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Re: Interesting, veeery interesting



Godwin says whoever says you're wrong has already won the argument :p

On Thu, Sep 29, 2011 at 2:22 AM,  <GSP1954@aol.com> wrote:
> I know of three complete brachiosaur scapula coracoids from the Tendarguru
> (BMNH 5937 and HMN Ki24 don't know new catalog # of latter if there is one)
> & Morrison (BYU 9462). In all three the coracoid is small relative to the
> scapula. At least it seems so in Migeod's quarry map of 5937 which does get
> the overall size of the 2200 mm scapcoracoid about right. In both of the other
> two the scapular distal tip to glenoid scap-coracoid contact/coracoid
> antero-post length is high at about 3.25 because the coracoid is small. Of 
> these
> three 9462 (Jensen's Ultrasaurus) is the largest and the coracoid is about
> 650 mm long (again that's antero-posterior).
>
> Riggs states the coracoid assigned to the holotype B altithorax is 870 mm
> and that is close to the measurement from the figure, so its a big momma even
> when compared to the ilium of the holotype as in Rigg's Pl LXXV. If the
> scapula/coracoid length ratio is the same as in the others then the combined
> scapcoracoid was some 3250 mm.
>
> Let us curse the from what I know fascist Janensch. He states that the
> coracoid of the B. brancai lectotype 2181(ex S II) is 840 mm, but the figure
> seems to indicate a much smaller element. What, you can't count on even the 
> old
> Krauts to get these things right? Jeez. I am not sure what is in the
> mounted skeleton, but the right element does match the original element in 
> form,
> and there is no way that is anywhere close to 840 mm, it is more like 620 (if
> someone has an direct measurement of this element please let me know).
>
> In fig 4 at www.miketaylor.org.uk/dino/brachio/extras.html the 2181
> coracoid measures 710 mm long which I suspect is at least15% too large, and 
> the
> supposed B altithorax coraocid is 850 which may be a tad small, so I don't
> think the size comparison is correct.
>
> Note that in the composite B altithorax skeleton incl Taylor's in which
> 9462 is scaled in the coracoid is just 575 mm. Try to insert the 870 mm
> coraocid and it just don't fit in well.
>
> So I am sticking to the conclusion that the supposed B altithorax holotype
> coracoid is way too big for it to be assumed to be part of the rest of the
> skeleton.
>
> GSPaul
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