Miospore palynology and biostratigraphy of Mississippian strata of the Amazonas Basin, Northern Brazil: part two

Melo, Jose Henrique G. and Playford, Geoffrey (2012) Miospore palynology and biostratigraphy of Mississippian strata of the Amazonas Basin, Northern Brazil: part two. AASP Contributions Series, 47 93-201.

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Author Melo, Jose Henrique G.
Playford, Geoffrey
Title Miospore palynology and biostratigraphy of Mississippian strata of the Amazonas Basin, Northern Brazil: part two
Journal name AASP Contributions Series   Check publisher's open access policy
ISSN 0160-8843
Publication date 2012-12
Sub-type Article (original research)
Volume 47
Start page 93
End page 201
Total pages 109
Place of publication College Station, TX, United States
Publisher American Association of Stratigraphic Palynologists Foundation
Collection year 2013
Language eng
Formatted abstract
In this second and concluding part of a detailed palynological study of subsurface Mississippian strata
(Oriximiná and Faro formations) of the Amazonas Basin, the systematic-descriptive account of the miospores is
completed, specifically dealing with the morphologically more complex forms, totalling 61 species. These
comprise three species of tricrassate forms; five acavate cingulate species; two patinate species, including
Cymbosporites loboziakii Melo & Playford sp. nov.; two species attributable to the Crassiti; 24 cingulicavate species,
including Indotriradites viriosus Melo & Playford sp. nov., Indotriradites multivolus (Daemon, 1974) Melo &
Playford comb. nov. et emend. [syn. I. mitratus (Higgs, 1975) Higgs, 1996], and Prolycospora rugulosa (Butterworth
& Spinner, 1967) Melo & Playford comb. nov.; 21 species of monopseudosaccates, including Endoculeospora
Melo & Playford sp. nov., and one of polypseudosaccates; one species of cavate monolete spores; a
single species belonging to the Hilates; and one of plicate spores.

     As with the forms reported in Part One (Playford & Melo, this volume), a significant proportion of those
described herein are referable to species known from various Gondwanan Mississippian palynofloras and also
from coeval Laurasian assemblages. The species documented permit a more detailed characterization of the
Tournaisian–Visean palynozones erected in 2003 by J.H.G. Melo and S. Loboziak in the Amazonas Basin; viz., in
ascending stratigraphic order, the Radiizonates arcuatusWaltzispora lanzonii [AL], Spelaeotriletes balteatus
Neoraistrickia loganensis [BL], and Spelaeotriletes pretiosusColatisporites decorus [PD] Interval Zones, and the
Reticulatisporites magnidictyus [Mag] Range (formerly Interval) Zone. The age spans and most other features of
these zones are maintained according to the original definitions, and their international correlation is discussed
in the light of palynological and marine faunal data reported from equivalent sections elsewhere in Gondwana.
The bearing of the palynological datings on the Mississippian lithostratigraphy and sequence stratigraphy of the
Amazonas Basin is briefly discussed.
Keyword Miospores
Systematic palynology
Marine faunal correlations
Amazonas Basin
Mississippian (Lower Carboniferous)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Official 2013 Collection
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Created: Thu, 18 Apr 2013, 11:42:15 EST by Ms Ramona Hooyer on behalf of School of Earth Sciences