Writing on the mud: a Patagonian tale by sea pens and oysters

Sea pens are anthozoans belonging to the Order Pennatulacea with a wide geographic distribution but with a scarce fossil record. They are the only octocorals adapted to live in soft sediments. Unlike other octocorals, they have an axial polyp that has a rigid, calcareous axis and a peduncle. On the...

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Detalles Bibliográficos
Autor principal: Casadio, Silvio A.
Formato: Objeto de conferencia Resumen
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Naturales
Paleontología
Patagonia
Sea pens
Oysters
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/16737
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-16737
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Paleontología
Patagonia
Sea pens
Oysters
spellingShingle Ciencias Naturales
Paleontología
Patagonia
Sea pens
Oysters
Casadio, Silvio A.
Writing on the mud: a Patagonian tale by sea pens and oysters
topic_facet Ciencias Naturales
Paleontología
Patagonia
Sea pens
Oysters
description Sea pens are anthozoans belonging to the Order Pennatulacea with a wide geographic distribution but with a scarce fossil record. They are the only octocorals adapted to live in soft sediments. Unlike other octocorals, they have an axial polyp that has a rigid, calcareous axis and a peduncle. On the other hand, oysters are stable islands of hard substrate in the otherwise unstable soft muddy environment of the sea bottom. Here I present a comparison between a recent shoreface environment recorded in Bahía San Blas (Buenos Aires Province) with a conspicuous population of sea pens and oyster reefs. Also very fine-grained silty sandstones within the lower part of the Chenque Formation (early Miocene) at Rada Tilly (Chubut Province) containing hundreds of sea pen rods and oysters reefs. The results indicate that although actualism may be in dispute it still holds true as the cornerstone of sedimentology and taphonomy.
format Objeto de conferencia
Resumen
author Casadio, Silvio A.
author_facet Casadio, Silvio A.
author_sort Casadio, Silvio A.
title Writing on the mud: a Patagonian tale by sea pens and oysters
title_short Writing on the mud: a Patagonian tale by sea pens and oysters
title_full Writing on the mud: a Patagonian tale by sea pens and oysters
title_fullStr Writing on the mud: a Patagonian tale by sea pens and oysters
title_full_unstemmed Writing on the mud: a Patagonian tale by sea pens and oysters
title_sort writing on the mud: a patagonian tale by sea pens and oysters
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/16737
work_keys_str_mv AT casadiosilvioa writingonthemudapatagoniantalebyseapensandoysters
bdutipo_str Repositorios
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