The new genus<i>Talacastospongia</i>: insights on the first record of a Devonian sponge from South America

Carrera, Marcelo G.; Rustán, Juan José

doi:10.1017/jpa.2016.9

Cited by 7 publications

(5 citation statements)

References 33 publications

(53 reference statements)

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“…Indeed, Pontagrossia reticulata gen. et sp. nov. is similar in form to fossils of known articulated South American Paleozoic sponges (Carrera, 1994;Carrera & Ortega, 2009;Carrera & Rustán, 2015;Carrera et al, 2018;Mouro et al, 2014). However, P. reticulata gen. et sp.…”

Section: Discussion and Final Considerationsmentioning

confidence: 50%

A new invertebrate from the Ponta Grossa Formation (Devonian), Paraná Basin, Brazil

Chahud

Fairchild

2020

Rev. bras. paleontol.

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Section: Discussion and Final Considerationsmentioning

confidence: 50%

A new invertebrate from the Ponta Grossa Formation (Devonian), Paraná Basin, Brazil

Chahud

Fairchild

2020

Rev. bras. paleontol.

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“…Some studies, such as that of Bignon and Crônier (2013), were able to use greater stratigraphic resolution, especially for the Emsian interval, but because we were considering taxa distributed across several continents, we were not able to subdivide the Emsian or other stages to a finer scale. Geographic areas used generally correspond to broad areas of endemism and biogeographic regions identified in numerous previous studies of Devonian paleogeography (e.g., Lieberman and Eldredge 1996; Scotese et al 1999; Rode and Lieberman 2005; Carrera and Rustán 2015; Dowding and Ebach 2018, 2019; Bault et al 2022b). However, we refer to the region “Europe” only for heuristic purposes and in reference to the modern day (involving fossils distributed in what are today parts of western and central Europe, including Belgium, France, Germany, and Spain), as in the Siluro-Devonian these comprised a set of different terranes.…”

Section: Methodsmentioning

confidence: 99%

Morphological evolution during the last hurrah of the trilobites: morphometric analysis of the Devonian asteropyginid trilobites

Martin¹,

Carranza²,

LaVine³

et al. 2022

Paleobiology

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The Asteropyginae Delo, 1935 is a group of phacopid trilobites in the family Acastidae Delo, 1935 that has served as the focus for several studies due to their distinctive morphologies and diversity. However, despite an interest in these characteristic morphologies, there have been no studies that have examined this group using morphometric techniques. Our investigation utilized both geometric morphometric and elliptical Fourier methods to quantify the morphology of cephalic sclerites of asteropyginid specimens representing wide taxonomic sampling of the clade. We constructed a phylomorphospace that shows temporal and spatial patterns of phenotypic evolution within the framework of a novel tip-dated phylogenetic tree generated using Bayesian inference. We recovered similar patterns in disparity regardless of the morphometric approach. Both analyses illustrated a marked expansion into morphospace throughout the temporal range of the clade, peaking in disparity in the Emsian and with European taxa exhibiting the highest disparity in glabellar morphospace. Additionally, glabellar shape showed low phylogenetic signal and no major patterns in phylomorphospace. This study highlights the utility of employing different methodologies to quantitatively explore the disparity of fossil taxa. It also illustrates some of the patterns of morphological change occurring during one of the final and major evolutionary radiations within Phacopida.

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“…100 m. The paleobiological content includes a rich association of marine invertebrates, largely brachiopods (Fig. 3i) linked to the Malvinokaffric fauna (Baldis and Rossi de García 1972;Amos and Boucot 1963;Herrera 1993Herrera , 1995aLevy and Nullo 1970a, b;Racheboeuf and Herrera 1994;Racheboeuf et al 1998;Sánchez et al 1991;Rustán and Vaccari 2010;Carrera and Rustán 2015;Salas et al 2013). Based on brachiopods Sánchez et al (1991) and Herrera (1993) assigned an early Lochkovian age to the base of the unit (Fig.…”

Section: Geological Setting and Stratigraphymentioning

confidence: 99%

Provenance analysis of Devonian peripheral foreland basins in SW Gondwana, case of the Gualilán Group, Precordillera Argentina

Arnol

Uriz

Cingolani

et al. 2020

Int J Earth Sci (Geol Rundsch)

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We carried out a sedimentary provenance analysis of the Devonian Gualilán Group, Central Precordillera of western Argentina, focusing on the siliciclastic record of the Talacasto (Lower Devonian) and the Punta Negra (Lower-Middle Devonian) formations. Provenance is determined based on petrography, heavy minerals, whole-rock geochemistry, Sm-Nd isotopes, and U-Pb detrital zircon dating. Sandstones are composed of quartz, feldspar, and metamorphic and plutonic lithoclasts. The Gualilán Group underwent moderate weathering indicated by CIA values and Th/U ratios below 76 and 4.9, respectively. Th/Sc, Zr/Sc, Cr/V and La/Th ratios, negative Eu-anomalies and REE patterns point to felsic source compositions. The heavy minerals and zircon morphologies indicate that high-grade metamorphic and igneous rocks provided the bulk of detritus. T DM ages between 1.40 and 1.46 Ga and ε Nd(t) values ranging from − 9.21 to − 11.13 constrain the signature of the sources. U-Pb detrital zircon ages for the Talacasto Formation are equally distributed between the Famatinian (Late Cambrian-Late Devonian), Pampean-Brazilian (Neoproterozoic-Early Cambrian) and Grenvillian-Sunsas (Mesoproterozoic) orogenic cycles. Detrital zircon ages of the Punta Negra Formation were dominantly supplied from Mesoproterozoic rocks, linked to the Grenvillian-Sunsas orogeny. The data indicate a provenance from rocks located eastwards of the basin represented by the basement of the Pampean Ranges. The peripheral foreland basin developed during the post-collisional regime that followed the accretion of Cuyania against Gondwana. Whereas eastern and western Pampean Ranges provided detritus to the Talacasto Formation, the Punta Negra Formation was sourced by the western Pampean Ranges, implying exhumation and erosion of such basement during the Devonian.

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The new genusTalacastospongia: insights on the first record of a Devonian sponge from South America

Cited by 7 publications

References 33 publications

A new invertebrate from the Ponta Grossa Formation (Devonian), Paraná Basin, Brazil

A new invertebrate from the Ponta Grossa Formation (Devonian), Paraná Basin, Brazil

Morphological evolution during the last hurrah of the trilobites: morphometric analysis of the Devonian asteropyginid trilobites

Provenance analysis of Devonian peripheral foreland basins in SW Gondwana, case of the Gualilán Group, Precordillera Argentina

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