Sentence examples similar to more ancient date from inspiring English sources

They compared 20 tissue samples taken from modern (1865 to 1995) whale bones and teeth with 23 more ancient samples, dating from 2800 to 6800 years ago, that were collected from archaeological sites and dredging operations.

All these four lines of evidence suggested that these structures derive from a much more ancient one dating back to LECA.

"Having more ancient genomes in a dating analysis will result in more accurate estimates," he said.

If these Carnivore species represent the natural host(s), then either these viruses have a very taxonomically broad host range or the origins of the genus OPXV could be much more ancient than previously thought, dating back to the common ancestor of the Rodentia and Carnivora.

That could allow scientists to cross the ancient date with more modern varieties, in the hopes of creating palms more resistant to infection and drought, for example.

Many holidays of the major world religions tend to occur at the approximate dates of more ancient, pagan festivals.

Our molecular dating showed more ancient episodes of isolation for both the Santa Clara (ca. 2.1 Mya (CI = 1-3.7)) and the Casas Grandes (isolated about 1.5 Mya (CI = 0.4-2.8 0.4-2.8ations.

In agreement with this many of the more ancient selective episodes detected here appear to date back to the birth of these genes by duplication at an ancestral mammalian locus.

Although we hypothesize that ARGFX originated on the stem lineage of the eutherian mammals, it is also worth testing an alternative hypothesis that ARGFX is actually the 'cryptic' fourth Otx paralogue dating to the much more ancient 2R genome duplications.

Deeper sampling from this region will be required to identify whether this region in general holds date palms with higher diversity and more ancient alleles.

It has been estimated that the potential founder lineages such as U6b1a or H1-16260 were more ancient than the oldest archaeological site in the Canary Islands, dated at the first millennium BC.