Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego
Fine-grained sandstones and siltstones of Late Cretaceous to Eocene age in Antarctica and Tierra del Fuego yield an association of well-known shallow-marine trace fossils. Among them stick out complex spreite burrows, which are formally described as Euflabella n. igen. and subdivided into five ichno...
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Language: | English |
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Cambridge University Press (CUP)
2013
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Online Access: | http://dx.doi.org/10.1666/12-088.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000056869 |
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crcambridgeupr:10.1666/12-088.1 2023-06-11T04:05:10+02:00 Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego Olivero, Eduardo B. Cabrera, Maria I. López 2013 http://dx.doi.org/10.1666/12-088.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000056869 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 87, issue 3, page 413-426 ISSN 0022-3360 1937-2337 Paleontology journal-article 2013 crcambridgeupr https://doi.org/10.1666/12-088.1 2023-05-01T18:19:36Z Fine-grained sandstones and siltstones of Late Cretaceous to Eocene age in Antarctica and Tierra del Fuego yield an association of well-known shallow-marine trace fossils. Among them stick out complex spreite burrows, which are formally described as Euflabella n. igen. and subdivided into five ichnospecies with different burrowing programs and occurrences. As shown by concentrations of diatoms, radiolarians, foraminifers, and calcispheres in particular backfill lamellae, the unknown trace makers lived on fresh detritus from the surface as well as the burrowed sediment. In some ichnospecies, vertical sections show that the spreite is three-dimensionally meandering in upward direction and that upper laminae tend to rework the upper backfill of the folds underneath. This could mean a second harvest, after cultivated bacteria had time to ferment refractory sediment components, which the metazoan trace maker had been unable to digest before. Article in Journal/Newspaper Antarc* Antarctica Tierra del Fuego Cambridge University Press (via Crossref) Burrows ENVELOPE(163.650,163.650,-74.300,-74.300) Journal of Paleontology 87 3 413 426 |
institution |
Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Paleontology |
spellingShingle |
Paleontology Olivero, Eduardo B. Cabrera, Maria I. López Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego |
topic_facet |
Paleontology |
description |
Fine-grained sandstones and siltstones of Late Cretaceous to Eocene age in Antarctica and Tierra del Fuego yield an association of well-known shallow-marine trace fossils. Among them stick out complex spreite burrows, which are formally described as Euflabella n. igen. and subdivided into five ichnospecies with different burrowing programs and occurrences. As shown by concentrations of diatoms, radiolarians, foraminifers, and calcispheres in particular backfill lamellae, the unknown trace makers lived on fresh detritus from the surface as well as the burrowed sediment. In some ichnospecies, vertical sections show that the spreite is three-dimensionally meandering in upward direction and that upper laminae tend to rework the upper backfill of the folds underneath. This could mean a second harvest, after cultivated bacteria had time to ferment refractory sediment components, which the metazoan trace maker had been unable to digest before. |
format |
Article in Journal/Newspaper |
author |
Olivero, Eduardo B. Cabrera, Maria I. López |
author_facet |
Olivero, Eduardo B. Cabrera, Maria I. López |
author_sort |
Olivero, Eduardo B. |
title |
Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego |
title_short |
Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego |
title_full |
Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego |
title_fullStr |
Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego |
title_full_unstemmed |
Euflabella N. Igen.: Complex Horizontal Spreite Burrows in Upper Cretaceous–Paleogene Shallow-Marine Sandstones of Antarctica and Tierra del Fuego |
title_sort |
euflabella n. igen.: complex horizontal spreite burrows in upper cretaceous–paleogene shallow-marine sandstones of antarctica and tierra del fuego |
publisher |
Cambridge University Press (CUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1666/12-088.1 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000056869 |
long_lat |
ENVELOPE(163.650,163.650,-74.300,-74.300) |
geographic |
Burrows |
geographic_facet |
Burrows |
genre |
Antarc* Antarctica Tierra del Fuego |
genre_facet |
Antarc* Antarctica Tierra del Fuego |
op_source |
Journal of Paleontology volume 87, issue 3, page 413-426 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1666/12-088.1 |
container_title |
Journal of Paleontology |
container_volume |
87 |
container_issue |
3 |
container_start_page |
413 |
op_container_end_page |
426 |
_version_ |
1768372470630318080 |