YAGM: Yuan'an Geological Museum, Yuan'an County, Yichang. Current as: YAGM V (fossils). Hubei. China.
YBU: Yibin University, College of Life Science and Food Engineering, Yibin. Note: GP refers to personal catalogue numbers of Guo Peng. Current as: YBU (herps). Sichuan. China.
YC: York College Fish Collection, York. Pennsylvania. USA.
YCM: Yokosuka City Museum, Yokosuka. Current as: YCM-P (fishes). Kanagawa. Japan.
YDENGP: Yunxian Dinosaur Eggs National Geological Park, Shiyan. Also known as: Qinglong Mountain Dinosaur Egg Fossils Park; Qinglongshan Dinosaur Egg National Geopark (QDENG); Qinglongshan National Geopark. Current as: TML (fossils in Tumiaoling in-situ exhibition hall), YDENGP (hadrosauroid fossils from Lijiagou locality). Hubei. China.
YFTC: Yamanashi Prefectural Fisheries Technology Center, Ushiku, Kai. Yamanashi. Japan.
YHZ: Yizhou Fossil Museum, Yixian. Current as: YHZ (fossils). Liaoning. China.
YIGMR: Wuhan Institute of Geology and Mineral Resources, Wuhan. Formerly: Yichang Institute of Geology and Mineral Resources, Yichang. Current as: YIGMR (fossils). Also as: YIGM (fossils). Hubei. China.
YKM: I.A. Goncharov Ulianovskiy Regional Studies Museum, Ulyanovsk. Current as: YKM (fossils). Ulyanovsk Oblast. Russia.
YMHF: Yaese Museum of History and Folklore, Yaese. Current as: YMHF-MA (fossils). Okinawa. Japan.
YMK: Yangmeikeng tracksite, Shaoguan. Current as: YMK (fossils). Guangdong. China.
YNUGI: Geological Institute, Yokohama National University, Yokohama. Current as: YNUGI (fossils). Kanagawa. Japan.
YNUK: Yunnan Normal University, Biology Department, Kunming. Obsolete as: YU. Current as: YNUK. Yunnan. China.
YPFB: Yacimientos Petrolíferos Fiscales Bolivianos paleontology collection, Centro de Tecnología Petrolera (CTP), Santa Cruz. Note: fossils specimens are the property of CTP (YPFB), but on loan to Muséum national d'Histoire naturelle, Paris (MNHN) for curation and study. Current as: YPFB Pal (fossils). Santa Cruz. Bolivia.
YPM: Yale University, Peabody Museum of Natural History, New Haven. Includes: Bingham Oceanographic Collection (BOC) added in 1959; fossil vertebrate collections of the Princeton University (YPM-PU) acquired in 1985. Obsolete as: PMNH. Current as: YMP ICH (fishes), YPM HERA (amphibians), YPM HERR (reptiles), YPM VP (fossils). Connecticut. USA.
YT: Ludong University, Yantai. Formerly: Yantai Normal College (1958–1984) and University (1984–2006). Shandong. China.
YU: Jordanian Natural History Museum, Al Yarmouk University, Irbid. Current as: YUPS (Palaeontology-Selachii, Department of Earth and Environmental Sciences). Jordan.
YU: Yunnan University, Department of Biology, Kunming. Formerly: Private University of the Eastern Land (1922–1934). Current as: YU (herps). Also as: MZYU. See also: YNUK (separate institution). Yunnan. China.
YUZM: Yasouj University Zoological Museum, Yasuj. Current as: YUZM (herps). Kohgiluyeh and Boyer-Ahmad. Iran.
YYU-ZF: Private collection of Mahmut Elp, Fisheries Faculty, Van Yüzüncü Yıl University, Van. Van. Turkey.
YugNIRO: Southern Scientific Research Institute of Marine Fisheries and Oceanography, Kerch. Formerly: Azov-Black Seas Scientific Research Institute of Marine Fisheries and Oceanography (AzCherNIRO) until 1989. Obsolete as: AzCherNIRO. Current as: YugNIRO (fishes). Crimea. Ukraine.