was the above-mentioned latter script found on any monument?
Yes. Monument 3 (also described as "Danzante", lit. "dancer") from San Jose Mogote, Oaxaca
Zapotec writing
Monument 3 (also described as "Danzante", lit. "dancer") from San Jose Mogote, Oaxaca, is considered to contain the earliest example of Zapotec writing. 
what is maya stelae? Monuments that were fashioned by the Maya civilization do these have any role in religious rituals? Yes. "kʼaltun" binding ritual, in which the stela was wrapped in bands of tied cloth where is it manufactured? UNANSWERABLE where is the afore-mentioned civilization found? Southeastern Mexico, all of Guatemala and Belize, and the western portions of Honduras and El Salvador what were the warriors of these people called? UNANSWERABLE what type of script does this language use? Epi-Olmec and Zapotec scripts are they associated with the creation of any calendar? Yes. They developed the calendar to its maximum sophistication, recording lunar and solar cycles, eclipses and movements of planets with great accuracy what was this calendar called? UNANSWERABLE
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Zapotec writing [SEP] San Jose Mogote Monument 3 ("Danzante")
Monument 3 (also described as "Danzante", lit. "dancer") from San Jose Mogote, Oaxaca, is considered to contain the earliest example of Zapotec writing. Placed as a doorstep to the ceremonial structure, it has a relief of what appears to be a dead and bloodied captive. The 19th century notion that such monuments, also found at Monte Albán, represent dancers is now largely discredited, are now seen to clearly represent tortured, sacrificed war prisoners. Glyphs on the San Jose Mogote Danzante depict drops of blood and a possible calendar day-name "1 Earthquake." By 500 BCE, San José Mogote's 1000 years of dominance ended, and it was relegated to the status of a lesser community that fell under Monte Albán's control.