The phrase "about the extant" is not correct and does not convey a clear meaning in written English.
It may be intended to refer to something that currently exists or is present, but the phrase lacks clarity and context.
Example: "The discussion was primarily about the extant species in the region."
Alternatives: "concerning the existing" or "regarding the current".
The piece is on loan from the collection of Eugene Epstein, a retired radio astronomer, and his wife, Carol, who own about half of the extant Wilfreds, including the one featured in "The Tree of Life".
Relationships of Nemertea to other Bilateria: Nemerteans' affinities with Annelida (including Echiura, Pogonophora, Vestimentifera and perhaps Sipuncula) and Mollusca make the ribbon-worms members of Lophotrochozoa, which include about half of the extant animal phyla.
About 40% of the extant enzymatic activities may be accessible by random cloning in E. coli, with a range of 7 73% between the five taxa examined.
The relatively large proportion of Papilionoidea fossils is surprising, given that this group accounts for only about 15% of the extant macrolepidopteran fauna [ 21].
Furthermore, the annelid Hermodice carunculata is a representative of the Lophotrochozoa, a clade of protostome bilaterian animals that comprises about half of the extant animal phyla, including Mollusca, the second most diverse phylum [ 19].
Since the currently available shark genome is bound to be incomplete, it may be expected that about half of the extant s100 genes already existed in the MRCA of cartilaginous and bony fish.
To date, about 30 70 % of the extant plant species are polyploidy [ 6].
This prior effectively incorporates our uncertainty about the origins of the extant South American tapir species.
For a discussion of the extant evidence about the Andronican edition and his presumed contribution to the formation of the Aristotelian corpus, see Barnes 1997 24 444.
Much of the extant information about the last few days of Poe's life comes from his attending physician, Dr. John Joseph Moran, though his credibility is questionable.
