An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.

An exceptionally preserved new ostracod crustacean from the Silurian of Herefordshire, UK, represents only the third fully documented Palaeozoic ostracod with soft-part preservation. Appendages, gills, gut system, lateral compound eyes and even a medial eye with a Bellonci organ are preserved, allow...

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Những tác giả chính: Siveter, D, Briggs, D, Sutton, MD
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2010
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author Siveter, D
Briggs, D
Siveter, D
Sutton, MD
author_facet Siveter, D
Briggs, D
Siveter, D
Sutton, MD
author_sort Siveter, D
collection OXFORD
description An exceptionally preserved new ostracod crustacean from the Silurian of Herefordshire, UK, represents only the third fully documented Palaeozoic ostracod with soft-part preservation. Appendages, gills, gut system, lateral compound eyes and even a medial eye with a Bellonci organ are preserved, allowing assignment of the fossil to a new genus and species of cylindroleberidid myodocope (Myodocopida, Cylindroleberididae). The Bellonci organ is recorded for the first time in fossil ostracods. The find also represents a rare occurrence of gills in fossil ostracods and confirms the earliest direct evidence of a respiratory-cum-circulatory system in the group. The species demonstrates remarkably conserved morphology within myodocopes over a period of 425 Myr. Its shell morphology more closely resembles several families of myodocopes other than the Cylindroleberididae, especially the Cypridinidae and Sarsiellidae, thus questioning the utility of the carapace alone in establishing the affinity of fossil ostracods.
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spelling oxford-uuid:583a3e31-b077-42a2-afe8-0f7fc297c33d2022-03-26T17:01:55ZAn exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:583a3e31-b077-42a2-afe8-0f7fc297c33dEnglishSymplectic Elements at Oxford2010Siveter, DBriggs, DSiveter, DSutton, MDAn exceptionally preserved new ostracod crustacean from the Silurian of Herefordshire, UK, represents only the third fully documented Palaeozoic ostracod with soft-part preservation. Appendages, gills, gut system, lateral compound eyes and even a medial eye with a Bellonci organ are preserved, allowing assignment of the fossil to a new genus and species of cylindroleberidid myodocope (Myodocopida, Cylindroleberididae). The Bellonci organ is recorded for the first time in fossil ostracods. The find also represents a rare occurrence of gills in fossil ostracods and confirms the earliest direct evidence of a respiratory-cum-circulatory system in the group. The species demonstrates remarkably conserved morphology within myodocopes over a period of 425 Myr. Its shell morphology more closely resembles several families of myodocopes other than the Cylindroleberididae, especially the Cypridinidae and Sarsiellidae, thus questioning the utility of the carapace alone in establishing the affinity of fossil ostracods.
spellingShingle Siveter, D
Briggs, D
Siveter, D
Sutton, MD
An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.
title An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.
title_full An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.
title_fullStr An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.
title_full_unstemmed An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.
title_short An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK.
title_sort exceptionally preserved myodocopid ostracod from the silurian of herefordshire uk
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