original question: Which organism classification has the latest fossil record of [Pleistocene]?
answer: mesotheriidae
answer type: Organism Classification.
auxiliary information: The Pleistocene /Ààpla…™st…µsiÀên/ is the geological epoch which lasted from about 2,588,000 to 11,700 years ago, spanning the world's recent period of repeated glaciations. Charles Lyell introduced this term in 1839 to describe strata in Sicily that had at least 70% of their molluscan fauna still living today. This distinguished it from the older Pliocene Epoch, which Lyell had originally thought to be the youngest fossil rock layer. He constructed the name "Pleistocene" from the Greek œÄŒªŒµ·øñœÉœÑŒøœÇ, pleƒ´stos, "most", and Œ∫Œ±ŒπŒΩœåœÇ, kain√≥s, "new"; this contrasting with the immediately preceding Pleiocene, and the immediately subsequent Holocene epoch, which extends to the present time. The Pleistocene is the first epoch of the Quaternary Period or sixth epoch of the Cenozoic Era. The end of the Pleistocene corresponds with the end of the last glacial period. It also corresponds with the end of the Paleolithic age used in archaeology. In the ICS timescale, the Pleistocene is divided into four stages or ages, the Gelasian, Calabrian, Ionian and Tarantian. All of these stages were defined in southern Europe.
The most recent fossil record of [Pleistocene] belongs to which organism classification?