...
Post A Reply
my profile
|
directory
login
|
register
|
search
|
faq
|
forum home
»
EgyptSearch Forums
»
Deshret
»
Some interesting articles
» Post A Reply
Post A Reply
Login Name:
Password:
Message Icon:
Message:
HTML is not enabled.
UBB Code™ is enabled.
[QUOTE]Originally posted by DD'eDeN: [QB] Possible link of H erectus to Lake Turkana and coastal migrations (Java/Dmanisi-Georgia 1.8ma)? - - - Freshwater stingrays from the Plio/Pleistocene of the Turkana Basin, Kenya and Ethiopia Craig S Feibel 2007 Lethaia 26:359-366 doi 10.1111/j.1502-3931.1993.tb01542.x The fossil freshwater stingray from the Turkana Basin of Kenya & Ethiopia is re-described & re-assigned to Dasyatis africana on the basis of extensive new collections. The ray apparently evolved into an endemic freshwater species, derived from a stock which entered the Turkana Basin from the Indian Ocean at c 1.9 Ma. At that time, the ancestral Omo River system flowed through a major lake, and exited to the SE. A fluvial corridor (the Turkana River) connected the Turkana Basin with the Indian Ocean. Once established in the basin, the rays flourished & persisted for > 1/2 My. Their extinction has been placed subsequent to 1.3 Ma, it likely reflects the changing environmental & tectonic conditions, recorded in subsequent strata. The fluvial corridor which formed the route of migration into the Turkana Basin has important implications for modern & past African bio-geography. [/QB][/QUOTE]
Instant Graemlins
Instant UBB Code™
What is UBB Code™?
Options
Disable Graemlins in this post.
*** Click here to review this topic. ***
Contact Us
|
EgyptSearch!
(c) 2015 EgyptSearch.com
Powered by UBB.classic™ 6.7.3