Sentence examples for been long extinct from inspiring English sources
Stromatolites, once thought to have been long extinct until a large living colony was discovered in Shark Bay in Western Australia in the mid-1950s, are made up of large colonies of bacteria, often blue-green algae, and sedimentary deposits, which grow naturally in a style that Dr. Sacks likened to a layer cake.
Although CR1 elements have probably been long extinct since the early evolution of mammals, several of the nonmammalian genomes studied herein suggest ongoing, very recent CR1 activity in some amniote lineages.
All of the species that we consider dinosaurs are long extinct, and plenty of lineages went extinct, too.
The comedy of manners, a theatrical form widely believed to be long extinct in the American theater, has actually resurfaced on Broadway with all its vital signs intact.
In the fullness of galactic time, the Voyagers may be found, but by then the human race may be long extinct.
While the early ancestors of animals are long extinct, several multicellular eukaryotes still have a unicellular feeding stage, simplifying identification of genes that uniquely regulate multicellular development.
In the Chaco there is a small reserve of Chacoan peccaries, thought by scientists to be long extinct until the early 1970s, when living representatives of the species were discovered.
The Santee campaign, in 1971, centered on Sanders's contention that he had heard the call of the ivory-billed woodpecker, a species widely assumed to be long extinct.
The object of this quest, headed by Dr. David C. Oren, an American ornithologist employed by the Brazilian Government, is an animal Dr. Oren believes to be a human-size ground sloth, belonging to a family thought by paleontologists to be long extinct.
