Prostraca or Proostraca: How To spell?

The word Prostraca is misspelled against Proostraca, which is plural of "Proostracum"

Proostraca has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings pr & straca which should not be misspelled with single 'O'
Wrong Spelling:  pr-o-straca 
Correct Spelling:  pr-oo-straca 
Find more incorrect spellings of Proostraca to spell right way.

You might be interested to know

Roky or Rooky?

Scholed or Schooled?

Sketchbok or Sketchbook?