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	Provedor de dados Anais da ABC (AABC) (2) Autor RICHTER,MARTHA (2) BOSETTI,ELVIO P. (1) DIAS,ELISEU V. (1) HORODYSKI,RODRIGO S. (1) Palavra-chave Chondrichthyes (1) Devonian (1) Gondwana (1) Paleobiology (1) Paleohistology (1) Paraná Basin (1) Rio do Rasto Formation (1) Southern Brazil (1) Taphonomy. (1) Temnospondyli (1) Upper Permian (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2017 (1) 2002 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Early Devonian (Late Emsian) shark fin remains (Chondrichthyes) from the Paraná Basin, southern Brazil Anais da ABC (AABC) RICHTER,MARTHA; BOSETTI,ELVIO P.; HORODYSKI,RODRIGO S.. ABSTRACT We report on the pioneering discovery of Devonian fish remains in the Paraná Basin, which represents the southernmost record of fishes from that period in mainland South America. The material comes from an outcrop at the lower portion of the São Domingos Formation, within Sequence C of the Paraná-Apucarana sub-basin in Tibagi, State of Paraná. Marine invertebrates are abundant in the same strata. The dark colored fish remains were collected in situ and represent natural moulds of partially articulated shark fin rays (radials). No elements such as teeth or prismatic cartilage have been preserved with the fins rays. This can be attributed to the dissolution of calcium-phosphatic minerals at the early stages of fossilization due to diagenetic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chondrichthyes; Devonian; Gondwana; Paraná Basin; Southern Brazil; Taphonomy.. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100103 On the squamation of Australerpeton cosgriffi Barberena, a temnospondyl amphibian from the Upper Permian of Brazil Anais da ABC (AABC) DIAS,ELISEU V.; RICHTER,MARTHA. Abdominal scales of a juvenile specimen of Australerpeton cosgriffi Barberena 1998 are made of primary compact bone rich in osteocyte lacunae; vascular canals and primary osteons are rare with no sign of remodelling of the tissue by resorption and redeposition. In contrast, the abdominal scales of an adult of the same species shows extensive reworking of the bone tissue. The scale grows by apposition of lamellar bone peripherally around the whole scale; the presence of Sharpey fibers in the periphery of the scales both basally and externally suggests that they remained deeply embedded in the dermis; the embryonic scale is completely remodelled in the adult by resorption and redeposition which produces a cancellous bone with large erosion bays and secondary... Tipo: Info:eu-repo/semantics/article Palavras-chave: Temnospondyli; Paleohistology; Paleobiology; Upper Permian; Rio do Rasto Formation. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000300010 Registros recuperados: 2 Primeira ... 1 ... Última

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