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Molecular analysis resolves the taxonomy of the Laurencia complex (Rhodomelaceae, Ceramiales) in Bermuda and uncovers novel species of Chondrophycus and Laurenciella
Cryptogamie, Algologie 43 (1)
In the last decade, molecular tools have revealed a significant number of previously unrecognized taxa in Bermuda’s marine flora, especially among the Rhodophyta. A number of species have been persistently misidentified based on morphological similarities to species described from other localities. Some have been assigned to existing taxa not previously reported for the islands, and many have been determined to be novel species. Of late, researchers have substantially modified the ‘Laurencia complex’ in several regions around the globe.
Mise en forme et contrôle qualité de données, l’informatique au service de l’écologie
Naturae 2022 (2)
In many scientific disciplines, experimental studies or field monitoring ensure the data collection. The data is stored on raw files with an intuitive format, easily entered by the experimenter. However, this raw format is rarely directly compatible with the analysis of the collected data and the data may be erroneous; it is then necessary to carry out a formatting and quality control. Faced with the increasing number of ever more massive raw data sets, the discipline of digital for life sciences has developed. Computer programming represents a precious help for modellers since it allows the automation of data formatting and data cleaning. The data formatting makes it possible to obtain a format that will be directly used in the analyses.
A new variety of Merendera Ramond (Liliaceae): M. montana var. paucitepala var. nov., from south-eastern Spain
Adansonia 44 (2)
Merendera montana var. paucitepala var. nov. is described as a new variety from south-eastern Spain. Fieldwork observations and morphological characters are given. A key to the genus for the Iberian Peninsula and chorological and habitat comments are also provided.
Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil
Cryptogamie, Mycologie 43 (1)
During surveys in the Brazilian Amazon, Atlantic Forest and Caatinga, several species of poroid Hymenochaetaceae were collected. Of the collected specimens, ITS and LSU sequences were generated and phylogenetic analyses performed. From morphological and phylogenetic inferences, Sclerotus Xavier de Lima, gen. nov. is described based on collections of Phellinus extensus, while Inonotus parvisetus V.R.T. Oliveira, Xavier de Lima & Gibertoni, sp. nov., Tropicoporus flabellatus V.R.T. Oliveira, J.R.C. Oliveira-Filho, Xavier de Lima & Gibertoni, sp. nov and T. nullisetus Xavier de Lima, V.R.T. Oliveira & Gibertoni, sp. nov. are described as new species. Sclerotus gen. nov.
Biological and cultural history of domesticated dogs in the Americas
Anthropozoologica 57 (1)
Domestication had a dramatic influence on the cultural evolution of human histories, and on the biological evolution of domesticated species. Domestic dogs occurred earlier in the Americas than other domesticated animals. Older records in the continent come from North America, dated 11 000-8400 years BP, and in the Andes from 5600-5000 years BP. In order to present an overview of human-dog interaction in the Americas, and to identify gaps in knowledge of this subject, we reviewed 178 publications on zooarchaeological record of burials, genetics, morphology, and ethnological information of American dogs, revisiting the history and interactions across the continent. There is no evidence of an in situ dog initial domestication.
A Jacobson’s beetle from Cretaceous Charentese amber (Coleoptera: Jacobsoniidae)
Geodiversitas 44 (3)
Jacobsoniidae is a species-poor family of minute polyphagan beetles distributed in tropical and subtropical regions. Both extant representatives of the family as well as fossils are rare. Here we describe a new fossil species, Derolathrus capdoliensis n. sp., from latest Albian-earliest Cenomanian Charentese amber from the Cadeuil deposit, Charente-Maritime department in south-western France. The new species is defined by several unusual characters, most notably the co-joined but not fully fused two apical antennomeres. Derolathrus capdoliensis n. sp. is approximately contemporaneous with Kachin amber (burmite), filling an important geographical gap in the Mesozoic distribution of the family.
The Mesolithic of Atlantic Coastal Spain – a comparison with the Middle Ebro Basin
Comptes Rendus Palevol 21 (3)
This paper compares current evidence for Mesolithic adaptations along the north Spanish coast from Galicia in the west to the Basque Country in the east. Significant questions and issues pertinent to Mesolithic research are reviewed, followed by a brief discussion of advances in method and theory over the past 25 years. Cantabria, País Vasco, and Galicia are compared with each other and en bloc with evidence from the middle Ebro over the 12-6 ka BP interval considered to bracket the transition between foraging and domestication economies. Marked differences in the time-space grid, geology, and the resolution of the data hinder these comparisons.
Equids from the late Middle Pleistocene to Early Holocene of the Apulia Peninsula (southern Italy): reassessment of their taxonomy and biochronology
Geodiversitas 44 (2)
The Apulian Peninsula represents a key-region for the study of climatic changes and paleoenvironmental dynamics during the Quaternary. Both large and small-sized horses are well documented in this region during the Pleistocene and are frequently found associated. The caballoid horses from Middle to Late Pleistocene of Europe show a large intraspecific ecomorphological variation, emphasizing a strong link between skeletal adaptations and specific aspects of the palaeoenvironment. This large variability led to an extended debate concerning the taxonomy of equids and their evolutionary history.
New dalmanitid trilobite taxa from the Lower Devonian of Argentina: comments on spinosity in endemic taxa from southern high paleolatitudes
Comptes Rendus Palevol 21 (2)
Three new Lower Devonian dalmanitid trilobite taxa are recognized from the Talacasto Formation in the Precordillera Basin, Argentina, which includes two monospecific genera (Ivanites leonorae n. gen., n. sp. and Aguaditaspis mediaspina n. gen., n. sp.), and one additional new genus and species left in open nomenclature. These taxa combine characters of the subfamilies Dalmanitinae Vogdes, 1890 and Synphoriinae Delo, 1935, challenging their taxonomic distinction. Forty percent of the dalmanitids from high paleolatitudinal basins from southwestern Gondwana (Malvinokaffric) exhibit non-homologous dorsal spinosity. Aguaditaspis mediaspina n. gen., n. sp. shares similar spines with Trypaulites calypso (Hall, 1861).
New species of hesionid and phyllodocid polychaetes (Annelida, Errantia) from Clipperton Island
Zoosystema 44 (1)
The study of marine annelids from oceanic islands has been problematic, especially because of the lack of infrastructure, or of easily accessible logistics for frequent expeditions. In this contribution, some specimens collected during the J.-L. Étienne Expedition to Clipperton Island in 2005, belonging to the families Hesionidae Grube, 1850 and Phyllodocidae Örsted, 1843 are newly described. Type material is deposited in the Muséum national d’Histoire naturelle, Paris, and a few others in El Colegio de la Frontera Sur, Chetumal. Hesionidae includes Psamathe charpyi n. sp. diagnosed by having eyes of similar size and neurochaetal blades 4-10 × longer than wide.
Dendrobium petrophilum (Kraenzl.) Garay ex N.Hallé, a well-named species describing its unusual chasmophytic ecology
Adansonia 44 (1)
Dendrobium petrophilum (Kraenzl.) Garay ex N.Hallé was a species only known from the type specimen and was considered doubtful. Since it has been recently relocated in its type locality and in its surrounding areas, we were able to compare it to the endemic closely related and well known species, Dendrobium oppositifolium (Kraenzl.) N.Hallé. We confirm D. petrophilum as a distinct species based on its morphology and its very special ecology. Both species are fully described, compared, and illustrated. Comparative tables are given in English and French. We also discuss their ecology, distribution, phenology and confirm the IUCN assessments made by the local Endemia Red List Authority.
Phylogenetic signal in characters from Aristotle’s History of Animals
Comptes Rendus Palevol 21 (1)
The influential Greek philosopher Aristotle (384-322 BCE) is almost unanimously acclaimed as the founder of zoology. There is a consensus that he was interested in attributes of animals, but whether or not he tried to develop a zoological taxonomy remains controversial. Fürst von Lieven and Humar compiled a data matrix from Aristotle’s Historia animalium and showed, through a parsimony analysis published in 2008, that these data produced a hierarchy that matched several taxa recognized by Aristotle. However, their analysis leaves some questions unanswered because random data can sometimes yield fairly resolved trees.