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Ochroconis lascauxensis is a species of fungus of the Ascomycota phylum, in May 2012 officially described and named after the locality of its first emergence, the Lascaux cave.
It was along with a closely related second species Ochroconis anomala, first observed in 2000 inside the cave and the following year black spots appeared among the cave paintings.
There are no images of reindeer, even though that was the principal source of food for the artists.
Geometric images have also been found on the walls.
The teenagers discovered that the cave walls were covered with depictions of animals.
The drawings are the combined effort of many generations, and with continued debate, the paintings are estimated around 17,000 years BP.Over 900 can be identified as animals, and 605 of these have been precisely identified.Out of these images, there are 364 paintings of equines as well as 90 paintings of stags.One of the bulls is 5.2 metres (17 ft) long, the largest animal discovered so far in cave art. A painting referred to as "The Crossed Bison", found in the chamber called the Nave, is often submitted as an example of the skill of the Paleolithic cave painters.The crossed hind legs create the illusion that one bison is closer to the viewer than the other.