Meiolania

Meiolania is an extinct genus of large, horned turtles that lived during the Cenozoic on Australia and nearby islands. Its skull bore prominent horns and a tail protected by bony rings.

Connect

Meiolaniidae: Meiolaniidae is an extinct family of heavily armored turtles with prominent skull horns and bony tail clubs. Meiolania is the best-known genus in this family of horned turtles.
Meiolania platyceps: Meiolania platyceps is a large species of Meiolania known from Pleistocene deposits on Lord Howe Island. Its well-preserved skull and skeleton document the genus’s characteristic horns and armored tail.
Cenozoic: The Cenozoic is the geological era beginning about 66 million years ago and continuing to the present. Meiolania lived during this era, with fossils spanning much of its later history.
Turtle biogeography: Turtle biogeography studies the geographic distribution of turtles through space and geological time. Meiolania fossils on distant islands raise questions about dispersal and past land connections.
Testudines: Testudines is the reptile order comprising all living and extinct turtles. Meiolania belongs to the broader turtle lineage despite its unusual skull and tail.
Meiolania mackayi: Meiolania mackayi is a species of Meiolania known from Pleistocene deposits in New Caledonia. This island species extends the genus’s known range beyond Australia and Lord Howe Island.
Lord Howe Island: Lord Howe Island is a volcanic island in the Tasman Sea between Australia and New Zealand. Pleistocene fossils of Meiolania platyceps show the genus inhabited this remote island.
Island biogeography: Island biogeography examines how isolation, area, and colonization shape species on islands. Meiolania’s island populations offer evidence about how large terrestrial animals reached remote islands.
Pleurodira: Pleurodira is one of the two major living turtle lineages, whose members retract their necks sideways. Meiolaniids are generally placed among side-necked turtles, though their precise relationships remain debated.
Turtle skull: A turtle skull is the bony framework enclosing the brain and supporting the jaws and other head structures. Meiolania’s skull carried large horn-like projections that distinguish it from living turtles.