• early-Pleistocene H.erectus at java = littoral

    From littoral.homo@gmail.com@21:1/5 to All on Sun Mar 26 02:54:04 2023
    Peter Nyikos (sci.bio.paleontology) wrote:
    What's missing is a "smoking gun" of Asian littoral fossils with hominids more human-like than African present-day apes.

    "missing", Peter??
    Not missing at all, to the contrary:
    early-Pleistocene H.erectus at Java was (near)littoral:
    e.g. my book p.220:
    -- "Het Mojokerto-kind (~1,8 Ma?) kwam uit een brede delta vol zeepokken, koralen, zee- en zoetwaterschelpen wijzend op mangroves, strand en moddervlaktes, met fossiele botten van olifanten, neushoorns en nijlpaarden, zwijnen, tapirs, buffels en
    antilopes, tijgers, hondachtigen en apen. (barnacles & corals)
    -- Het schedeldak en dijbot van Trinil lagen volgens José Joordens bij eetbare zoetwaterschelpen (Pseudodon en Elongaria).
    -- En Sangiran-17 (~1,6 Ma?), de meest intacte schedel op Java, kwam uit een brakwatermoeras aan de kust." (brackish marsh near the coast)
    All very littoral!!

    H.erectus pachy-osteo-sclerotic (POS) is *exclusively* seen in slow+shallow-diving tetrapods:
    H.erectus dived mostly for shellfish: shell engravings (google "Joordens Munro"), stone tools, larger brain (DHA...), platycephaly, platypelloidy, platymeria, ext.nose, occipital POS (back-floating), human rudiments: handiness, fur loss, hair
    distribution, SC fat, hyperventilation, voluntary breathing, flat feet, etc.etc.

    ...

    We must discern our different evolutionary phases:
    very schematically 4 phases IMO:
    25? Ma +-"monkey"like cf Cercopithecoidea & Platyrrhini = arboreal: mostly pronograde, 4-handed, tail+
    2.5? Ma +-"ape"like Hominoidea cf australopiths-apes = aquarboreal (google): more orthograde, broad build, tail-loss
    250? ka "aq.ape"like: H.erectus = (parttime)shellfish-diving: brain+, pachyosteoscl., Ind.Ocean-shores
    <250? ka: H.sapiens = predom.walking (soon extinct?)

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