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| Titel: |
Mammalian Taphonomy and Palaeoecology of the Bembridge limestone formation (late Eocene, S. England) |
| Auteur: |
Hooker, Jeremy J. |
| Verschenen in: |
Historical biology |
| Paginering: | Jaargang 8 (1994) nr. 1-4 pagina's 49-69 |
| Jaar: |
1994-10 |
| Inhoud: |
The palaeoecology of a sequence of five closely spaced mammalian assemblages in the English Late Eocene Bembridge Limestone Formation is studied using cladistic, seriation and ecological diversity methods, after assessing the collecting and taphonomic biases. Analysis of this sequence is important as it is temporally close to the terminal Eocene global cooling event. It is concluded that the assemblages probably reflect quite closely the species composition of the original living communities and that they indicate habitats ranging from an open wooded environment to dense forest. The oldest assemblage (limestone facies) indicates open wooded habitat and contains earliest occurrences of certain taxa in the English Eocene; these represent northward dispersal from southwestern Europe in response to changing climate. The more forested habitats occur higher in the sequence and are characterised by 'Lazarus' taxa, suggesting reversion to earlier existing environments. Small scale changes appear to relate to local events, whereas more major ones may result from global climate change. Certain pairs of closely related species are segregated in different assemblages which are habitat distinctive, a conclusion not available from their morphologies. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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