The gives the Bearkats a 17-10 season record and their 12-4 league mark gives Sam Houston its highest seed ever (third) in its 13 trips to the Southland Conference post-season tournament.
The Bearkats never trailed, jumping out to a 17-5 lead in the opening five minutes. Sam Houston led by as many as 19 points in the first half and were up 21 with 7:57 to play.
The Bobcats (16-13, 8-8) were led by Demi Clinch with 16 points and nine rebounds.
The victory extended Sam Houston's winning streak to four games, their longest this season.
The 42 points by the two junior forwards marked Martin's 23rd double figure performance of the year and Thomas's 19th. Thomas has produced double figure points and rebounds in 17 games this year.
Martin also added a career high 11 assists. The Conroe product was 8-of-16 from the field including 4-of-10 three point attempts.
Jasmin Wiley scored nine points and Jasmine Johnson added six points.
Senior guards Khamra Echols and Devin Wombles, making their final appearances at Bernard G. Johnson Coliseum, scored two and four points, respectively.
The Bearkats, who won seven of their last eight games, now will face No. 6 seed Texas State Tuesday at 2:30 p.m. in the first round of the Southland Conference tournament.
Texas State finished the regular season 16-13 and 8-8 in conference. This season will mark the first postseason appearance for the Bobcats since 2008.
2012 Southland Conference Women's Basketball Tournament
Leonard E. Merrell Center, Katy, Texas; March 6-9, 2012
Tuesday, March 6 - Quarterfinals
Game 1: No. 7 Southeastern Louisiana vs. No. 2 McNeese State, Noon
Game 2: No. 6 Texas State vs. No. 3 Sam Houston State, 2:30 p.m.
Game 3: No. 8 Nicholls State vs. No. 1 Central Arkansas, 6 p.m.
Game 4: No. 5 Lamar vs. No. 4 Stephen F. Austin, 8:30 p.m.
Thursday, March 8 - Semifinals
Game 5: Winner Game 1 vs. Winner Game 2, 12:05 p.m. (Southland TV)
Game 6: Winner Game 3 vs. Winner Game 4, 2:33 p.m. (Southland TV)
Friday, March 9 - Championship
Game 7: Winner Game 5 vs. Winner Game 6, 7:05 p.m. (Southland TV)