The single ceramic phase of the Aegean Early Bronze Age known as the ‘Kastri group’ has been dated by scholars either to an early phase of EB 3 or to the late phase of EB 2. However, careful examination of the contextual associations of the characteristic pottery of this group in the Cycladic islands and the mainland, and detailed analysis of the ceramic forms and features first appearing in this phase, show the ‘Kastri group’ pottery to occur, as a rule, with forms of EB 2. It is also shown that either this pottery itself, or certain forms with which it occurs, present features heralding EB 3. It is thus proposed that the ‘Kastri group’ constitutes a transitional phase of apparently short duration, intermediate between EB 2 and 3, overlapping in date with both the last stages of the former and the early stages of the latter and ‘bridging’ these two periods.