History and Distribution
The cave lion (Panthera leo spelea) was evolved from the earlier Panthera leo fossilis, which first appeared in Europe about 700,000 years ago. Genetic evidence indicates this lineage was isolated from extant lions after its dispersal to Europe. P. l. spelaea lived from 370,000 to 10,000 years ago, during the Pleistocene epoch. Apparently, it became extinct about 12,500 C-14 years ago, during the Würm glaciation, although it may have existed into historic times in southeastern Europe, as recently as 2,000 years ago in the Balkans.
Cave lions were widespread in parts of Europe, Asia and northwestern North America, from Great Britain, Germany and Spain all the way across the Bering Strait to the Yukon Territory, and from Siberia to Turkistan. Mitochondrial DNA sequence data from fossil remains show the American lion (P. l. atrox) represents a sister lineage to P. l. spelaea, and likely arose when an early P. l. spelaea population became isolated south of the North American continental ice sheet about 0.34 Mya.
Analysis of skulls and mandibles of a lion that inhabited Yakutia (Russia), Alaska (USA), and the Yukon Territory (Canada) during the Pleistocene epoch suggested that it was a new subspecies different from the other prehistoric lions, Panthera leo vereshchagini, known as the East Siberian- or Beringian cave lion It differed from Panthera leo spelaea by its larger size and from the American lion (Panthera leo atrox) by its smaller size and by skull proportions. However, recent genetic research, using ancient DNA from Beringian lions found no evidence for separating Panthera leo vereshchagini from the European cave lion; indeed, DNA signatures from lions from Europe and Alaska were indistinguishable, suggesting one large panmictic population.
Read more about this topic: Panthera Leo Spelaea
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