Trinca II grotte is located on the right side of the picturesque gorge in the south west of Trinca village, Edinet district, about 70 m southwest of the cave Trinca I, at the height of about 50 m from the Draghişte River, a tributary of Racovăţ river. Trinca gorge was formed over geological epochs of Badenian and Lower Sarmatian (sublevel Volhinian) (20-12 million year ago) as a result of fluvial erosion of the river Draghişte in nearby limestone rock, which is a fragment of uniqueness string of Recife or Toltres from northwest of Bessarabia. Also, the walls of the gorge from Trinca along millennia under weathering and tectonic processes formed grottoes and niches, which later served as temporary or long-term housing for prehistoric people. In the walls of the gorge from Trinca archaeologists have discovered and studied so far three caves with traces of existence (primitive tools of hunting and household made of flint and bone, skeletal remains of hunted animals) of the prehistoric men from middle Paleolithic (Neanderthals) and upper Paleolithic (Kromanions) (Анисюткин et al., 1986). The paleofaunistic material discovered at Musterian sites of human habitation at levels IV and V of the grotto Trinca II is of particular scientific and archaeological interest As result of systematic position identification of about 1000 skeletal reminiscences the presence of following animals (mammals) was established: fox – Vulpes vulpes L.18/4*, arctic fox - Alopes lagopus L.-1, fox-Vulpes sp., -7/2, Cave bear – Ursus spelaeus Rossen.-243/10, Cave hyena -Crocuta spelaea (Goldf.) -9/3, Polecat-Putorius sp. -4/2, Wolverine - Gulo gulo L.-1, Hare – Lepus sp.- 14/7, Cave pika - Ochotona spelaea Owen. -4/3, Steppe marmotte-Marmota bobac aff. paleorossicus Grom. -12/3, lesser mole-rat -Spalax leucodon Nord.-5/1, coomon hamster – Cricetus cricetus L.-2/2, vole species: Microtus gregalis Pall.-11 M1+2 M2/6. Lagurus lagurus Pallas, Eolagurus luteus Eversmann, Microtus socialis Pallas, Microtus oeconomus Palla, Clethrionomys glareolus Schreb., mammoth -Mammuthus primigenius Blum.-5/, horse –Equus latipes Grom.-194/7, Equus (Asinus) hidruntinus Reg.-1, whooly rhinoceros-Coelogonta antiquitatas (Blum.) 8/2, deer – Cervus elaphus L. 2/1, reindeer - Rangifer tarandus L.- 176/7, chamois – Rupicapra rupicapra L.-, bison –Bison priscus Boj.-22, unidentified bones -126. Note. * Nominator – number of scheletal remains, denominator – number of individuals. Association of fauna highlighted in Paleolithic Mousterian stations from the cave Trinca II comprises mainly large hunting animals (horse, cave bear, reindeer, mammoth and others), which were the main feed for people from these staions and their skins were used as bedding on the hard, cold and wet cavern floor and making clothes for cold and long winters of those times. The most common animal in the reef from Trinca, as well as in other reefs with caves in northern and north-western Moldova in Paleolithic was the cave bear. In Musterian caves from Trinca II there were registered cranial fragments, limbs, other skeletal parts, many teeth. The most interesting skeletal piece proved to be a fragment of upper jaw with teeth Pm4 –M2, whose length is 94 mm, length of 10 upper teeth M2 solitary crown ranges from 42.8 to 51.0 mm. The latipes horse, the reindeer and the bison were frequent in the reef and the gorge from Trinca in medium Paleolithic and very required by hunters, fact proved by their bones found in Neanderthal hunters houses. Mammoths rarely appeared in these places, probably due to the steep landscape unsuitable for these giants. In grotte only 4 teeth were found (a premolar Pm 4), two upper molars M1 and M3 and a lower molar (M1) and hollow bone fragments (David, 1998). Among skeletal pieces discovered in inhabited levels of Neanderthals a jaw fragment with lower row of teeth lower premolar Pm 2 -PM 4 of the PM1 of Gulo gulo is of great interest – it is the second discovery in the Pleistocene of Moldova (first is known from Paleolithic cave Duruitoarea Veche, Rascani district) of this carnivore, which at present lives in far northern areas of Eurasia and North America. In the caves of Neanderthals from Trinca II grotte other unique mammalian skeletal parts were discovered. In the level V a lower M1 tooth (crown length is 15.2 mm and 8.8 mm height thereof) was found belonging to the goat – Rupicapra rupicapra, while at the IV level - a few fragments of bone and molars of whooly rhynoceros with strong corns on nasal bones (Coelodonta antiquitatis). It was established the presence in Neanderthals caves from Trinca II grottes of rodent skeletal remnants. The bones, rabbit and marmot are “kitchen scraps” of people who lived in the cave, while the remains of pika and voles (Mictotus gregalis M. socialis, M. oeconomus, Lagurus lagurus, Eolagurus luteus, Clethrionomys glareolus) mentioned above, come from the decomposition of pellets and prey mammmald and birds excrements, temporarily occupying the cave when abandoned by men. The work was performed within the fundamental project 15.187.0211F at the Institute of Zoology of A.S.M.