidaey is described. The specimen was discovered recently in reliably dated. Cretaceous sediments from Botswana. Ii is extremely well preserved, has a distinctive morphology, and is identified as belonging to the extant genus Helius. The single specimen puts the origin of the subfamily Limoniinae and the genus well into the Cretaceous Period, and provides data on the southern African Cretaceous palaeoenvironment. The conservativ...
17 Citations Source Cite
Published on Mar 1, 2016in Organic Geochemistry 2.81
César Menor-Salván2
Estimated H-index: 2
(Georgia Institute of Technology),
Bernd R.T. Simoneit82
Estimated H-index: 82
(Oregon State University)
+ 1 AuthorsJesús Alonso1
Estimated H-index: 1
Abstract One of the major components of the organic solvent extractable fraction of Cretaceous ambers is 1,6-dimethyl-5-isopentyltetralin, a compound that has been incorrectly or not identified in previous reports on the molecular composition of Cretaceous ambers. Here, the purification and structural identification of 1,6-dimethyl-5-isopentyltetralin is reported from amber samples of the Cretaceous Penacerrada II deposit at Penacerrada, Alava (Basque-Cantabrian Basin, Spain). The structural ide...
5 Citations Source Cite
Published on Aug 1, 2016in Cretaceous Research 1.93
Iwona Kania6
Estimated H-index: 6
Wiesław Krzemiński10
Estimated H-index: 10
(Polish Academy of Sciences),
Antonio Arillo14
Estimated H-index: 14
(Complutense University of Madrid)
Abstract Helius alavensis sp. nov., one of the oldest representative of the genus Helius Lepeletier and Serville, 1828 (Diptera: Limoniidae), is described from the Alava amber (Lower Cretaceous, upper Albian), northern Spain. This is the first representative of the subfamily Limoniinae and of the genus Helius described from this fossil resin.
1 Citations Source Cite
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