"were unearthed from" is a correct and usable phrase in written English.
You can use it when talking about something that has been discovered through digging or exploration. For example: "Many ancient artifacts were unearthed from the ruins of the temple."
But even as remains were unearthed from mass graves, many bodies could not be identified.
Between 1948 and 1952 similar fossils were unearthed from Swartkrans, South Africa, which proved to be another of the richest sources of early hominins.
The results, based on the 2003 National Assessment of Educational Progress, commonly known as the nation's report card, were unearthed from online data by researchers at the American Federation of Teachers, which provided them to The New York Times.
The stone tools were unearthed from sediments that are thought to have been laid down either 840,000 or 950,000 years ago, making them the oldest human artefacts ever found in Britain.
They have generic names such as Sahelanthropus, Ardipithecus, Orrorin, Australopithecus, Paranthropus, and Kenyanthropus, and their remains were unearthed from the dust, stone and mud sediments laid down 3m, 4m and 5m years ago.
For the Royal Bank of Scotland., messages were unearthed from its traders about manipulating Libor that included statements like "i owe you big time," "thats beyond the call of duty!" and even "if u did that i would come over there and make love to you".
The fireplace in the great hall was unearthed from Wanswell Court, a house on the estate - and the entire gatehouse was from Yate Court.
We were sitting on the verandah drinking tea and passing around a strange tooth that had just been unearthed from nearby Liang Bua cave.
Some are unearthed from burial sites, she said, and are often in pristine condition because they have been untouched for centuries.
Dominique Browning's review of Christopher Corbett's "Poker Bride: The First Chinese in the Wild West" (Feb. 21) discusses the "bride" of the title, Polly Bemis, as though she had just been unearthed from the archives.
Simopithecus, a giant ancestral forerunner, according to most authorities, of the present-day genus, Theropithecus (gelada), was unearthed from Olduvai Gorge and South Africa and was recently discovered also in India.
