Actually Elder is "officially" influenced by motorpsycho. I think I read an interview with them some time ago where they said something among the lines that after hearing Little lucid moments, they changed their view on the whole songwriting and composition process.
Did a quick search, but didn`t find that one, but found this.
I can hear recent prog metal bands like Opeth and Baroness but also classic '70s hard rock stuff in your music. What are your favorite bands and your biggest influences?
That's not really an easy question to answer as we all have very broad tastes in music. The most obvious influence on our recent music is Motorpsycho, at least compositionally speaking, as well as a lot of early prog rock bands and hard rock stuff from the '70s. Ironically perhaps, none of us listen to Opeth or Baroness and it's confused me to some degree that we seem to garner a lot of comparisons (at least to the latter). Some favorite bands? Bo Hansson, Stereolab, Black Mountain, Dungen, Motorpsycho, Credence Clearwater Revival, Emerson Lake & Palmer, etc. etc…"
http://noisefull.com/interviews/elder-nicholas-disalvo
Great band with good taste.
ps: Weedpecker… impressively silly name