What did Ursus maritimus tyrannus look like?

[grrraaahhh]

[Deleted]

This picture might discript a fairly accurate discription. There is another picture on another forum. Will try to find it.

Edit: I almost forgot it was acctually posted on my forum:

[brotherbear]

At what typical weight would you estimate Ursus maritimus tyrannus?
I definitely believe that it would be closer to 2000 or 2500 pounds.

[grrraaahhh]

Brotherbear, I have no idea how much Ursus maritimus tyrannus weighed. All we have from this bear (which some people have argued to be a large brown bear) is one large fossil ulna.

UrsusMaritimus, difficult to say on what this early form of polar bear looked like, hybrid, brown, etc.

[Deleted]

According to an article, it seems the giant polar bear averages 1.2 tonnes.

[grrraaahhh]

Nov 25, 2011 21:58:19 GMT -9 @ultrahybrid said:

According to an article, it seems the giant polar bear averages 1.2 tonnes.

I thought I remember reading this weight figure earlier but I forget the specifics. If you have follow up information to forward I would be interested to see it. This ties in with brotherbear's earlier question, in a way, since large modern brownies or polar bear can approach a tonne, then if we are talking about a very large form of early polar bear or brown/polar bear mix; I could see that bear weighing over a tonne.

[duanmianxiong]

in Ursus maritimus tyrannus the rlna is 485mm,is there any polar bear'ulna bigger then it ?

[divingwolf]

No, the next longest ulna belongs to an Ursus maritimus specimen in the Zoological Institute of the University of Uppsala. Its total length is 428 mm, considerably less than the specimen you are referring to.

Source: On Evolution and Fossil Animals, by Björn Kurtén, 1988

[duanmianxiong]

what is the longgest ulna of Ursus arctos and Ursus spelaeus?I remember there is a big brown bear whose ulna is 450mm(CfM 63802)
source:Fossol bear from Langebaanweg,Cape Province,South Africa
R.G.Wolff.etc.1977

[divingwolf]

An interesting question, I'll have to try and find the answers.

Related to this:
"One of the ulna's belonging to the Arctotherium angustidens specimen was intact-and 570 mm long. That bear was huge."

"... the largest Arctodus simus ulna yet found was 591 mm long."

See "THE LARGEST KNOWN BEAR, ARCTOTHERIUM ANGUSTIDENS, FROM THE EARLY PLEISTOCENE PAMPEAN REGION OF ARGENTINA: WITH A DISCUSSION OF SIZE AND DIET TRENDS IN BEARS", published in Journal of Paleontology, 85(1), 2011, p. 69–75.

Source: carnivoraforum.com/topic/9701908/1/

[divingwolf]

As far as I know, the specimen you are referring to from Langebaanweg was an Agriotherium Africanum with an ulna length > 252 mm. Certainly big, but not gigantic.

See shaggygod.proboards.com/index.cgi?board=africapliocene&action=print&thread=754

[duanmianxiong]

Of course, I don't refer to that Agriotherium africanum(252+)
,I mean the brown bear given by the authors to compare with the Agriotherium. the 63802 ;D

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[duanmianxiong]

the Ursus maritimus tyrannus

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[divingwolf]

What is the source of your Camera20130123182659.jpg?
I would like the read the rest of the article.

The explanation for Table 4 may be a bit confusing. Only the first specimen is from Langebaanweg. Ursus arctos (CFM 63802) is from Mother Goose Lake, Alaska, USA. It is a coastal brown bear (Ursus arctos gyas).

See image.

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[duanmianxiong]

So the the this brown bear 'ulna is larger then any Ursus maritimus.
is there any bigger record of brown bear 'ulna?
The picture is taken by me in the libriary.