Skip to main content
Journal ArticleOPEN ACCESS

Novo registro de Zollernioxylon tinocoi Mussa (Fabaceae) no Vale do Juruá, Mioceno da Formação Solimões, Bacia do Acre, Brasil

Gaea (2012) 8(1) 26-32
DOI: 10.4013/gaea.2012.81.04
3Citations
Citations of this article
18Readers
Mendeley users who have this article in their library.

Abstract

A new record of fossil wood to the Valley of Juruá, Solimões Formation, Southwestern Amazon, is analyzed. The fossil material came from one of the countless outcrops found along the Juruá River. The wood described presents anatomical affi nities with the Fabaceae and more specifi cally with Zollernioxylon tinocoi Mussa. This new record confi rms the presence of the Fabaceae in the past vegetation of Amazon and by its comparison with modern vegetation contributes to the paleoenvironmental reconstructions of the region. © 2012.

Figures

  • Figure 1. Location map from the State of Acre, North of Brazil, and the places with fossil wood materials (triangles). The detached area (in green) marks the location of the outcrop “Estirão do Mississippi” in the course of the Juruá River, origin of the fossil wood herein studied.
  • Figure 2. The four stratigraphic sections from Simpson and Paula-Couto (1981) along the Juruá River (modified). The fossil wood (red circle) was collected in the lower levels of the basal conglomerates from section B.
  • Figure 3. A and B, cross-section. A. Appearance of diffuse porosity, solitary and multiples vessels, distribution of parenchyma; B. Detail of distribution of vessels and parenchyma vasicentric, aliform to confluent and thick-walled fibers; C. longitudinal radial section. Arrow indicating prismatic crystals in chambers. D and E longitudinal tangential section. D. Detail of homogeneous rays, and most 2-3 seriates; E. homogeneous rays 1-3 series and storied structure. Scale: 60μm.
  • Figure 4. Photo in scanning electron microscopy. A, B and C cross-section. A. solitary and multiples vessels and distribution of parenchyma; B. detail of a group of vessels (white arrow) and thick-walled fibers (black arrow); C. Inner wall vessels with thick walls (white arrow) and detail of ornamentation of scores between two vessels (black arrow); D, E and F, longitudinal radial section; D. Simple perforation plate with intervessel pits and vessels with different diameters, content similar to gum or resin present; E. Detail of vessels of different diameters and simple perforation plates; F. vessel detail, showing the content similar to gum or resin; simple perforation plates and vesture intervessel pits. Scale: A, B, E, and F = 60μm, C and D = 30μm.
  • Figure 5. SEM images. A, B, C, D, E and G. Longitudinal radial section; A. Vestured pits in small vessels; B. Vestured pits in medium vessels (arrow); C. Vestured pits in bigger vessels; D. Vessel-ray pits; E. Detail of a fibrotraqueide; F. Longitudinal tangential section, homogeneous rays storied; G. Detail of chambered crystal (black arrow) and parenchyma (white arrow). Scales: A-D = 10 mm; E = 30μm, F-G = 60μm.

Author supplied keywords

References Powered by Scopus

This article is free to access.

Get full text

Amazonia, Landscape and Species Evolution: A Look into the Past

Amazonia, Landscape and Species Evolution: A Look into the Past
109Citations
218Readers

Your institution provides access to this article.

View more at Scopus

Cited by Powered by Scopus

View more at Scopus

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Kloster, A., Gnaedinger, S., Adami-Rodrigues, K., & Urban, C. (2012). Novo registro de Zollernioxylon tinocoi Mussa (Fabaceae) no Vale do Juruá, Mioceno da Formação Solimões, Bacia do Acre, Brasil. Gaea, 8(1), 26–32. https://doi.org/10.4013/gaea.2012.81.04

Readers over time

‘13‘14‘15‘16‘17‘18‘19‘21‘22‘23‘2402468

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 10

67%

Professor / Associate Prof. 3

20%

Researcher 2

13%

Readers' Discipline

Tooltip

Earth and Planetary Sciences 7

47%

Agricultural and Biological Sciences 6

40%

Environmental Science 2

13%

Save time finding and organizing research with Mendeley

Sign up for free
0