But the unicellular ancestor of animals and those first animals are long extinct.
In either case, the morphological evidence cannot be dismissed because it is critical for understanding relationships of the major groups of amniotes, such as pareiasaurs, aetosaurs, and ichthyosaurs, among others, that are long extinct.
That business is long extinct in the north and threatened in the south.
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 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.
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.
The woolly mammoth is long extinct, but it's beginning to look like they might make a comeback — or a comeback of sorts — as a hybrid elephant genetically edited to display many mammoth traits.
The dates, obtained on materials such as bone tools and ornaments made of animal teeth, painted a disturbing picture: Whereas upper layers attributed to modern humans clocked in at no older than 35,000 years, artifacts from the Châtelperronian levels ranged from 21,000 years ago, when Neandertals were long extinct, to 49,000 years ago, before the Châtelperronian actually began.
"The Democratic Backbone is long extinct".
This generation of supermassive, population III stars is long extinct, however, and currently only theoretical.
