Where does “basosquamous” come from?

basosquamous (English) comes from English squamous, from Latin squāmōsus, from Latin -ōsus, from Old Latin -ōssus.

basosquamous (English): basaloid and squamous

Definitions

Step	Language	Word	Meaning
1	English	squamous	Covered with, made of, or resembling scales;...
2	Latin	squāmōsus	—
3	Latin	-ōsus	—
4	Old Latin	-ōssus	—

basosquamous — Etymology, Origin & Word History | Etymology Explorer