This is an announcement for the paper "Quasiminimality in mixed Tsirelson spaces" by Antonis Manoussakis and Anna Maria Pelczar. Abstract: We prove that mixed Tsirelson spaces T[(M_n,\theta_n)_n], where M_n=A_n for all n or M_n=S_n for all n, are quasiminimal. We prove that under certain assumptions on the sequence (\theta_n)_n the dual spaces are also quasiminimal. Archive classification: math.FA Mathematics Subject Classification: 46B20; 46B45 Remarks: 25 pages The source file(s), quasiminimality.tex: 87433 bytes, is(are) stored in gzipped form as 0812.4711.gz with size 26kb. The corresponding postcript file has gzipped size 163kb. Submitted from: anna.pelczar@im.uj.edu.pl The paper may be downloaded from the archive by web browser from URL http://front.math.ucdavis.edu/0812.4711 or http://arXiv.org/abs/0812.4711 or by email in unzipped form by transmitting an empty message with subject line uget 0812.4711 or in gzipped form by using subject line get 0812.4711 to: math@arXiv.org.