The phrase "considered to mark" is correct and usable in written English.
You can use it when referring to something that is seen as a notable point of reference or distinction, such as a significant achievement or milestone. For example, "The awards ceremony will be considered to mark the 10-year anniversary of the company."
The Cromerian is generally considered to mark the inception of middle Pleistocene times.
The day he was acquitted is generally considered to mark the beginning of freedom of the press in this country.
The Shepheardes Calender, series of poems by Edmund Spenser, published in 1579 and considered to mark the beginning of the English Renaissance in literature.
And 10 of the 12 patients receiving the drug soon reached the benchmarks that were considered to mark significant improvement, while only two of the nine given placebos did.
Black Friday, the day after the Thanksgiving holiday that is considered to mark the start of the Christmas shopping season, is supposedly so named because sales over the three-day weekend can bring in enough customers to lift many retailers out of the red and into the black for the year.
One of them, in turn, became the father of the legendary first emperor, Jimmu, who is considered to mark the watershed between the "age of the gods" and the historical age; but Jimmu's eastern expedition and conquest of the Japanese heartland was also a myth.
In 1708 the German botanist Johann Scheuchzer wrote Agrostographiae Helveticae Prodromus, a taxonomic paper on grasses that some authors consider to mark the birth of agrostology.
FA general secretary Alex Horne said: "We are bidding for either of the two packages available and, with our recent experience of hosting two Uefa Champions League finals in the last four years, we believe that Wembley Stadium and London represent a strong bid for Uefa to consider to mark the tournament's 60th anniversary.
In general, DGAT2 activity is considered to make a more marked contribution to TAG formation during stationary phase (Yen et al. 2008; Kohlwein 2010).
Preliminary analysis of monthly incidence data revealed a continuum of seasonal patterns, which could be arbitrarily divided into those with ≥75% of episodes concentrated in ≤6 months of the year, considered to have "marked seasonality", and those with no marked seasonality [43].
For each investigated gene, mRNA values of 3 or more were considered to represent marked overexpression and mRNA values of 0.3 or less were considered to represent marked under-expression.
