8 Works

A new faunistic component of the Lower Triassic Panchet Formation of India increases the continental non-archosauromorph neodiapsid record in the aftermath of the end-Permian mass extinction

Martin Ezcurra, Saswati Bandyopadhyay & Kasturi Sen
The fossil record of Early Triassic diapsids is very important to understand how the end-Permian mass extinction affected ecosystems and the patterns and processes involved in the subsequent biotic recovery. Vertebrate fossil assemblages of continental deposits in current-day South Africa, China and Russia are the best source of information of this clade during the aftermath of the extinction event. Although considerably less sampled, the Induan continental rocks of the Panchet Formation of the Damodar Basin...

Morphologic-phylogenetic analysis of the late Cenozoic Chlamydini von Teppner (Bivalvia: Pectinidae) of southern South America

María Belén Santelli, Maximiliano J. Alvarez & Claudia J. Del Río
The tribe Chlamydini was highly diversified in the marine Neogene of southern South America, reaching its maximum taxonomic diversity during the Miocene. However, the evolutionary relationships of South American taxa remain uncertain. This is the first phylogenetic analysis based on a large morphological matrix on Pectinidae, which is focusing on South American taxa and species related to Chlamys s. The phylogenetic analysis is based on a matrix composed of 145 shell characters scored for 48...

Data from: Palynology of a short sequence of the Lower Devonian Beartooth Butte Formation at Cottonwood Canyon (Wyoming): Age, depositional environments and plant diversity

Alexandru Tomescu, Sol Noetinger & Alexander Bippus
The Beartooth Butte Formation hosts the most extensive Early Devonian macroflora of western North America. The age of the flora at Cottonwood Canyon (Wyoming) has been constrained to the Lochkovian-Pragian interval, based on fish biostratigraphy and unpublished palynological data. We present a detailed palynological analysis of the plant-bearing layers at Cottonwood Canyon. The palynomorphs comprise 32 spore, five cryptospore, two prasinophycean algae and an acritarch species. The stratigraphic ranges of these palynomorphs indicate a late...

Biometric conversion factors as a unifying platform for comparative assessment of invasive freshwater bivalves

Neil Coughlan, Eoghan Cunningham, Ross Cuthbert, Patrick Joyce, Pedro Anastacio, Filipe Banha, Nicolás Bonel, Stephanie Bradbeer, Elizabeta Briski, Vincent Butitta, Zuzana Čadková, Jaimie Dick, Karel Douda, Lawrence Eagling, Noé Ferreira-Rodríguez, Leandro Hünicken, Mattias Johansson, Louise Kregting, Anna Labecka, Deliang Li, Florencia Liquin, Jonathan Marescaux, Todd Morris, Patrycja Nowakowska, Małgorzata Ożgo … & Francisco Sylvester
1. Invasive bivalves continue to spread and negatively impact freshwater ecosystems worldwide. As different metrics for body size and biomass are frequently used within the literature to standardise bivalve related ecological impacts (e.g. respiration and filtration rates), the lack of broadly applicable conversion equations currently hinders reliable comparison across bivalve populations. To facilitate improved comparative assessment amongst studies originating from disparate geographic locations, we report body size and biomass conversion equations for six invasive freshwater...

Genetic variation in Neotropical butterflies is associated with sampling scale, species distributions, and historical forest dynamics

Natalí Attiná, Ezequiel Núñez Bustos, Darío A. Lijtmaer, Paul D. N. Hebert, Pablo L. Tubaro & Pablo D. Lavinia
Prior studies of butterfly diversification in the Neotropics have focused on Amazonia and the tropical Andes, while southern regions of the continent have received little attention. To address the gap in knowledge about the Lepidoptera of temperate South America, we analyzed over 3,000 specimens representing nearly 500 species from Argentina for a segment of the mitochondrial COI gene. Representing 42% of the country’s butterfly fauna, collections targeted species from the Atlantic and Andean forests, biodiversity...

Data from: Diet composition of reintroduced Red-and-Green Macaws (Ara chloropterus) reflects gradual adaptation to life in the wild

Noelia Volpe, Bettina Thalinger, Elisabet Vilacoba, Thomas W.A. Braukmann, Adrián S. Di Giacomo, Igor Berkunsky, Darío A. Lijtmaer, Dirk Steinke & Cecilia Kopuchian
Over the last two centuries, the Red-and-Green Macaw (Ara chloropterus) has become locally extinct in Argentina. In an attempt to restore its key ecosystem functions as both disperser and regulator of large-seeded plants, a reintroduction project was initiated at the Iberá National Park in northeastern Argentina. The ability of released individuals to find food is crucial, especially when working with captive-bred animals, as long-term establishment of a self-sustaining population depends on their short-term ability to...

Data from: Deciduous dentition and dental eruption sequence in Interatheriinae (Notoungulata, Interatheriidae): implications in the systematics of the group

Mercedes Fernández, Juan Fernicola & Esperanza Cerdeño
Studies focused on deciduous dentition, ontogenetic series, and tooth eruption and replacement patterns in fossil mammals have lately increased due to the recognized taxonomic and phylogenetic weight of these aspects. A study of the deciduous and permanent dentition of Interatherium and Protypotherium (Interatheriinae) is presented, mainly based on unpublished materials. Deciduous cheek teeth are brachydont and placed covering the apex of the respective permanent tooth; in addition, some morphological and metrical differences are observed along...

Data from: Rapid speciation via the evolution of pre-mating isolation

Sheela Turbek, Melanie Browne, Adrián S. Di Giacomo, Cecilia Kopuchian, Wesley Hochachka, M. Cecilia Estalles, Darío Lijtmaer, Pablo Tubaro, Luís Fábio Silveira, Irby J. Lovette, Rebecca Safran, Scott Taylor & Leonardo Campagna
Behavioral isolation can catalyze speciation and permit the slow accumulation of additional reproductive barriers between co-occurring organisms. We illustrate how this process occurs by examining the genomic and behavioral bases of pre-mating isolation between two bird species (Sporophila hypoxantha and the recently discovered S. iberaensis) that belong to the capuchino seedeaters, a recent, rapid radiation characterized by variation in male plumage coloration and song. Though these two species co-occur without ecological barriers to reproduction, we...

Registration Year

  • 2021

Resource Types

  • Dataset


  • Bernardino Rivadavia Natural Sciences Museum
  • University of North Georgia
  • Water Research Institute
  • Queen's University Belfast
  • National University of Salta
  • Indian Statistical Institute
  • Oregon State University
  • University of Gdańsk
  • University of Zaragoza
  • Kazimierz Wielki University in Bydgoszcz