
@It were Attic potters who first abandoned Protogeometric
style and introduced Geometric style, which is dated from
900 to 700 BC. It is generally classified into early (EG,
900850), middle (MG, 850760) and late Geometric (LG, 760700)
and each is also subdivided as MG I and MG II, also as LG
Ia and Ib. These terms can be used for workshops other than
Attic, even though there are slight chronological difference.
The most marked difference from the Protogeometric
style is that characteristic concentric circles disappeared
and new patterns were introduced. These patterns were gradually
developed and filled more surface of vessels. As some scholars
believe, some patterns recall those of baskets and it is quite
possible that some shapes were taken from them.
After the middle Geometric period figure decoration
was introduced into their repertory. They are represented
as simple silhouette and profile head and legs are attached
to the frontal body seen from a point from which the characteristics
of each part can be best observed. As painters more interested
in figure decoration, restriction of Geometric style was loosen
and they were ready to invent new style.
[1] 
For Geometric
pottery, see, Coldstream, J. N., Greek geometric pottery,
(1968); Coldstream, J. N., Geometric Greece, (1977);
Schweitzer, B., Greek Geometric Art, (1971) 

