The phrase "and perhaps more significant" is correct and usable in written English.
It can be used to suggest that something may hold greater importance or relevance than previously mentioned.
Example: "The findings of this study are interesting, and perhaps more significant is the impact they may have on future research."
Alternatives: "and possibly more important" or "and maybe even more noteworthy".
And, perhaps more significant, most of them were not expecting one.
Along with vernacular translations of the Bible, they helped to spread the Word and, perhaps more significant, to promote literacy.
The second and perhaps more significant mistake was believing that it was the project leader's role to make that decision.
And — perhaps more significant — that the financial strength of the companies still comes overwhelmingly from the supposed "extras".
And perhaps more significant, they have an opportunity to tie their season total of wins from last year (22) with a victory over Indiana on Sunday night.
Second up, and perhaps more significant, is the piscine challenge to the horsemeat scandal, with the discovery that fish counters and chippies are swimming with incorrectly labelled produce, including some fish that hadn't previously entered the food chain.
If the deal they made holds, there will be endless spin and analysis about who moved and who blinked, but perhaps more significant is that all parties wanted a deal rather than to stand alone and risk the wrath of either the victims of press abuse or of newspapers enraged by regulation.
Poor infrastructure, lack of land on which to build and insufficient office inventory are perhaps more significant impediments to business development than any taint of corruption, Mr. Timpanelli said.
The failure of Alexandre Song and Denílson to make any sort of intervention was perhaps more significant than Squillaci's inability to produce an effective block.
Perhaps more significant, Napoli steered his good friend and starter Derek Holland through a land-mine-laden Cardinals lineup that was coming off a 16-run, 15-hit performance.
Perhaps more significant is the emergence of the smartphone and the tablet, two classes of devices that have eaten away at sales of traditional computers.
