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Re: Ptero notes (long):

> bat origins (<...> [insectivores? dermopterans? primates?] <...>)

Molecular tree:

+--Laurasiatheria (misnomer)
|    |--Eulipotyphla (Real True Insectivores)
|    `--+--Chiroptera
|       `--+--+--Carnivora
|          |  `--Pholidota
|          |--Perissodactyla
|          `--Cetartiodactyla
`--Supraprimates = Euarchontoglires
     |--Glires
     |    |--Rodentia
     |    `--Lagomorpha
     `--Euarchonta
        |--Scandentia
        `--+--Dermoptera
           `--Primates

> >> and sesamoids on the extensor surfaces of either the
> hand or foot. These features, all indicative of tree climbing,<<
>
> Yes!

Arboreal cave bears. Yay.

> >>something akin to a sea
> eagle evolving from a spoonbill (Figure 2).<<
>
> This should have been Dr. Unwin's clue that this could not be true.

Stranger things have happened. *Thylacoleo*...

> It appears to me that the femoral head determines the typical angle of
> the outgoing femur.

Of course the angle of the acetabulum to the vertical/horizontal must not be
neglected.