Review of Dysmorphoptilidae Handlirsch (Hemiptera: Cicadomorpha) from the Argentinean Triassic, with description of a new subfamily, and a new species

This contribution presents new fossil insect taxa of the order Hemiptera (Cicadomorpha, Dysmorphoptilidae, Gallegomorphoptilinae subfam. n.) from the Ischichuca Formation (late Middle Triassic to early Late Triassic) from La Rioja Province (Argentina). One subfamily, one new species, and three new combinations, are proposed: Gallegomorphoptila kotejai sp. n., G. acostai comb. n., G. gigantea comb. n., G. pulcherrima comb. n. Also, a wide review of the family Dysmorphoptilidae HANDLIRSCH (diverse and well represented in the Argentinean Triassic levels), is madeFil: Martins-Neto, R.G.. Universidade Federal de Juiz de Fora, Minas Gerais; BrasilFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentin

Mesozoic Coleopteran Faunas fromArgentina: Geological Context, Diversity, Taphonomic Observations, and Comparison with Other Fossil Insect Records

The order Coleoptera is the most diversified group of the Class Insecta and is the largest group of the Animal Kingdom. This contribution reviews the Mesozoic insects and especially the coleopteran records from Argentina, based on bibliographical and unpublished materials (86 described species, 526 collected specimens). The material came from different geological units from the late Middle Triassic to the Late Triassic (Bermejo, Cuyo, and Malargüe basins) to the Middle-Late Jurassic and Early Cretaceous (Deseado Massif, Cañadón Asfalto, and San Luis Basin). The coleopteran record is composed of 29 described species with 262 collected specimens (isolated elytra) mainly represented by Triassic species and only four specimens recorded in Jurassic units, all of them currently unpublished. These fossil coleopterans provide fundamental information about the evolution of insects in the Southern Hemisphere and confirm the Triassic Argentinean insect deposits to be among the most important in the world.Fil: Lara, Maria Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Vaz Tassi, Lara. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentin

Revision of Two Spinicaudatan Species from the Cañadón Asfalto Formation (Jurassic), Patagonia Argentina

Re-examination under a scanning electron microscope (SEM) of the type material of the species described by Tasch and Volkheimer (1970) and Vallati (1986) was applied, as well as, new materials collected from different localities of the Las Chacritas Member from Cañadón Asfalto Formation (Argentina). Morphological description and new SEM images of the ornamentation pattern revealed features on carapaces that had not been recognized previously. These species are now referred to the family Eosestheriidae as Carapacestheria taschi (Vallati, 1986) and to the family Fushunograptidae as Wolfestheria patagoniensis (Tasch, in Tasch and Volkheimer, 1970). These records increase our knowledge about the Jurassic faunas from Argentina.Fil: Monferran, Mateo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Cabaleri, Nora Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geocronología y Geología Isotópica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geocronología y Geología Isotópica; Argentin

Collections paléontologiques de l'Université de Lille – Sciences et Technologies: II -Diplostraca (types et figurés)

An exceptional collection of Diplostraca (Spinicaudata, Leaiina) from various geographic localities all around the world and from Devonian to Jurassic beds, is re-described in this catalogue. Despite some imperfections due to the geopolitical climate of the epoch (the Cold War), the great value of the Defretin’s and Novozhilov’s work is confirmed. New interpretations are provided about discussed taxa: Estheriina, pseudoasmussia, Taimyrites, Fernandoalmeidium, Pseudestheria, and Teixeirium. Used as a reference work, this catalogue might permit these taxa to be reviewed in light of new methodologies and taxonomic schemes currently employed. Some species remain enigmatic, “Estheria” destombesi, “Lioestheria” toricata, “Lioestheria” propinqua and “Pseudoasmussia” striata, but offer a great possibility of revision by means of the data of this catalogue. The early record of Devonian-Carboniferous spinicaudatans in our collection is noteworthy, and provides important information on the early diversification of this group.Une collection exceptionnelle de Diplostraca (Spinicaudata, Leaiina), provenant de nombreux gisements mondiaux et d’une période géologique s’étendant du Dévonien au Jurassique, est révisée dans ce catalogue. Le travail des deux chercheurs, S. Defretin et N. Novozhilov, ayant contribué à constituer cette collection durant une période difficile (la guerre froide), conserve sa pleine importance scientifique, moyennant quelques précisions que ce catalogue tente d’apporter. Notre compilation permet aussi d’alimenter les discussions actuelles sur plusieurs taxons : Estheriina, Pseudoasmussia, Taimyrites, Fernandoalmeidium, Pseudestheria, et Teixeirium. Notre travail devrait déboucher sur des révisions, fondées sur les méthodes modernes de la taxinomie, d’espèces encore incomplètement élucidées : “Estheria” destombesi, “Lioestheria” toricata, “Lioestheria” propinqua et “Pseudoasmussia” striata. Le point scientifique le plus intéressant, abordé dans ce catalogue, concerne l’ordre des Spinicaudata, que notre matériel permet de suivre depuis ses premières formes du Dévonien-Carbonifère.Fil: Cuvelier, Jessie. Université de Lille; FranciaFil: Hennion, Marie. Muséum National d’Histoire Naturelle –; FranciaFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Vachard, Daniel. No especifíca

The Triassic Insect Fauna from the Los Rastros Formation (Bermejo Basin), La Rioja Province (Argentina): their context, taphonomy and paleobiology

En la Cuenca Bermejo, la Formación Los Rastros es portadora de una abundante fauna de insectos, principalmente organismos adultos terrestres y alados pertenecientes a los órdenes Blattoptera y Coleoptera. Los restos de insectos son encontrados en las pelitas negras de la facies de lago abierto. Las características tafonómicas de los insectos sugieren que los especímenes son alóctonos al lago. Los individuos pudieron llegar vivos al lago y sufrir una rápida caída a través de la columna de agua, preservándose intactos, o sufrieron fragmentación en el transporte aéreo y por ataques biológicos durante largos períodos de flotación.In the Bermejo Basin, the Los Rastros Formation bears an abundant insect fauna, mainly of terrestrial winged adult organisms related to the Blattoptera and the Coleoptera orders. The insect remains are found in the black shales of the offshore lacustrine facies and their taphonomic features suggest that the specimens were allochthonous to the lake. The individuals appear to arrived alive to the lake and had a rapid fall trough the water column, thus, they are preserved intact. In contrast, some of them may have suffered fragmentation in air traspontation and/or biological attack during long periods of flotation.Fil: Mancuso, Adriana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Martins-Neto, Rafael Gioia. Universidade Federal de Juiz de Fora; Brasi

Les collections du Musée d'Histoire Naturelle de Lille: - VIII-Diplostraca (Types et figurés)

The Diplostraca (also known as conchostracans; Arthropoda: Crustacea: Branchiopoda: Phyllopoda) are a group that were often collected in the coal basins of northern and eastern France, during the main period of activity of the coal industry (end of 19th Century to beginning of 20th Century); others were collected in Germany, Switzerland, Africa and Russia. Hence, the palaeontological collections of Lille (Natural History Museum of Lille and University of Lille) are especially rich in specimens. This paper presents a reasoned catalogue of the types and figured specimens of the collection of the Natural History Museum of Lille, associated with a brief review of the Palaeozoic diplostracans, and some new or updated data in geology and palaeontology. Fossil Diplostraca are a rather neglected group, which appears however to be important in biostratigraphy, sequential stratigraphy, palaeoclimatology, palaeobiology, palaeoecology and palaeobiogeography during both principal stages of the Late Carboniferous (Pennsylvanian); i.e., during Moscovian (traditionally called Westphalian in western Europe) and Kasimovian times (traditionally called Stephanian).Les Diplostraca (autrefois appelés conchostracés ; Arthropoda : Crustacea : Branchiopoda : Phyllopoda) sont un groupe qui a fait l’objet de nombreuses récoltes dans les bassins houillers du nord et de l’est de la France, durant la période d’activité maximale des mines de charbon (c’est-à-dire de la fin du XIXe siècle au début du XXe ) ; d’autres exemplaires ont été recueillis en Allemagne, en Suisse, en Afrique et en Russie. Ces très nombreux spécimens ont été rassemblés dans les collections publiques lilloises de paléontologie (Musée d’Histoire Naturelle de Lille et Université de Lille). Cet article pré- sente un catalogue raisonné des collections de types et figurés du Musée d’Histoire Naturelle de Lille ainsi qu’une révision des données générales sur les Diplostraca paléozoïques, et un certain nombre de données géologiques et paléontologiques nouvelles ou actualisées. En effet, ce groupe de fossiles s’avère important en biostratigraphie, stratigraphie séquentielle, paléoclimatologie, paléobiologie, paléoécologie et paléobiogéographie pour les deux périodes principales du Carbonifère supérieur (Pennsylvanien) : le Moscovien (classiquement Westphalien) et le Kasimovien (classiquement Stéphanien).Fil: Hennion, Marie. Muséum National d’Histoire Naturelle; FranciaFil: Cuvelier, Jessie. Université de Lille; FranciaFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Oudoire, Thierry. Université de Lille; FranciaFil: Vachard, Daniel. Université de Lille; Franci

THE BRAZILIAN MESOZOIC CONCHOSTRACAN FAUNAS: ITS GEOLOGICAL HISTORY AS AN ALTERNATIVE TOOL FOR STRATIGRAPHIC CORRELATIONS

The distribution (time-space) of conchostracan across the Brazilian geological column is here analysed, and the potential application to the stratigraphical and paleogeographical correlations is proposed. The Jurassic-Cretaceous conchostracan faunas are briefly revised from the taxonomic point of view, including their problems, collecting problems and stratigraphical distribution. Such aim of the study is based on the faunal similarities, and also that there are many species in common across both periods. As previously reported by different authors, there are close relationships between Brazilian and Central African faunas, now tentatively extended to Venezuela and southern South America. Likewise, relationships between Chinese and West Gondwanan faunas are confirmed. Seven conchostracan assemblages based in their biochron are proposed and compared with the Jurassic-Cretaceous conchostracan assemblages from China and other regions. Keywords: Crustacea, Conchostraca, Mesozoic, biostratigraphy, paleobiogeography.Se analiza la distribución de los conchostracos (en tiempo y espacio) a través de la columna geológica de Brasil y se propone su potencial aplicación a las correlaciones estratigráficas y paleogeográficas. Lãs faunas de conchostracos Jurásico-Cretácicos se revisan brevemente desde el punto de vista taxonómico, incluyendo sus problemáticas, problemas de colección y su distribución estratigráfica. El objetivo de este trabajo se basa en las semejanzas faunísticas y en lãs abundantes especies en común entre ambos períodos geológicos. Como fuera previamente reportado por diferentes autores, las estrechas relaciones existentes entre las faunas de Brasil y del centro de África, se extiende tentativamente hasta Venezuela y el extremo sur de America del Sur. Igualmente, se confirman propuestas previas sobre las relaciones entre las faunas de China y del Oeste de Gondwana. Em forma tentativa, se proponen siete asociaciones de conchostracos basados en su biocrón. Se comparan las asociaciones propuestas com aquellas del Jurásico-Cretácico de China y de otras regiones

DEATH BEHAVIOUR” – THANATOETHOLOGY, NEW TERM AND CONCEPT: A TAPHONOMIC ANALYSIS PROVIDING POSSIBLE PALEOETHOLOGIC INFERENCES. SPECIAL CASES FROM ARTHROPODS OF THE SANTANA FORMATION (LOWER CRETACEOUS, NORTHEAST BRAZIL)

Propõe-se um novo conceito, Tanatoetologia, e várias particularidades de tafocenose são analisadas na Formação Santana (Cretáceo Inferior, Nordeste do Brasil). A Tanatoetologia diz respeito à identificação, interpretação e estudo de um comportamento específico de um organismo momentos antes de sua morte definitiva e também antes do começo do processo de fossilização. O comportamento expressa agonia, freqüentemente devida a asfixia em terra, ar ou água, e pode estar expresso em fósseis e também em icnofósseis. O comportamento da morte em vários casos pode ser associado com evento de morte em massa e constituir uma ferramenta muito útil nas análises paleoecológicas e paleoetológicas. A identificação do paleocomportamento pode ser feita em tratos morfológicos preservados de fósseis e são apresentados alguns exemplos.A new concept, thanatoethology, is proposed and several peculiarities of the Santana Formation (Lower Cretaceous, Northeast Brazil) taphocenosis are analysed. Thanatoethology refers to the identification, interpretation and study of a specific behaviour performed by an organism moments before its definitive death, and also before the beginning of the fossilization process. This behaviour expresses agony, often due to asphyxia in land, air or water, and can be expressed in fossils as well as ichnofossils. The death behaviour in several cases can be associated with a mass mortality event and can be an extremely useful tool for paleoecological and paleoethological analysis. The identification of this paleobehaviour can be extracted from morphological traits preserved in the fossils, and some examples are furnished here

Reassignment of Lioestheria codoensis Cardoso (Spinicaudata, Anthronestheriidae) from the Lower Cretaceous of Brazil: systematics and paleoecology

 Lioestheria codoensis Cardoso was described from materials originally collected from the Codó Formation (Lower Cretaceous, Parnaíba Basin, Piauí State), northeastern Brazil. Since its discovery L. codoensis has been assigned to different genera by different authors [as Estheriina (Nudusia) and Cyzicus (Lioestheria)]. In this paper, previous systematic assignments are reviewed and discussed in light of new scanning electron microscopy studies of new material. As a result of this research, the species is assigned to a new genus of the Family Antronestheriidae, and the study integrates palaeontological, biological and ecological approaches to provide a robust description for the species. Previous assignments to other genera (Estheriina, Lioestheria and Cyzicus) are also assessed and comparisons with other related genera of the Family Anthronestheriidae(Pseudestherites, Etmosestheria, Anthronestheria and Paleolepthestheria? chinensis) are made. Detailed stratigraphical (Codó, Santana, Itapecuru, Rio da Batateira and Missão Velha formations) and geographical (seven localities) records are compiled. Finally, the autecology and within-species morphological variation are also addressed.Lioestheria codoensis Cardoso foi descrita a partir de materiais originalmente coletados da Formação Codó (Cretáceo Inferior, bacia do Parnaíba, Estado do Piauí), nordeste do Brasil. Desde a sua descoberta L. codoensis tem sido atribuída a diferentes gêneros por diferentes autores, como Estheriina (Nudusia) e Cyzicus (Lioestheria). Neste trabalho, atribuições sistemáticas anteriores são revistas e discutidas à luz de novos estudos de microscopia eletrônica de varredura de novo material. Como resultado desta pesquisa, a espécie é atribuída a um novo gênero da Família Antronestheriidae, sendo que o estudo integrou abordagens paleontológicas, biológicas e ecológicas para fornecer uma descrição robusta para a espécie. Atribuições anteriores para outros gêneros (Estheriina, Lioestheria e Cyzicus) também são analisadas e comparadas com outros gêneros afi ns da Família Anthronestheriidae (Pseudestherites, Etmosestheria, Anthronestheria e Paleolepthestheria? chinensis). Registros estratigráfi cos (formações Codó, Santana, Itapecuru, Rio da Batateira e Missão Velha) e geográfi cos detalhados (sete localidades) são compilados nesta publicação. Finalmente, a autoecologia e a variação morfológica dentro da espécie também são abordadasFil: Gallego, Oscar Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Nordeste. Centro de Ecología Aplicada del Litoral (i); Argentina;Fil: Monferran, Mateo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Nordeste. Centro de Ecología Aplicada del Litoral (i); Argentina;Fil: Astrop, Timothy Ian. University of Akron. Department of Biology.Program in Integrated Bioscience.;Fil: Zacarias, Iracema Anahi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Nordeste. Centro de Ecología Aplicada del Litoral (i); Argentina

Triassic age of the continental Pular Formation, Sierra de Almeida, Antofagasta, northern Chile

In this contribution, we present a reassessment of the Pular Formation age (Sierra de Almelda, Antofagasta) that in previous papers was attributed to either the Late Paleozoic or Triassic. At Quebrada del Medio, the Pular Formation includes a 379-meter-thick stratigraphic section formed from base to top by conglomerates, sandstones, black bituminous shales and limestones, tuffaceous sandstones and a poorly welded ignimbrite that , accumulated in fluvial and lacustrine environments. A multidisciplinary study of the flora and fauna was undertaken. The existence of diagnostic Gondwana microflora and macroflora allows attributing a Middle Triassic to early Late Triassic age to the Pular Formation.Facultad de Ciencias Naturales y Muse