Sigilarid or Sigillarid: How To spell?

The word Sigilarid is misspelled against Sigillarid, a noun meaning "One of an extinct family of cryptagamous trees, including the genus Sigillaria and its allies."

--> Sigillarid has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings sigi & arid which should not be misspelled with single 'L'
Wrong Spelling:  sigi-l-arid 
Correct Spelling:  sigi-ll-arid 
Find more wrongly spelled words of Sigillarid to spell it well.

-->