Data · dataset · 2000
Marine palynomorph abundance estimates of sediment core CRP-2A (Fig. 2)
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A diverse assemblage of marine palynomorphs was recovered from the Oligocene - Miocene section of CRP-2/2A.
Description
Most of the assemblage is composed of previously unrecognised species. Three distinct groups of marine palynomorph were recognised: (1) prasinophytes, mainly Cymatiosphaera, (2) acritarchs, mainly Leiosphaeridia and Sigmopollis although Leiofusa is an important component of the bottom half of the hole, and (3) dinoflagellate cysts.
About 27 species of in situ dinoflagellate cysts were recorded, of which seven apparently undescribed species of Lejeunecysta form a prominent component. Reworked specimens of several species of the Paleogene Transantarctic Flora occur in CRP-2/2A sediments. Several abundance peaks of reworked taxa from the Transantarctic Flora are recorded.
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Three marine palynomorph zones were recognised (MP3, MP2, MP1), considered to be early Oligocene, late Oligocene, and late Oligocene/early Miocene in age respectively. Samples from the Quaternary and Pliocene part of CRP-2/2A were also examined. These proved either barren or yielded very sparse low diversity floras.
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- Repository landing page doi.pangaea.de/10.1594/PANGAEA.545144 ↗
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- DOI doi.org/10.1594/pangaea.545144 ↗
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Topics
- Inferred from text
- Geology 72%
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| DataCite | 10.1594/pangaea.545144 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · DataCite | connector:datacite@1.0.0 | /data/attributes/rightsList |
| concepts[field].anzsrc:group:3705 | enrichment · DataCite | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| description | source · DataCite | connector:datacite@1.0.0 | /data/attributes/descriptions |
| license | source · DataCite | connector:datacite@1.0.0 | /data/attributes/rightsList |
| publication_date | source · DataCite | connector:datacite@1.0.0 | /data/attributes/dates |
| spatial | source · DataCite | connector:datacite@1.0.0 | |
| title | source · DataCite | connector:datacite@1.0.0 | /data/attributes/titles/0/title |