Muhoroni Agglomerates, Meswa Bridge (Miocene of Kenya)

Where: Kenya (0.1° S, 35.2° E)

• Paleocoordinates: 6.0° S, 34.6° E (Wright 2013)

When: Muhroni Agglomerates Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

Environment/lithology: "channel"; massive, volcaniclastic, yellow, calcareous sandstone

• Sediment source from volcanic activity close to a vent above base level, likely from the initial throat-widening phases of the vent
• 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)

Size classes: macrofossils, mesofossils

Collected by M. Pickford, P. Andrews, T. Harrison in 1978 - 1980

Collection methods: quarrying,

Primary reference: M. R. Borths and N. J. Stevens. 2019. Simbakubwa kutokaafrika, gen. et sp. nov. (Hyainailourinae, Hyaenodonta, ‘Creodonta,’ Mammalia), a gigantic carnivore from the earliest Miocene of Kenya. Journal of Vertebrate Paleontology 39(1):e1570222 [G. Lloyd/G. Lloyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 220704: authorized by Graeme Lloyd, entered by Graeme Lloyd on 13.06.2021

Creative Commons license: CC0 (CC0)

Taxonomic list

• wood and leaves also mentioned
Mammalia
 Creodonta - Hyainailouridae
Simbakubwa kutokaafrika n. gen. n. sp.
Simbakubwa kutokaafrika n. gen. n. sp. Borths and Stevens 2019 creodont
KNM-ME 20A; KNM-ME 20B; KNM-ME 20AI; KNM-ME 12; KNM-ME 23; KNM-ME 22; KNM-ME 13; KNM-ME 20P; KNM-ME 20 AG; KNM-ME 20 AH