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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Permian woods with preserved primary structures from the southeast of Brazil (Irati Formation, Parana basin)

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Author(s):
Faria, Rafael Souza [1] ; Ricardi-Branco, Fresia [1] ; Rohn, Rosemarie [2] ; Fernandes, Marcelo Adorna [3] ; Christiano-De-Souza, Isabel [1]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, Inst Geosci, Dept Geol & Nat Resources, Carlos Gomes 250, BR-13083855 Campinas, SP - Brazil
[2] Univ State Sao Paulo Unesp Rio Claro, Dept Appl Geol, Av 24a, 1515, Rio Claro, SP - Brazil
[3] Univ Fed Sao Carlos, Dept Ecol & Evolut Biol, Washington Luiz Highway 235, Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS; v. 98, n. 3, p. 385-401, SEP 2018.
Web of Science Citations: 0
Abstract

This research described fossil woods with preserved pith and primary xylem from strata of the Irati Formation (Artinskian) of the Parana Basin (southeastern Brazil). The three specimens studied are all related to the Coniferales and include the following taxa: Solenopitys paulistana Krausel, Atlanticoxylon ibiratinum n. sp. and Abietopitys sp. Krausel. Solenopitys paulistana represents a species with a solid, heterocellular pith with a peripheral secretory canal system. Atlanticoxylon ibiratinum n. sp. has a lacunose, heterocelular pith with ``nests{''} of sclereids, with a central secretory canal and a peripheral system of canals. Abietopitys sp. has a solid, lobed, homocelular pith associated with a secondary xylem containing cross-fields with non-contiguous pits (abietoid vascular rays). Xeromorphic features observed in these specimens, such as a pith with groups of sclereids and false growth rings, may be related to the depositional environment of the Irati Formation. The specific factor triggering the xeromorphy has not yet been determined, but the present study corroborates clearly the sedimentary evidence of dry conditions during the deposition of the Irati Formation, as seen in the 30-m-thick carbonate layer extending through four South American countries. (AU)

FAPESP's process: 13/11563-6 - Multi-source data integration for paleobotanical analysis of the Paraná Basin, during Carboniferous and Permian times
Grantee:Fresia Soledad Ricardi Torres Branco
Support Opportunities: Regular Research Grants
FAPESP's process: 09/10547-1 - Paleophytogeographic and lignofloras from Paraná Basin during the Neopaleozoic
Grantee:Fresia Soledad Ricardi Torres Branco
Support Opportunities: Regular Research Grants