A fossilized marble run

the peculiar taphonomy of Ordovician diploporitan blastozoans from Sweden

Christian Klug, Alexander Pohle, Steffen Kiel, Björn Kröger

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Diploporitans had subspherical thecae, which usually were attached to hard substrates either directly with an attachment disc at the base of their theca or with a stem and holdfast. After the death of the animal, isolated thecae were easily transported by currents over more or less consolidated sediment. We describe a case where 13 diploporitan thecae were trapped in the remains of a cephalopod with an orthoconic conch. Most of the thecae show a perfect fit and are size-sorted within the conch or siphuncle. We discuss the taphonomic processes that might have been involved in this rare kind of alignment and sorting.

Original languageEnglish
JournalSwiss Journal of Palaeontology
Volume137
Issue number2
Pages (from-to)405–411
Number of pages7
ISSN1664-2376
DOIs
Publication statusPublished - Dec 2018
MoE publication typeA1 Journal article-refereed

Fields of Science

  • Diploporita
  • Rhombifera
  • Endocerida
  • Ordovician
  • Taphonomy
  • Alignment
  • 1171 Geosciences

Cite this

Klug, Christian ; Pohle, Alexander ; Kiel, Steffen ; Kröger, Björn. / A fossilized marble run : the peculiar taphonomy of Ordovician diploporitan blastozoans from Sweden. In: Swiss Journal of Palaeontology. 2018 ; Vol. 137, No. 2. pp. 405–411.
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A fossilized marble run : the peculiar taphonomy of Ordovician diploporitan blastozoans from Sweden. / Klug, Christian; Pohle, Alexander; Kiel, Steffen; Kröger, Björn.

In: Swiss Journal of Palaeontology, Vol. 137, No. 2, 12.2018, p. 405–411.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Kröger, Björn

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N2 - Diploporitans had subspherical thecae, which usually were attached to hard substrates either directly with an attachment disc at the base of their theca or with a stem and holdfast. After the death of the animal, isolated thecae were easily transported by currents over more or less consolidated sediment. We describe a case where 13 diploporitan thecae were trapped in the remains of a cephalopod with an orthoconic conch. Most of the thecae show a perfect fit and are size-sorted within the conch or siphuncle. We discuss the taphonomic processes that might have been involved in this rare kind of alignment and sorting.

AB - Diploporitans had subspherical thecae, which usually were attached to hard substrates either directly with an attachment disc at the base of their theca or with a stem and holdfast. After the death of the animal, isolated thecae were easily transported by currents over more or less consolidated sediment. We describe a case where 13 diploporitan thecae were trapped in the remains of a cephalopod with an orthoconic conch. Most of the thecae show a perfect fit and are size-sorted within the conch or siphuncle. We discuss the taphonomic processes that might have been involved in this rare kind of alignment and sorting.

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KW - Endocerida

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