The word paleoecologies is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 24
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (35 words)
alcogel, alleges, apogees, apogeic, apologs, callose, celosia, coalise, collage, college, collies, eclipse, elegaic, elegiac, elegies, elegise, ellipse, elogies, epilogs, escapee, gallops, gelcaps, geocell, goalies, locales, logical, ooscope, pelagic, pillage, polices, scallop, scalpel, seepage, special, spiegel