Ostracods in the Palaeozoic?
The attribute traditionally used to recognise the occurrence of ostracods in the Palaeozoic stratigraphic record has in essence been the presence of a bivalved arthropod carapace of small size. Discoveries offering unparalleled insight into the soft part paleobiology of tiny bivalved Palaeozoic arth...
| Main Author: | |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2008
|
| _version_ | 1826264422082936832 |
|---|---|
| author | Siveter, D |
| author_facet | Siveter, D |
| author_sort | Siveter, D |
| collection | OXFORD |
| description | The attribute traditionally used to recognise the occurrence of ostracods in the Palaeozoic stratigraphic record has in essence been the presence of a bivalved arthropod carapace of small size. Discoveries offering unparalleled insight into the soft part paleobiology of tiny bivalved Palaeozoic arthropods, when taken together with the notion that a bivalved carapace is a convergent phenomenon within the Arthropoda, have in the last decade revolutionised our understanding of the nature and stratigraphic record of the major groups of ostracod present in the Palaeozoic. Evidence from appendages and other soft parts is crucial in determining systematic affinity. Evidence from the soft part anatomy of bradoriids and phosphatocopids has undermined the record of ostracods in the Cambrian, but molecular and fossil evidence implies that they may be present at that time. In the absence of soft parts the case that leperditicopids (Ordovician-Devonian) are ostracods remains uncertain. Myodocopes certainly occur in the Palaeozoic, as determined on a wealth of new palaeobiological evidence. As yet, supposed Palaeozoic podocopes are represented in practical terms only by fossil shells. The systematic affinity of palaeocopes - a major group in the Palaeozoic and hitherto recognised as a coherent taxon - remains enigmatic, and they may turn out to represent an artificial grouping. |
| first_indexed | 2024-03-06T20:07:32Z |
| format | Journal article |
| id | oxford-uuid:2966d710-26f5-44d6-b6c4-b7b1cfcaeae7 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:07:32Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:2966d710-26f5-44d6-b6c4-b7b1cfcaeae72022-03-26T12:18:55ZOstracods in the Palaeozoic?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2966d710-26f5-44d6-b6c4-b7b1cfcaeae7EnglishSymplectic Elements at Oxford2008Siveter, DThe attribute traditionally used to recognise the occurrence of ostracods in the Palaeozoic stratigraphic record has in essence been the presence of a bivalved arthropod carapace of small size. Discoveries offering unparalleled insight into the soft part paleobiology of tiny bivalved Palaeozoic arthropods, when taken together with the notion that a bivalved carapace is a convergent phenomenon within the Arthropoda, have in the last decade revolutionised our understanding of the nature and stratigraphic record of the major groups of ostracod present in the Palaeozoic. Evidence from appendages and other soft parts is crucial in determining systematic affinity. Evidence from the soft part anatomy of bradoriids and phosphatocopids has undermined the record of ostracods in the Cambrian, but molecular and fossil evidence implies that they may be present at that time. In the absence of soft parts the case that leperditicopids (Ordovician-Devonian) are ostracods remains uncertain. Myodocopes certainly occur in the Palaeozoic, as determined on a wealth of new palaeobiological evidence. As yet, supposed Palaeozoic podocopes are represented in practical terms only by fossil shells. The systematic affinity of palaeocopes - a major group in the Palaeozoic and hitherto recognised as a coherent taxon - remains enigmatic, and they may turn out to represent an artificial grouping. |
| spellingShingle | Siveter, D Ostracods in the Palaeozoic? |
| title | Ostracods in the Palaeozoic? |
| title_full | Ostracods in the Palaeozoic? |
| title_fullStr | Ostracods in the Palaeozoic? |
| title_full_unstemmed | Ostracods in the Palaeozoic? |
| title_short | Ostracods in the Palaeozoic? |
| title_sort | ostracods in the palaeozoic |
| work_keys_str_mv | AT siveterd ostracodsinthepalaeozoic |