1963C, Helden LXXV borehole: Late Paleocene - Early Eocene, Netherlands
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Polypodiopsida
- Salviniales
- Salviniaceae
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Salvinia sp. microspore
Adanson 1763
|
1 specimen | |||||||||
| Salviniaceous massulae (Triletes? exiguus) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Netherlands | State/province: | Limburg | County: | Helden |
| Coordinates: | 51.3° North, 6.0° East (view map) | ||||
| Paleocoordinates: | 41.9° North, 12.8° East (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Paleogene | Epoch: | Paleocene - Eocene |
| Stage: | Thanetian - Ypresian | 10 m.y. bin: | Cenozoic 1 - Cenozoic 2 |
| Key time interval: | Late Paleocene - Early Eocene | ||
| Age range of interval: | 59.24 - 48.07 m.y. ago |
Stratigraphy
| Formation: | Tienen | ||||
| Stratigraphy comments: This locality is either upper Palaeocene or Palaeocene/Eocene boundary. Downhole of this locality are marine limestones assigned to the Early Palaocene (Montain). The Montain has now been formalized as the Swalmen Member of the Landen Formation. |
Lithology and environment
| Primary lithology: | unlithified claystone |
| Lithology description: The borehole is derived from lithologies that include grey, variegated, and sandy clays, fine grained sands, and browncoals (i.e. with 'continental' or 'limnic' aspect). | |
| Environment: | terrestrial indet. |
| Glacial or sequence phase: | transgressive |
Taphonomy
| Modes of preservation: | original sporopollenin |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection methods: | core,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: This collection has salviniaceous massulae (Triletes? exiguus), 1 specimen only. | |
Metadata
| Also known as: | Helden-75 | ||
| Database number: | 34456 | ||
| Authorizer: | R. Lupia | Enterer: | B. Wilborn |
| Modifier: | G. Varnham | Research group: | paleobotany |
| Created: | 2003-09-01 13:32:08 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-09-01 13:32:08 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 8993. | D. J. Batten and M. E. Collinson. 2001. Revision of species of Minerisporites, Azolla and associated plant microfossils from deposits of the Upper Palaeocene and Palaeocene/Eocene transition in the Netherlands, Belgium and the USA. Review of Palaeobotany and Palynology 115:1-32 [R. Lupia/B. Wilborn/B. Wilborn] |