supercontinent

noun
su·​per·​con·​ti·​nent | \ ˈsü-pər-ˌkän-tə-nənt How to pronounce supercontinent (audio) , -ˌkänt-nənt \

Definition of supercontinent

: a hypothetical former large continent from which other continents are held to have broken off and drifted away

Examples of supercontinent in a Sentence

Recent Examples on the Web The story that the rocks tell begins on the supercontinent Gondwana, which would eventually split into Africa, South America, Australia, Antarctica and India. Jason Daley, Smithsonian, "Study Reveals Lost Continent Demolished by Europe," 13 Sep. 2019 Her Hugo Award-winning Broken Earth books feature a supercontinent called the Stillness that is anything but—the very land is a geologic time bomb, ravaged by earthquakes and volcanic eruptions. Wired, "For N. K. Jemisin, World-Building Is a Lesson in Oppression," 12 Nov. 2019 Ray of hope Australia was still connected to Antarctica back then, as the last remaining vestige of the southern supercontinent of Gondwana. John Pickrell, National Geographic, "Huge Antarctic pterosaur found in fire-struck museum," 16 Oct. 2019 Previously, many of the threophoran dinosaur fossils have been attributed to rock formations associated with the former supercontinent, Laurasia. Ashley Strickland, CNN, "Newly discovered stegosaurus fossil is the oldest in the world," 21 Aug. 2019 The Juan de Fuca is one of the few remaining fragments of the once mighty Farallon plate, which North America began languidly consuming some 180 million years ago as the supercontinent Pangea broke apart. National Geographic, "A tectonic plate is dying under Oregon. Here’s why that matters.," 29 July 2019 When the lake’s fossils were forming, the world was in the Eocene epoch, a warm period in which South America, Antarctica, and Australia were still near each other, just before the final breakup of the ancient southern supercontinent Gondwana. Peter Wilf, National Geographic, "Prehistoric tree is first of its kind found below the Equator," 6 June 2019 During that time period, two supercontinents, Laurasia in the north and Gondwana in the south, dominated the planet. Jason Daley, Smithsonian, "New Species of Stegosaurus Unearthed in Mountains of Morocco," 22 Aug. 2019 Modern-day Morocco is located where the southern supercontinent Gondwana would have been at the time the stegosaur was alive. Jason Daley, Smithsonian, "New Species of Stegosaurus Unearthed in Mountains of Morocco," 22 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'supercontinent.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of supercontinent

1960, in the meaning defined above

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The first known use of supercontinent was in 1960

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Last Updated

11 Dec 2019

Cite this Entry

“Supercontinent.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/supercontinent. Accessed 13 December 2019.

More from Merriam-Webster on supercontinent

Britannica.com: Encyclopedia article about supercontinent

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