Just in case you'd want to know, the singular of "strata" is "stratum". (Although apparently that's sometimes debated [0].) [0] https://www.dictionary.com/bro

Just in case you'd want to know, the singular of "strata" is "stratum". (Although apparently that's sometimes debated [0].) [0] https://www.dictionary.com/browse/stratum https://www.dictionary.com/browse/stratum