Japan’s First Full-Scale Dinosaur Park
Dinosaur Park is recognized as the first full-scale dinosaur park in Japan. Its exhibits bring prehistoric environments to life, helping visitors explore the world in which dinosaurs and other ancient creatures lived. The park also provides a fascinating perspective on the history of life on Earth and the environments that shaped it.
Scientifically Supervised, Detailed Dinosaur Models
The dinosaur models were created under the academic supervision of three specialists, led by Dr. Takashi Hamada, professor emeritus at the University of Tokyo. The other experts included Dr. Robert T. Bakker of the University of Colorado and Dr. George L. Callison of the University of California. Their expertise helped ensure that details such as skin wrinkles and muscle structure were reproduced with remarkable precision, earning the models recognition for their scientific quality.
Realistic Poses and Reconstructed Colors
Unlike the static reconstructions commonly seen in older reference books, the dinosaurs here are displayed in dynamic, lifelike poses. Their postures reflect the high-temperature, active lifestyle proposed by the high-temperature heterothermy hypothesis, which suggests that dinosaurs were highly active animals.
Because fossils generally do not preserve pigments, the dinosaurs’ original colors remain uncertain. Their colors have therefore been reconstructed by comparing them with those of modern animals. For example, Diplodocus has giraffe-like patterns, Apatosaurus resembles an antelope in coloration, and Iguanodon is painted with markings similar to those of Thomson’s gazelles.
The Desert Zone
The Desert Zone features an arid landscape dotted with cycads, creating the atmosphere of a prehistoric wilderness. Here, visitors can see a Tyrannosaurus and a Protoceratops in a dramatic encounter.
Tyrannosaurus and Protoceratops
The Tyrannosaurus is depicted as a formidable carnivore with a massive body and sharp teeth. It measures 15 meters in length and has an estimated weight of 10 tonnes. Nearby, a Protoceratops stands its ground. This dinosaur lived during the Late Cretaceous and was discovered in the Gobi Desert. It measured approximately 2.4 meters long and weighed an estimated 180 kilograms.
The scene recreates a moment from the prehistoric world with striking realism, allowing visitors to imagine what life might have looked like during the Mesozoic Era.
Pteranodon Watching from Above
Overlooking the confrontation from a rocky outcrop is a Pteranodon, a giant flying reptile with a wingspan of up to 8 meters. Fossils of Pteranodon have been found in Late Cretaceous geological formations in North America, Asia, and Europe.
The Sea Zone
The Sea Zone features Elasmosaurus, a marine reptile distinguished by its exceptionally long neck. It lived during the Late Cretaceous and reached approximately 10 meters in length. The model depicts the animal stretching its neck to catch fish and ammonites, creating the impression of peering into an ancient ocean.
The Forest Zone
The Forest Zone is home to Diplodocus, Iguanodon, and Apatosaurus. These models are set among trees and plants associated with ancient environments, including dawn redwoods, ginkgo trees, and horsetails—plants often described as living fossils. The vegetation helps evoke the atmosphere of prehistoric forests.
Diplodocus
Diplodocus was a gigantic herbivorous dinosaur that lived during the Late Jurassic. It reached 27 meters in length and had an estimated weight of 10–11 tonnes. Its body is thought to have been suited to both life on land and movement in water, and its habitat may have included grasslands, coastal areas, and wetlands.
Iguanodon and Apatosaurus
Iguanodon was a herbivorous dinosaur that lived widely across Europe during the Early Cretaceous. It measured approximately 9 meters long and weighed an estimated 5 tonnes. Fossil teeth attributed to this species have also been discovered along the Sugiyama River in Katsuyama, Fukui Prefecture.
Apatosaurus was once commonly known as Brontosaurus, but Apatosaurus is regarded as the correct name under the relevant taxonomic classification. This enormous dinosaur reached approximately 21 meters in length and had an estimated weight of 30 tonnes. Fossilized footprints indicate that it may have lived in herds.
Adventure and Learning at the Athletic Play Area
The park also has an athletic play area featuring playground equipment decorated with dinosaur and horseshoe crab motifs. Children can enjoy active play while discovering more about prehistoric life and the natural world. Combining outdoor recreation with educational exhibits, Dinosaur Park is an appealing destination for families.
Kasaoka City Horseshoe Crab Museum
Discover Living Fossils and the Ancient History of Life
Adjacent to Dinosaur Park, the Kasaoka City Horseshoe Crab Museum faces the Kōnojima Channel in Kasaoka, an area known for its breeding grounds of horseshoe crabs, which are designated a National Natural Monument. The museum was established to breed, exhibit, and protect these remarkable creatures. It opened in March 1990 and continues to be operated by Kasaoka City.
Protecting an Endangered Habitat
Kasaoka, on the Seto Inland Sea coast in southwestern Okayama Prefecture, has long been known as a habitat for horseshoe crabs. However, large-scale land reclamation in Kasaoka Bay between 1966 and 1989 reduced their natural habitat and raised concerns about their survival. The museum was established in response to these environmental pressures, with a focus on breeding, public education, and conservation.
As part of its conservation efforts, the museum releases young horseshoe crabs into the designated natural breeding grounds. This work supports the species’ reproduction and helps protect the region’s coastal ecosystem.
Exhibits and Interactive Learning
The museum offers a variety of exhibits exploring horseshoe crab biology and the natural history of ancient life. Highlights include a life-size model of a roaring Baryonyx, fossilized horseshoe crab trackways, and live nautilus displays. Visitors can also enjoy a quiz-based theater, making the museum an engaging destination for families.
Observing Living Horseshoe Crabs
Horseshoe crabs are often called “living fossils” because their basic body form has changed relatively little over an extremely long period of evolutionary history. At the museum, visitors can observe living adult horseshoe crabs in a large aquarium. Young horseshoe crabs are also displayed in the breeding exhibition room, allowing visitors to learn about their growth and development.
Other Living Fossils
The museum also introduces other animals commonly described as living fossils, including coelacanths and nautiluses. These exhibits offer a fascinating look at ancient lineages and the long history of evolution.
Coelacanths
Coelacanths first appeared during the Devonian Period of the Paleozoic Era and were once believed to have become extinct around 70 million years ago. In 1938, however, a living coelacanth was discovered off the coast of South Africa. Since then, close to 100 individuals have been caught. Their survival with many primitive anatomical features has made them famous as living fossils.
Nautiluses
Nautiluses first appeared during the Ordovician Period of the Paleozoic Era and flourished during the Mesozoic Era. Today, they survive in limited areas around the Philippines and Australia. Their presence at the museum helps visitors appreciate the diversity and resilience of life through geological time.