Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks
The Early Paleozoic oceans were generally characterized by short trophic chains and simple ecological tiering dominated by suspension-feeding organisms. However, the Great Ordovician Biodiversification Event (GOBE) was responsible for the complexification of food webs, increasing depth and diversity...
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OICC Press
2021-06-01
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| Series: | Geoconservation Research |
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| Online Access: | http://gcr.khuisf.ac.ir/article_682138_51526de60b4f62e5b2fd381a5cb274ae.pdf |
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| author | Carlos Neto de Carvalho Andrea Baucon Ivan Cortijo Soren Jensen Jose Maria Barrera Javier Lopez Caballero |
| author_facet | Carlos Neto de Carvalho Andrea Baucon Ivan Cortijo Soren Jensen Jose Maria Barrera Javier Lopez Caballero |
| author_sort | Carlos Neto de Carvalho |
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| description | The Early Paleozoic oceans were generally characterized by short trophic chains and simple ecological tiering dominated by suspension-feeding organisms. However, the Great Ordovician Biodiversification Event (GOBE) was responsible for the complexification of food webs, increasing depth and diversity of substrate ecospace utilization and increasing benthic competition for resources near the water-substrate interface. Daedalus is an enigmatic trace fossil that precedes this period of nearshore innovation and its disappearance is probably related to the escalation in tiering complexity, especially among benthic surficial feeders, that may have cut access to their main food sources. Daedalus producers were responsible for the occupation of some of the earliest deep substrate tiers, probably feeding from particulate organics and meiofauna using complex architectures for resource exploitation. They were responsible for characteristic ichnofabrics that can be found, especially in Lower-to-Middle Ordovician sandstones, in the “Armorican Quartzite” and similar nearshore facies around Gondwana. Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geopark show several geosites where the best-preserved forms of Daedalus can be found and where its crowded ichnofabrics can be followed in large-scale exposures. Indeed, these are mega-ichnosites of international paleontological relevance for understanding behavior and ecospace utilization of a characteristic trace fossil during the GOBE. This paleoecological significance meant that Daedalus became a symbol for a cross-border Interreg Project that connects the two UNESCO geoparks. The Armorican Quartzite Route is an 800 km-long road following the main geological structures and promoting sustainable tourism attractions along the way. The Bridge over the Armorican Quartzite has the goal of fostering sustainable development through common scientific and education tools, raising awareness of the GOBE as one of the most important events of biodiversification in the Earth history and a key element of the geological heritage of both UNESCO Geoparks. |
| format | Article |
| id | doaj-art-789daaf8246b4077a718c40f96732a65 |
| institution | Kabale University |
| issn | 2645-4661 2588-7343 |
| language | English |
| publishDate | 2021-06-01 |
| publisher | OICC Press |
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| spelling | doaj-art-789daaf8246b4077a718c40f96732a652025-02-03T09:59:52ZengOICC PressGeoconservation Research2645-46612588-73432021-06-0141809210.30486/gcr.2021.1918476.1077682138Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global GeoparksCarlos Neto de Carvalho0Andrea Baucon1Ivan Cortijo2Soren Jensen3Jose Maria Barrera4Javier Lopez Caballero5Naturtejo UNESCO Global Geopark. Geology Office of the Municipality of Idanha-a-Nova, Centro Cultural Raiano. Avenida Joaquim Morão, 6060-101, Idanha-a-Nova, PortugalDISTAV, University of Genova, ItalyVilluercas-Ibores-Jara UNESCO Global Geopark. Diputación de Cáceres. C/ Pintores nº 10, 10003 Cáceres, SpainÁrea de Paleontología, Facultad de Ciencias, Universidad de Extremadura, 06006 Badajoz, Spain.Villuercas-Ibores-Jara UNESCO Global Geopark. Diputación de Cáceres. C/ Pintores nº 10, 10003 Cáceres, SpainVilluercas-Ibores-Jara UNESCO Global Geopark. Diputación de Cáceres. C/ Pintores nº 10, 10003 Cáceres, SpainThe Early Paleozoic oceans were generally characterized by short trophic chains and simple ecological tiering dominated by suspension-feeding organisms. However, the Great Ordovician Biodiversification Event (GOBE) was responsible for the complexification of food webs, increasing depth and diversity of substrate ecospace utilization and increasing benthic competition for resources near the water-substrate interface. Daedalus is an enigmatic trace fossil that precedes this period of nearshore innovation and its disappearance is probably related to the escalation in tiering complexity, especially among benthic surficial feeders, that may have cut access to their main food sources. Daedalus producers were responsible for the occupation of some of the earliest deep substrate tiers, probably feeding from particulate organics and meiofauna using complex architectures for resource exploitation. They were responsible for characteristic ichnofabrics that can be found, especially in Lower-to-Middle Ordovician sandstones, in the “Armorican Quartzite” and similar nearshore facies around Gondwana. Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geopark show several geosites where the best-preserved forms of Daedalus can be found and where its crowded ichnofabrics can be followed in large-scale exposures. Indeed, these are mega-ichnosites of international paleontological relevance for understanding behavior and ecospace utilization of a characteristic trace fossil during the GOBE. This paleoecological significance meant that Daedalus became a symbol for a cross-border Interreg Project that connects the two UNESCO geoparks. The Armorican Quartzite Route is an 800 km-long road following the main geological structures and promoting sustainable tourism attractions along the way. The Bridge over the Armorican Quartzite has the goal of fostering sustainable development through common scientific and education tools, raising awareness of the GOBE as one of the most important events of biodiversification in the Earth history and a key element of the geological heritage of both UNESCO Geoparks.http://gcr.khuisf.ac.ir/article_682138_51526de60b4f62e5b2fd381a5cb274ae.pdftrace fossils, daedalus ichnofabric, “armorican quartzite”, tourism route, lower ordovician, central iberian zonecross border cooperation |
| spellingShingle | Carlos Neto de Carvalho Andrea Baucon Ivan Cortijo Soren Jensen Jose Maria Barrera Javier Lopez Caballero Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks Geoconservation Research trace fossils, daedalus ichnofabric, “armorican quartzite”, tourism route, lower ordovician, central iberian zone cross border cooperation |
| title | Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks |
| title_full | Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks |
| title_fullStr | Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks |
| title_full_unstemmed | Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks |
| title_short | Daedalus Mega-ichnosites: The Armorican Quartzite Bridge between Villuercas-Ibores-Jara and Naturtejo UNESCO Global Geoparks |
| title_sort | daedalus mega ichnosites the armorican quartzite bridge between villuercas ibores jara and naturtejo unesco global geoparks |
| topic | trace fossils, daedalus ichnofabric, “armorican quartzite”, tourism route, lower ordovician, central iberian zone cross border cooperation |
| url | http://gcr.khuisf.ac.ir/article_682138_51526de60b4f62e5b2fd381a5cb274ae.pdf |
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