Bears of the Pleistocene

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I can add these informations:

We have a mandible which is at least 360mm in length (Fig 6 D) and it belongs to a brown bear (confirmed by DNA) and the bear was still growing... So we apply the ratio 1.47 for cranial total length / mandibular length (the same used in the paper about Huracan) we obtain a skull length around 529,2 mm for a bear which was not fully grown. If you know the ratio about cranial total length / mandibular length for brown bear, please share it...
Source: The history of bears (Ursidae, Carnivora, Mammalia) from Silesia (Southern Poland) and the neigh Bouring areas - 2020.

Now, i remember you that we have a mandible of Arctotherium angustidens which is 395mm in length. If we apply the same ratio, we have a skull around 580 mm. Given the fact that short faced bears didn't have large skulls relative to their body size, i let you imagine how big was this specimen of Arctotherium angustidens... Reply