Last November I wrote a post aboutThe Westminster pavement which linked to an article by the artist David Clayton. He has now followed that with a piece on the New Liturgical Movement about the Quincunx, a central element in the design of that and other cosmatesque pavements. His post can be read here.
The Quincunx in the cosmati pavement of Sants Cecilia in Trastevere
In England, apart from the great medieval Westminster pavement, a modern cosmati floor can be seem in the sanctuary of Buckfast Abbey.