Ecological changes in Pennsylvania (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundances

Barry Thomas; T. K. Dimitrova

doi:10.1016/j.earscirev.2017.05.008

Ecological changes in Pennsylvania (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundances

Barry Thomas, T. K. Dimitrova

Department of Life Sciences

Bulgarian Academy of Sciences

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

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Abstract

The distribution and relative amounts of six genera of lycophyte microspores, Lycospora, Densosporites, Crassispora, Cirratriradites, Endosporites and Cadiospora, are compared in the Pennsylvanian coals from the Dobrudzha and Forest of Dean coalfields, clastic sediments from the Glace Bay borehole in the Cape Breton Coalfield, and the southern crop of the South Wales coalfield. Inverse relationships are shown between Lycospora and Densosporites and between Lycospora and Crassispora in samples from all of the coalfields. The changes in microspore assemblages suggest there were at least five different communities of lycophyte plants growing in the Pennsylvanian swamps. Changes in microspore assemblages at the Asturian/Cantabrian boundary mirror the previously described macrofloral changes at this time

Original language	English
Pages (from-to)	646-662
Number of pages	17
Journal	Earth-Science Reviews
Volume	171
Early online date	09 Jun 2017
DOIs	https://doi.org/10.1016/j.earscirev.2017.05.008
Publication status	Published - 01 Aug 2017

Keywords

Pennsylvanian
lycophytes
microspores
ecological changes

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10.1016/j.earscirev.2017.05.008

Ecological changes in Pennsylvanian (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundancesAccepted author manuscript, 1.43 MB

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title = "Ecological changes in Pennsylvania (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundances",

abstract = "The distribution and relative amounts of six genera of lycophyte microspores, Lycospora, Densosporites, Crassispora, Cirratriradites, Endosporites and Cadiospora, are compared in the Pennsylvanian coals from the Dobrudzha and Forest of Dean coalfields, clastic sediments from the Glace Bay borehole in the Cape Breton Coalfield, and the southern crop of the South Wales coalfield. Inverse relationships are shown between Lycospora and Densosporites and between Lycospora and Crassispora in samples from all of the coalfields. The changes in microspore assemblages suggest there were at least five different communities of lycophyte plants growing in the Pennsylvanian swamps. Changes in microspore assemblages at the Asturian/Cantabrian boundary mirror the previously described macrofloral changes at this time",

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doi = "10.1016/j.earscirev.2017.05.008",

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T1 - Ecological changes in Pennsylvania (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundances

AU - Thomas, Barry

AU - Dimitrova, T. K.

PY - 2017/8/1

Y1 - 2017/8/1

N2 - The distribution and relative amounts of six genera of lycophyte microspores, Lycospora, Densosporites, Crassispora, Cirratriradites, Endosporites and Cadiospora, are compared in the Pennsylvanian coals from the Dobrudzha and Forest of Dean coalfields, clastic sediments from the Glace Bay borehole in the Cape Breton Coalfield, and the southern crop of the South Wales coalfield. Inverse relationships are shown between Lycospora and Densosporites and between Lycospora and Crassispora in samples from all of the coalfields. The changes in microspore assemblages suggest there were at least five different communities of lycophyte plants growing in the Pennsylvanian swamps. Changes in microspore assemblages at the Asturian/Cantabrian boundary mirror the previously described macrofloral changes at this time

AB - The distribution and relative amounts of six genera of lycophyte microspores, Lycospora, Densosporites, Crassispora, Cirratriradites, Endosporites and Cadiospora, are compared in the Pennsylvanian coals from the Dobrudzha and Forest of Dean coalfields, clastic sediments from the Glace Bay borehole in the Cape Breton Coalfield, and the southern crop of the South Wales coalfield. Inverse relationships are shown between Lycospora and Densosporites and between Lycospora and Crassispora in samples from all of the coalfields. The changes in microspore assemblages suggest there were at least five different communities of lycophyte plants growing in the Pennsylvanian swamps. Changes in microspore assemblages at the Asturian/Cantabrian boundary mirror the previously described macrofloral changes at this time

KW - Pennsylvanian

KW - lycophytes

KW - microspores

KW - ecological changes

UR - http://hdl.handle.net/2160/45265

U2 - 10.1016/j.earscirev.2017.05.008

DO - 10.1016/j.earscirev.2017.05.008

M3 - Article

SN - 0012-8252

VL - 171

SP - 646

EP - 662

JO - Earth-Science Reviews

JF - Earth-Science Reviews

ER -

Ecological changes in Pennsylvania (Asturian and early Cantabrian) coal floras inferred from lycophyte microspore abundances

Abstract

Keywords

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