Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain)
In the Oliete Sub-Basin, the Escucha Formation has been divided into three different lithologic intervals, from base to top: E1 (heterolithic with coal), E2 (mainly sandstones), and E3 (claystones). At the upper part of the interval E2, a grey-silty lithosome has been recognized, corresponding to a...
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ftunivcmadrid:oai:docta.ucm.es:20.500.14352/87945 2023-10-29T02:31:11+01:00 Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) Colonisation par des tapis de marchantiopsides dans l’Aptien–Albien de la formation d’Escucha (sous-bassin d’Oliete, chaîne Ibérique, Espagne orientale). Diéguez, Carmen Rodríguez López, Juan Pedro Meléndez Hevia, María Nieves 2007 application/pdf https://hdl.handle.net/20.500.14352/87945 https://doi.org/10.1016/j.crpv.2007.09.022 https://www.sciencedirect.com/science/article/pii/S1631068307001182?via%3Dihub eng eng Elsevier CGL2005–07445-C03–03 doi:10.1016/j.crpv.2007.09.022 1777-571X 1631-0683 https://www.sciencedirect.com/science/article/pii/S1631068307001182?via%3Dihub https://hdl.handle.net/20.500.14352/87945 Attribution-NonCommercial-NoDerivatives 4.0 International open access http://creativecommons.org/licenses/by-nc-nd/4.0/ 561 Marchantiopsida Marchantiaceae Asexual reproduction Clonality Colonization mats Upper Aptian–Lower Albian Spain Paleontología 2416 Paleontología journal article VoR 2007 ftunivcmadrid https://doi.org/20.500.14352/8794510.1016/j.crpv.2007.09.022 2023-10-03T23:11:32Z In the Oliete Sub-Basin, the Escucha Formation has been divided into three different lithologic intervals, from base to top: E1 (heterolithic with coal), E2 (mainly sandstones), and E3 (claystones). At the upper part of the interval E2, a grey-silty lithosome has been recognized, corresponding to a low-energy sedimentary environment related to a sandy shoal. In this lithosome, marchantiopsid-rich beds extending up to tens of square metres have been preserved. The plant association consists of well-developed mature gametophytes of complex thallose liverworts with thalli radial, dichotomous branched, rosette forming, prostrate and, in most cases, with gemmae cups located on their dorsal surface. The occurrence of scattered individuals forming distinct rosettes that, in many cases, are interlocked or interwoven and the loose arrangement of the association, along with sedimentological characteristics, allows us to interpret these liverworts-rich beds as monospecific colonization mats at early stages of colonization, in which marchantiopsids played the role of pioneers. In addition, the high proportion of gemmiferous individuals provides significant information on the environmental conditions and the effectiveness of colonization by asexual diaspores. Specimens have been assigned to family Marchantiaceae owing to their morphological features. Although liverworts colonization mats have been mentioned from the Albian of Antarctica, no fossil record of these existed at lower palaeolatitudes or in the Upper Aptian–Lower Albian. In addition, no previous record of clonal communities of plants derived from gemmae exists. Due to the latter, the occurrence of the studied colonization mats becomes of prime importance Depto. de Geodinámica, Estratigrafía y Paleontología Fac. de Ciencias Geológicas TRUE pub Article in Journal/Newspaper Antarc* Antarctica Universidad Complutense de Madrid (UCM): E-Prints Complutense Comptes Rendus Palevol 6 6-7 413 422 |
institution |
Open Polar |
collection |
Universidad Complutense de Madrid (UCM): E-Prints Complutense |
op_collection_id |
ftunivcmadrid |
language |
English |
topic |
561 Marchantiopsida Marchantiaceae Asexual reproduction Clonality Colonization mats Upper Aptian–Lower Albian Spain Paleontología 2416 Paleontología |
spellingShingle |
561 Marchantiopsida Marchantiaceae Asexual reproduction Clonality Colonization mats Upper Aptian–Lower Albian Spain Paleontología 2416 Paleontología Diéguez, Carmen Rodríguez López, Juan Pedro Meléndez Hevia, María Nieves Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) |
topic_facet |
561 Marchantiopsida Marchantiaceae Asexual reproduction Clonality Colonization mats Upper Aptian–Lower Albian Spain Paleontología 2416 Paleontología |
description |
In the Oliete Sub-Basin, the Escucha Formation has been divided into three different lithologic intervals, from base to top: E1 (heterolithic with coal), E2 (mainly sandstones), and E3 (claystones). At the upper part of the interval E2, a grey-silty lithosome has been recognized, corresponding to a low-energy sedimentary environment related to a sandy shoal. In this lithosome, marchantiopsid-rich beds extending up to tens of square metres have been preserved. The plant association consists of well-developed mature gametophytes of complex thallose liverworts with thalli radial, dichotomous branched, rosette forming, prostrate and, in most cases, with gemmae cups located on their dorsal surface. The occurrence of scattered individuals forming distinct rosettes that, in many cases, are interlocked or interwoven and the loose arrangement of the association, along with sedimentological characteristics, allows us to interpret these liverworts-rich beds as monospecific colonization mats at early stages of colonization, in which marchantiopsids played the role of pioneers. In addition, the high proportion of gemmiferous individuals provides significant information on the environmental conditions and the effectiveness of colonization by asexual diaspores. Specimens have been assigned to family Marchantiaceae owing to their morphological features. Although liverworts colonization mats have been mentioned from the Albian of Antarctica, no fossil record of these existed at lower palaeolatitudes or in the Upper Aptian–Lower Albian. In addition, no previous record of clonal communities of plants derived from gemmae exists. Due to the latter, the occurrence of the studied colonization mats becomes of prime importance Depto. de Geodinámica, Estratigrafía y Paleontología Fac. de Ciencias Geológicas TRUE pub |
format |
Article in Journal/Newspaper |
author |
Diéguez, Carmen Rodríguez López, Juan Pedro Meléndez Hevia, María Nieves |
author_facet |
Diéguez, Carmen Rodríguez López, Juan Pedro Meléndez Hevia, María Nieves |
author_sort |
Diéguez, Carmen |
title |
Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) |
title_short |
Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) |
title_full |
Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) |
title_fullStr |
Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) |
title_full_unstemmed |
Marchantiopsid colonization mats from the Upper Aptian–Lower Albian of the Escucha Formation (Oliete Sub-Basin, Iberian Ranges, eastern Spain) |
title_sort |
marchantiopsid colonization mats from the upper aptian–lower albian of the escucha formation (oliete sub-basin, iberian ranges, eastern spain) |
publisher |
Elsevier |
publishDate |
2007 |
url |
https://hdl.handle.net/20.500.14352/87945 https://doi.org/10.1016/j.crpv.2007.09.022 https://www.sciencedirect.com/science/article/pii/S1631068307001182?via%3Dihub |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
CGL2005–07445-C03–03 doi:10.1016/j.crpv.2007.09.022 1777-571X 1631-0683 https://www.sciencedirect.com/science/article/pii/S1631068307001182?via%3Dihub https://hdl.handle.net/20.500.14352/87945 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International open access http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/20.500.14352/8794510.1016/j.crpv.2007.09.022 |
container_title |
Comptes Rendus Palevol |
container_volume |
6 |
container_issue |
6-7 |
container_start_page |
413 |
op_container_end_page |
422 |
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1781066942763761664 |