''Plagiosternum'' (plae-jee-oh-ster-num, meaning "sideways

breastbone The sternum (: sternums or sterna) or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood ve ...

") was a middle

Triassic The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t ...

temnospondyl Temnospondyli (from Greek language, Greek τέμνειν, ''temnein'' 'to cut' and σπόνδυλος, ''spondylos'' 'vertebra') or temnospondyls is a diverse ancient order (biology), order of small to giant tetrapods—often considered Labyrinth ...

that is native to

Spitzbergen Svalbard ( , ), previously known as Spitsbergen or Spitzbergen, is a Norwegian archipelago that lies at the convergence of the Arctic Ocean with the Atlantic Ocean. North of mainland Europe, it lies about midway between the northern coast o ...

.Warren, Anne. Plagiosternum granulosum E. Fraas: a plagiosaurid temnospondyl from the Middle Triassic of Crailsheim, Germany. Staatliches Museum für Naturkunde, 1995. Plagiosternum reconstruction

References

Triassic temnospondyls of Europe Plagiosauridae {{temnospondyli-stub