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Chemometric study of the preservation modes of Athabaskia anax (Trilobita, Cambrian Precordillera, Mendoza, Argentina): Implications for taxonomy
(Elsevier, 2021-08)
Selected pygidia of the middle Cambrian corynexochid trilobite Athabaskia anax (Walcott 1916) from the Miaolingian Series of San Isidro (Precordillera, Mendoza, Argentina) are analyzed for the first time using scanning ...
Biotic interaction between spionid polychaetes and bouchardiid brachiopods: Paleoecological, taphonomic and evolutionary implications
(2008-12-01)
Shells of Bouchardia rosea (Brachiopoda, Rhynchonelliformea) are abundant in Late Holocene death assemblages of the Ubatuba Bight, Brazil, SW Atlantic. This genus is also known from multiple localities in the Cenozoic ...
Biotic interaction between spionid polychaetes and bouchardiid brachiopods: Paleoecological, taphonomic and evolutionary implications
(2008-12-01)
Shells of Bouchardia rosea (Brachiopoda, Rhynchonelliformea) are abundant in Late Holocene death assemblages of the Ubatuba Bight, Brazil, SW Atlantic. This genus is also known from multiple localities in the Cenozoic ...
Morphology and biology of a new Pseudopolydora (Annelida: Spionidae) species from Brazil
(CAMBRIDGE UNIV PRESS, 2009)
Adults of Pseudopolydora rosebelae sp. nov. inhabit silty tubes on muddy bottoms in shallow water in southern Brazil, states of Sao Paulo and Rio de Janeiro. They are rare and extremely delicate, attaining 20 mm long for ...
Description of First Instar Larvae of the Subgenus Praocis (Praocis) Eschscholtz, 1829 (Coleoptera: Tenebrionidae: Praociini)
(Polish Academy of Sciences, 2016-12)
The subgenus Praocis Eschscholtz, 1829 (Pimeliinae: Praociini) is an endemic group of north-central Chile consisting of 18 flightless species distributed mostly across the Chilean desert and coastal steppe. In this work ...
Axial regeneration in segmented animals: A post-embryonic reboot of the segmentation process
(CRC Press - Taylor & Francis Group, 2020)
Axial regeneration, the ability to regrow structures along the main body axis, is a widespread, likely ancestral trait of metazoans. Despite its assumed adaptive value, regenerative ability has decreased, disappeared and ...