Meswa Bridge locality 36, Kenia


Fundort: Meswa Bridge locality 36, Kenia, , Kenia
Taxon: Proconsul meswae aus der Familie Proconsulidae
Fossilien und Beschreibung der Fundstelle:
Macrofossils,mesofossils, Pickford and Andrews provide radiometric dates for the Muhoroni Agglomerate: 23.5 and 23.6 Ma which they say is Miocene. Harland et al. 1989 place those ages in the late Oligocene., Muhoroni Agglomerates are volcanic deposits near a vent above base level. Contemporary channel filled with unbedded partly calcified sandstone. "The Muhoroni Agglomerates are fine to coarse pyroclastic sands with gneissic cobbles and boulders up to 1 m in size, into which ephemeral channels were cut... The deposits range from off-white to yellow and pale brown, and they are at least 10 m in thickness and weakly bedded... Fossil root casts, leaves, and wood are common in the sediments, but vertebrate remains are rare... The channel [yielding the fossils] was filled with unbedded, partially calcified sandstone..." (Harrison and Andrews 2009)
Geschätztes Alter
der Fundstelle:
zwischen 23,03 und 28,1 Millionen Jahre aus der Muhroni Agglomerates Formation in Kenia
Geologie, Sratigraphie Chattian / Chattian / Muhroni Agglomerates
Koordinaten: 0° 8 ' 13 '' N, 35° 12 ' 20 '' O

Literatur

T. Harrison, P. Andrews 2009, The anatomy and systematic position of the early Miocene proconsulid from Meswa Bridge, Kenya. Journal of Human Evolution. 56:5, p. 479 - 496, DOI: 10.1016/j.jhevol.2009.02.005

Systematik