Glossary

The American Museum of Natural History (AMNH) is one of the world's largest and most influential natural history museums, located on the Upper West Side of Manhattan, New York City, adjacent to Central Park. Founded in 1869 and first opened to the public in 1871, the museum occupies a campus of 25 interconnected buildings housing 46 permanent exhibition halls, research laboratories, and an extensive research library. Its collections encompass approximately 34 million specimens and artifacts spanning geology, paleontology, zoology, anthropology, and astrophysics, of which only a small fraction is on display at any given time. The museum's Division of Paleontology alone holds an estimated 5 million fossil specimens divided into five collection units—Fossil Amphibians, Reptiles, and Birds; Fossil Fish; Fossil Invertebrates; Fossil Mammals; and Fossil Plants—making it the repository of one of the world's largest dinosaur fossil collections. The institution maintains a full-time scientific staff of approximately 225 researchers, sponsors over 120 field expeditions annually, and receives about 5 million visitors per year. Since its inception, the AMNH has served as a global hub for scientific discovery, public education, and exhibition, advancing knowledge of biological diversity, Earth history, human cultures, and the cosmos. Its mission—to discover, interpret, and disseminate knowledge about human cultures, the natural world, and the universe through scientific research and education—has shaped the development of multiple scientific disciplines, particularly vertebrate paleontology, where its expeditions and collections have yielded some of the most significant fossil discoveries in history.

The David H. Koch Hall of Fossils — Deep Time is the 31,000-square-foot permanent paleontology exhibition at the Smithsonian National Museum of Natural History (NMNH) in Washington, D.C., opened to the public on June 8, 2019. The hall displays approximately 700 fossil specimens—many never previously exhibited—drawn from the museum's collection of over 40 million fossils, making it one of the largest and most comprehensive fossil exhibitions in the world. Structured as a reverse-chronological journey through 3.7 billion years of Earth history, the exhibition guides visitors from the recent Ice Ages back through 10 geologic time periods to the formation of the planet, illustrating how life and Earth have co-evolved. A central narrative theme is the concept of 'deep time,' the scientific understanding that Earth's history spans billions of years, and that past geological and biological events are directly connected to the present and future. The exhibition replaced the museum's previous fossil halls, which had stood in various forms since the building opened in 1910 and had not undergone a comprehensive renovation in over 30 years. The $110 million renovation—the largest and most complex in the museum's history—was made possible by a $35 million lead donation from David H. Koch, with approximately $70 million in federal infrastructure funding and additional private contributions. The hall serves as a major platform for public science education, integrating climate-change messaging, interactive media, and hands-on learning, and anchors the Smithsonian's role as steward of the United States' national natural history collections.

The **Dinosaur Renaissance** refers to a major paradigm shift in the scientific understanding of dinosaurs that began in the late 1960s and peaked during the 1970s and 1980s. The term was coined by paleontologist Robert T. Bakker in a 1975 article of the same name published in *Scientific American*. The central catalyst was the discovery and description of **Deinonychus antirrhopus** by John H. Ostrom, found in Montana in 1964 and formally described in 1969. Deinonychus's agile build, large sickle-shaped pedal claw, and erect posture directly contradicted the prevailing view of dinosaurs as slow, dim-witted, cold-blooded reptilian failures. Ostrom argued that this theropod was an active, fast-moving predator likely possessing a high metabolic rate consistent with endothermy. His student Bakker systematized the warm-blooded hypothesis, marshaling evidence from bone histology, predator-to-prey ratios, and erect limb posture. Beyond metabolic reinterpretation, the Dinosaur Renaissance revived the hypothesis that birds are direct descendants of theropod dinosaurs—an idea first championed by Thomas Henry Huxley in the 1860s but long abandoned. It also stimulated research into dinosaur social behavior, parental care, and biomechanics, and elevated dinosaur paleontology from descriptive taxonomy into a hypothesis-driven modern science. Culturally, the movement transformed public perceptions of dinosaurs, influencing works from Michael Crichton's *Jurassic Park* to contemporary paleoart.

The Fukui Prefectural Dinosaur Museum (FPDM) is a geology and paleontology museum located in Katsuyama City, Fukui Prefecture, Japan, dedicated primarily to dinosaurs and their associated geological contexts. Opened on July 14, 2000, it was established to leverage the rich paleontological resources of the region, where approximately 80 percent of all dinosaur fossils discovered in Japan have been unearthed from the Lower Cretaceous Kitadani Formation of the Tetori Group (approximately 120 million years ago). The museum's iconic silver-domed main building was designed by the architect Kisho Kurokawa using steel and reinforced-concrete construction, with an original total floor area of approximately 15,000 square meters. Following a major renovation completed on July 14, 2023, a new annex was added, expanding the total floor area to approximately 23,600 square meters. The permanent exhibition hall covers 4,500 square meters and is organized into three zones — Dinosaur World, Earth Sciences, and History of Life — housing over 1,000 specimens on display, including more than 50 articulated dinosaur skeletons from Japan and abroad, as well as large-scale dioramas and animatronic reconstructions. The museum's total collection comprises approximately 41,000 items. Six new dinosaur species discovered from Fukui — Fukuiraptor kitadaniensis, Fukuisaurus tetoriensis, Fukuititan nipponensis, Koshisaurus katsuyama, Fukuivenator paradoxus, and Tyrannomimus fukuiensis — form a core part of its research identity. Widely regarded as one of the world's three great dinosaur museums alongside the Royal Tyrrell Museum of Palaeontology in Alberta, Canada, and the Zigong Dinosaur Museum in Sichuan, China, the FPDM has welcomed a cumulative total exceeding 15 million visitors as of August 2025 and serves as a major hub for paleontological research, education, and regional revitalization in Japan.

The Natural History Museum (NHM) in London is a world-leading scientific research institution and natural history museum located in South Kensington. It houses over 80 million specimens spanning 4.5 billion years of Earth's history across five major scientific collections: entomology (34 million insects and arachnids), zoology (29 million animal specimens), palaeontology (7 million fossils), botany (6 million plant specimens), and mineralogy (500,000 rocks, gems, minerals, and 5,000 meteorites). The museum originated from the natural history collections of the British Museum, themselves rooted in Sir Hans Sloane's bequest of over 71,000 items to the nation in 1753. Under the advocacy of Sir Richard Owen—the comparative anatomist who coined the term Dinosauria in 1842—a purpose-built facility was constructed in South Kensington, designed by architect Alfred Waterhouse in Romanesque style using terracotta cladding. The museum opened on 18 April 1881, became administratively independent from the British Museum in 1963, and was officially renamed the Natural History Museum in 1992. In 2025, the NHM achieved a record-breaking 7.1 million visitors—a 13% increase over 2024 and an all-time high for any UK museum or gallery—making it the UK's most-visited tourist attraction. With over 400 working scientists, the museum conducts research addressing major challenges including biodiversity loss, climate change, and sustainable resource use, while its dinosaur collection, comprising 157 taxa (69 type specimens), remains one of its most prominent public-facing features and a primary driver of visitor engagement.

The Royal Tyrrell Museum of Palaeontology is Canada's only museum dedicated exclusively to palaeontology, located in Midland Provincial Park approximately 6 km northwest of Drumheller, Alberta, in the heart of the Canadian Badlands. Opened to the public on September 25, 1985, as the Tyrrell Museum of Palaeontology, it received the 'Royal' designation from Queen Elizabeth II in 1990. The museum is named in honour of Joseph Burr Tyrrell, a geologist with the Geological Survey of Canada who, on August 12, 1884, discovered the 70-million-year-old skull of a carnivorous dinosaur near present-day Drumheller—a specimen later named Albertosaurus sarcophagus by Henry Fairfield Osborn in 1905. The museum serves as both a world-class public exhibition facility and an active research institution, housing over 160,000 catalogued fossil specimens (including more than 350 holotypes), the largest fossil collection in Canada. Its main building spans approximately 12,300 square metres (132,500 square feet), and the surrounding grounds cover over 77,500 square metres. Operated by the Alberta provincial government, the museum features one of the world's largest displays of dinosaur skeletons and has welcomed more than 13 million visitors from over 150 countries since its opening. The museum adds approximately 3,000 specimens to its collection annually through ongoing fieldwork in the Alberta badlands, British Columbia, and the Canadian Arctic, solidifying its role as a globally significant centre for palaeontological research and public science education.

The 'super-ancient humans hypothesis' (Korean: 초고대 인류설) is a pseudoarchaeological claim asserting that a technologically and culturally advanced human civilization existed in deep prehistory—far earlier than the historically documented civilizations of Mesopotamia, Egypt, the Indus Valley, and China (ca. 3100–2500 BCE)—and was subsequently destroyed or lost, leaving behind only enigmatic traces in the archaeological record. Proponents claim that monumental architecture such as the Egyptian pyramids, Pumapunku in Bolivia, and Göbekli Tepe in Turkey cannot be explained by the capabilities of historically known societies and therefore must have been built with knowledge inherited from, or directly by, this hypothetical predecessor civilization. Core features of the hypothesis include an appeal to anomalous or decontextualized artifacts ('out-of-place artifacts,' or OOPArts), selective use of mythological narratives (e.g., Plato's Atlantis) as historical evidence, and a diffusionist framework claiming that disparate ancient cultures worldwide derive from a single lost source. The hypothesis gained its modern form primarily through Ignatius Donnelly's Atlantis: The Antediluvian World (1882), was amplified by the ancient astronaut claims of Erich von Däniken's Chariots of the Gods? (1968), and was further popularized by Graham Hancock's Fingerprints of the Gods (1995) and the Netflix series Ancient Apocalypse (2022). The mainstream archaeological community classifies this hypothesis as pseudoarchaeology because it misrepresents the archaeological record, privileges isolated data points over contextual evidence, ignores well-established explanations for ancient achievements, and has been shown to perpetuate colonial and racially prejudiced narratives that deny Indigenous peoples credit for their own cultural accomplishments.