Skeleton of a cave lion from the Sloup Caves near Brno in the Czech Republic

The cave lion (Panthera leo spelaea) also known as the European or Eurasian cave lion, is an extinct subspecies of lion known from fossils and multiple examples of prehistoric art.
This subspecies was one of the heaviest of the lions. The remains of an adult male, which was found in 1985 near Siegsdorf in Germany, had a shoulder height of around 1.2 m (4 feet) and a body length of 2.1 m (7 feet) without including the tail. This is similar to the size of a very large modern lion. The size of this male has been exceeded by other specimens of this subspecies. Therefore this cat may have been approximately 5-10% larger than modern lions, but it was smaller than the earlier cave lion subspecies, Panthera leo fossilis, and the even larger American lion, Panthera leo atrox.
The cave lion is known from Paleolithic cave paintings, ivory carvings, and clay figurines. These representations indicate that cave lions had rounded, protruding ears, tufted tails, perhaps, faint tiger-like stripes, and that at least some had a "ruff" or primitive mane around their neck, indicating males. Other archaeological artifacts indicate that they were featured in Paleolithic religious rituals.
Environment
They likely preyed upon the large, herbivorous animals of their time, including horses and bison. Some paintings of them in caves show several hunting together, which suggests the hunting strategy of contemporary lionesses.
Their extinction may have been related to the Holocene extinction event, which wiped out most of their megafauna prey in those regions.
Cave paintings and remains found in the refuse piles of ancient camp sites indicate that they were hunted by early humans, which also may have contributed to their demise.
Fossil footprints of lions, which were found together with those of reindeer, demonstrate that these cats once occurred even in subpolar climates.
Classification
The cave lion is normally considered a subspecies of lion, with the scientific name of Panthera leo spelaea (which means "cave lion" in Latin); but occasionally, it is considered a species in its own right, under the name Panthera spelaea. At least one authority, based on a comparison of skull shapes, considers the cave lion to be more closely related to the tiger, which would result in the formal name Panthera tigris spelaea (Groiss, 1996), however, recent genetic research (Burger 2004) shows that it was a close, but separate, relative of the modern lion.