Anjohingidrobe Cave, Madagaskar
| Fundort: | Anjohingidrobe Cave, Madagaskar, Beanka, Madagaskar | |
|---|---|---|
| Taxon: | Archaeolemur edwardsi aus der Familie Archaeolemuridae | |
| Fossilien und Beschreibung der Fundstelle: | ||
| Macrofossils,mesofossils,microfossils, Because the cave is predominantly vertical, with no large areas of horizontal or near-horizontal floor, it was necessary to distinguish bone accumulations in and near the cave by separate sublocation numbers, rather than a grid reference. These are noted in Figure 2, and Table 1 summarizes the characteristics of each sublocation. ABG-1 is the sediment layer immediately east of the cave entrance. Where this rock wall enfolds to produce a small alcove, surface material and sediments were sublocated as AGB-1A. Proceeding into the main cave, a small ledge on the east wall inside is covered with a slope of fine debris (ABG-2). Directly below on the cave floor, a dead-end chamber descends farther under the east wall and is partially filled with soft clay sediment (AGB-3). Returning to the entrance, small pockets of bone-rich debris and sediment have accumulated at the base of the 3.8 m entrance drop, in a series of steps downward (AGB-4, AGB-5, and AGB-6). Immediately below AGB-5 and AGB-6 on the southward slope going back into the cave is a larger area of uneven topography, composed of large stones interspersed with bone-rich debris and sediment. This is the very productive sublocation AGB-7. Beneath the uneven floor of the cave near the entrance, there is a small chamber containing sediments with bones (AGB-8). On the opposite (west) wall of the cave, the cave floor descends to its lowest depth below the entrance at −7 m. There is a lag concentrate of darkly stained bones and fine limestone chips in this deepest pocket, in places lightly cemented into a breccia (AGB-9). Note: The authors do not distinguish the various specimens per sublocation, so they are all included in the same collection PBDB entry | ||
| Geschätztes Alter der Fundstelle: |
zwischen 0, und 0,0117 Millionen Jahre aus der Formation in Madagaskar | |
| Geologie, Sratigraphie | Holocene / Holocene / | |
| Koordinaten: | 17° 53 ' 60 '' S, 44° 29 ' 0 '' O | |
|
Die Daten sowie die folgende Systematik stammen aus der Paleobiology Database, Lizenz
|
||
LiteraturD. A. Burney, H. Andriamialison, R. A. Andrianaivoarivelo, S. Bourne, B. E. Crowley, E. J. de Boer, L. R. Godfrey, S. M. Goodman, C. Griffiths, O. Griffiths, J. P. Hume, W. G. Joyce, W. L. Jungers, S. Marciniak, G. J. Middleton, K. M. Muldoon, E. Noromalala, V. R. Pérez, G. H. Perry, R. 2019, Subfossil lemur discoveries from the Beanka Protected Area in western Madagascar. Quaternary Research. , p. 1 - 17, DOI: 10.1017/qua.2019.54 |
||
Systematik |