Julian Cope presents Head Heritage

I'm diving deep into the world of Texan psychedelia at the moment for a writing project, and wanted some recommendations on important stuff I might have overlooked.

So obviously you've got the Elevators and the whole IA scene, Red Crayola, Golden Dawn, Lost and Found, Bubble Puppy etc. There's the Fever Tree- often overlooked- and then on a garage tip you've got the Moving Sidewalks and Zakary Thaks, and slightly later and heavier I've picked up the two Josefus LPs.

Kenny and the Kasuals, Randy Alvey and the Green Fuz, I just know odd tracks on garage compilations.

Cold Sun of course.

I also want to follow it through to the present day. The Butthole Surfers seemed to pick up the tradition to some extent in the 80s and 90s, and in the 2000s the Black Angels. The Mars Volta I think could qualify as neo-psych, experimental prog anyway, and I guess Tripping Daisy / The Polyphonic Spree. Also maybe White Denim? Explosions in the Sky?

Thanks in advance...