-Gorilla 8 or 7 Ma followed the incipient northern Rift (EARS E.Afr.Rift System) -> Afar: Gorilla
fossil subspecies Praeanthropus afarensis->boisei,
-Homo & Pan split 5.33 Ma, when the Zanclean mega-flood opened the Red Sea into the Gulf (Francesca Mansfield)?
-Gorilla 8 or 7 Ma followed the incipient northern Rift (EARS E.Afr.Rift System) ->Afar: Gorilla
fossil subspecies Praeanthropus afarensis->boisei,
-Homo & Pan split 5.33 Ma, when the Zanclean mega-flood opened the Red Sea into the Gulf (Francesca Mansfield)?
I still believe it was later. Though...
The 2 populations could have become separate & distinct without them necessarily
becoming different species. They could have cross bred, at least on occasion.
Personally, I think this had to be the case. Effectively what I argue is all the separation
and distinction we see in the case on Neanderthals, Denisovans and the like was
merely a continuation of the exact same process that was occurring for the entire
history of our genus, and then some.
In nature, if and when you establish that something can happen you need a reason
for it to NOT happen, else it will happen again & again & again.
On another topic, for example, if we entertain the notion that a universe can come
into existence, that a universe can be "Created" -- and this is something that a
great many of us believe has in fact happened -- then you need something to stop
more universes from being created... else they exist in infinite numbers. Right?
And just as our ancestors radiated out, separated and became Neanderthals, Denisovans and others, the same thing most certainly was occurring before any
of those groups arose... Chimps arose the very same way... probably gorillas.
In nature, if and when you establish that something can happen you need a reason
for it to NOT happen, else it will happen again & again & again.
Reason = different place!
The 2 populations could have become separate & distinct without them necessarily
becoming different species. They could have cross bred, at least on occasion. ...
In nature, if and when you establish that something can happen you need a reason
for it to NOT happen, else it will happen again & again & again.
Reason = different place!
That doesn't work, not with Aquatic Ape. "The Place" is the ocean front. And following
that ocean front they are going to come into contact with populations that had
previously split off.
By "Contact" I include splinter groups moving inland and contacting the dependents
of earlier splinter groups...
Had to happen. It did happen.
Us so called moderns are a hybrid. The Aquatic Ape population is the only one all
us so called moderns have in common, but it's far from the only one. The San in
sub Saharan Africa have Aquatic Ape ancestors just like me, but they don't share
my Neanderthal ancestors and they have ancestors that I don't share. Technically: They're all Aquatic Ape ancestors by the peeled off, pushed inland
and adapted at different points along the globe and different times.
This never stopped. Even in the case of Neanderthals there are clearly Aquatic
populations -- living on the shoreline and exploiting the sea. But there are also
inland groups that are so strongly associated with reindeer that it is sometimes
suggested that there might've been some kind of domestication.
The Americas? Had to be reached by water. But, then there's the Plains Indians,
nowhere near the ocean...
That's why I suggest that the pivotal moment came around 8.7 million years ago
with the eruption of Yellowstone. It would have been a period ranging from years
to DECADES with no pushing inland, no watering down the gene pool, no moderating their evolution with inland selective pressures.
I'm not saying Chimps & humans sprung up 8.7 million years ago. I'm saying that
it was a point in history where 100% of the selective pressure would be on adapting to better exploit marine resources. There'd be no interbreeding with
other groups, no wandering away from the shore in search of bananas... not for
some time.
Hominoidea (at least early-Miocene?) became BP waders-climbers in coastal forests:tail loss, less lumbar vertebras (7->5), more centrally-placed spine, very broad pelvis+thorax+sternum & dorsal scapulas, lateral & longer arms, etc.
when the Indian continent approached southern Eurasia (40-30 Ma), this formed island archipels, full of coastal forests.
Some of the Catarrhini that reached these islands (already +-adapted to coastal forests in Eurasia??) became the Hominoidea, who fully adapted to living bipedally in these coastal forests of the Indian islands: larger size & longer pregnancy, complete
When India went further underneath Eurasia (forming the Himalaya), this split them into lesser apes (hylobatids) East & great apes West in the coastal forests along the Tethys Ocean c 20 Ma?Rift (EARS) -> Pan fossil subspecies Australopithecus africanus->robustus, in // afarensis->bosei = late-Pliocene"gracile"->early-Pleist."robust" australopiths in parallel!
Then, c 15 Ma, the Mesopotamian Seaway closure split the great apes into
- pongids East (Ind.Ocean coastal forests) &
- hominids West, along the Tethys=Medit.Sea (cf. the BP footprints of Trachilos, Crete).
Only hominids of the incipient Red Sea survived until today: Gorilla, Homo & Pan:
-Gorilla 8 or 7 Ma followed the incipient northern Rift (EARS E.Afr.Rift System) -> Afar: Gorilla fossil subspecies Praeanthropus afarensis->boisei,
-Homo & Pan split 5.33 Ma, when the Zanclean mega-flood opened the Red Sea into the Gulf (Francesca Mansfield)?
-- Pan followed the E.Afr.coastal forests (Josephine Joordens 2011 dissertation Univ.Amsterdam '"The power of place: climate change as driver of hominin evolution and dispersal over the past five million years"), and then followed the incipient southern
-- Pliocene Homo followed the S-Asian sea-coasts, where they began diving more+more for shellfish: early-Pleistocene Javanese H.erectus (ancestor or nephew of ours?) was *very aquatic* = slow+shallow-diving: brain size x2 (DHA), pachy-osteo-sclerosis,broad+flat skull+body+limbs etc.
Note
- the enormous influence of plate tectonics on hominoid evolution!
- the remarkable parallel evolution of Gorilla // Pan in N-EARS vs S-EARS!
Were Plate Tectonics, as well as Parallel Evolution also so important in many other animals??
See
tail loss, less lumbar vertebras (7->5), more centrally-placed spine, very broad pelvis+thorax+sternum & dorsal scapulas, lateral & longer arms, etc.Hominoidea (at least early-Miocene?) became BP waders-climbers in coastal forests:
when the Indian continent approached southern Eurasia (40-30 Ma), this formed island archipels, full of coastal forests.
Some of the Catarrhini that reached these islands (already +-adapted to coastal forests in Eurasia??) became the Hominoidea, who fully adapted to living bipedally in these coastal forests of the Indian islands: larger size & longer pregnancy, complete
southern Rift (EARS) -> Pan fossil subspecies Australopithecus africanus->robustus, in // afarensis->bosei = late-Pliocene"gracile"->early-Pleist."robust" australopiths in parallel!When India went further underneath Eurasia (forming the Himalaya), this split them into lesser apes (hylobatids) East & great apes West in the coastal forests along the Tethys Ocean c 20 Ma?
Then, c 15 Ma, the Mesopotamian Seaway closure split the great apes into
- pongids East (Ind.Ocean coastal forests) &
- hominids West, along the Tethys=Medit.Sea (cf. the BP footprints of Trachilos, Crete).
Only hominids of the incipient Red Sea survived until today: Gorilla, Homo & Pan:
-Gorilla 8 or 7 Ma followed the incipient northern Rift (EARS E.Afr.Rift System) -> Afar: Gorilla fossil subspecies Praeanthropus afarensis->boisei,
-Homo & Pan split 5.33 Ma, when the Zanclean mega-flood opened the Red Sea into the Gulf (Francesca Mansfield)?
-- Pan followed the E.Afr.coastal forests (Josephine Joordens 2011 dissertation Univ.Amsterdam '"The power of place: climate change as driver of hominin evolution and dispersal over the past five million years"), and then followed the incipient
broad+flat skull+body+limbs etc.-- Pliocene Homo followed the S-Asian sea-coasts, where they began diving more+more for shellfish: early-Pleistocene Javanese H.erectus (ancestor or nephew of ours?) was *very aquatic* = slow+shallow-diving: brain size x2 (DHA), pachy-osteo-sclerosis,
Note
- the enormous influence of plate tectonics on hominoid evolution!
- the remarkable parallel evolution of Gorilla // Pan in N-EARS vs S-EARS! >Were Plate Tectonics, as well as Parallel Evolution also so important in many other animals??
See "Biological Consequences of Plate Tectonics", in particular chapter 17: https://link.springer.com/chapter/10.1007/978-3-030-49753-8_17
Hominoidea (at least early-Miocene?) became BP waders-climbers in coastal forests:tail loss, less lumbar vertebras (7->5), more centrally-placed spine, very broad pelvis+thorax+sternum & dorsal scapulas, lateral & longer arms, etc.
when the Indian continent approached southern Eurasia (40-30 Ma), this formed island archipels, full of coastal forests.
Some of the Catarrhini that reached these islands (already +-adapted to coastal forests in Eurasia??) became the Hominoidea, who fully adapted to living bipedally in these coastal forests of the Indian islands: larger size & longer pregnancy, complete
When India went further underneath Eurasia (forming the Himalaya), this split them into lesser apes (hylobatids) East & great apes West in the coastal forests along the Tethys Ocean c 20 Ma?southern Rift (EARS) -> Pan fossil subspecies Australopithecus africanus->robustus, in // afarensis->bosei = late-Pliocene"gracile"->early-Pleist."robust" australopiths in parallel!
Then, c 15 Ma, the Mesopotamian Seaway closure split the great apes into
- pongids East (Ind.Ocean coastal forests) &
- hominids West, along the Tethys=Medit.Sea (cf. the BP footprints of Trachilos, Crete).
Only hominids of the incipient Red Sea survived until today: Gorilla, Homo & Pan:
-Gorilla 8 or 7 Ma followed the incipient northern Rift (EARS E.Afr.Rift System) -> Afar: Gorilla fossil subspecies Praeanthropus afarensis->boisei,
-Homo & Pan split 5.33 Ma, when the Zanclean mega-flood opened the Red Sea into the Gulf (Francesca Mansfield)?
-- Pan followed the E.Afr.coastal forests (Josephine Joordens 2011 dissertation Univ.Amsterdam '"The power of place: climate change as driver of hominin evolution and dispersal over the past five million years"), and then followed the incipient
-- Pliocene Homo followed the S-Asian sea-coasts, where they began diving more+more for shellfish: early-Pleistocene Javanese H.erectus (ancestor or nephew of ours?) was *very aquatic* = slow+shallow-diving: brain size x2 (DHA), pachy-osteo-sclerosis,broad+flat skull+body+limbs etc.
I have +-no doubt that
- the late-Miocene hominids s.s. (HPG) lived in Red Sea swamp forests,
- Gorilla followed the incipient N-EARS ->afarensis ->boisei etc.
- when the Red Sea opened into the Gulf (5.33 Ma?) H went right, P went left:
- Pan in the E.Afr.coastal forests ->S-EARS ->africanus ->robustus //Gorilla, - Pliocene Homo ->H.erectus Java dived for shellfish etc.
No doubt early Hominoidea became aquarboreal (Oligo-? early-Miocene?),
but I'm less sure where (hylobatids & pongids in SE.Asia):
-- Indian island archipels = aquarboreal: very (bio)logical IMO, but no fossils.
-- What about the African "apes"?cercopiths after c 20 Ma?
e.g. dendropiths? Nyanzapith., Proconsul? Ugandapith.? Morotopith.? Equatorius? Afropith.?
Hominoidea?? or mostly partial convergences & parallelisms?
were most still above-branchers? no shortened lumbar spine & no broad sternum!
Hominoidea=Latisternalia (broad sternum) = very broad thorax & pelvis: lateral arm+leg movements.
And what about late-Plio-Pleistocene naledi & habilis?
- "habilis" includes different spp? some Gorilla-Praeanthr., other Homo??
- naledi IMO is Pan-Australopith., not Homo, google "naledi verhaegen".
I have +-no doubt that
- the late-Miocene hominids s.s. (HPG) lived in Red Sea swamp forests,
- Gorilla followed the incipient N-EARS ->afarensis ->boisei etc.
- when the Red Sea opened into the Gulf (5.33 Ma?) H went right, P went left:
Sorry, Pan went right, of course, Homo went left.
- Pan in the E.Afr.coastal forests ->S-EARS ->africanus ->robustus //Gorilla,
- Pliocene Homo ->H.erectus Java dived for shellfish etc.
No doubt early Hominoidea became aquarboreal (Oligo-? early-Miocene?),
but I'm less sure where (hylobatids & pongids in SE.Asia):
-- Indian island archipels = aquarboreal: very (bio)logical IMO, but no fossils.
-- What about the African "apes"?cercopiths after c 20 Ma?
e.g. dendropiths? Nyanzapith., Proconsul? Ugandapith.? Morotopith.? Equatorius? Afropith.?
Hominoidea?? or mostly partial convergences & parallelisms?
were most still above-branchers? no shortened lumbar spine & no broad sternum!
Hominoidea=Latisternalia (broad sternum) = very broad thorax & pelvis: lateral arm+leg movements.
And what about late-Plio-Pleistocene naledi & habilis?
- "habilis" includes different spp? some Gorilla-Praeanthr., other Homo??
- naledi IMO is Pan-Australopith., not Homo, google "naledi verhaegen".
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