A2am
A2am is a subclade of mtdna haplogroup A [https://en.wikipedia.org/wiki/Haplogroup_A_(mtDNA)], downstream of his native american branch A2:
A2 > A2-C64T > A2-G16129A! > A2am
A2am haplotrees
A2am on public FTDNA haplotree: https://www.familytreedna.com/public/mt-dna-haplotree/A;name=A2am
A2am on Yfull Mtdna haplotree: https://www.yfull.com/mtree/A2am/
Ancient DNA
One A2am ancient DNA found in 2020 in Curaçao (I13472 - de Savaan), dated 660ybp, in an archeological context of Curaçao ceramic period (ca. 450 and 1500 CE). This paper shows that ancient ceramic individuals from Curaçao can be modeled as resulting from a genetic mixture between ancient ceramic individuals from the Lesser Antilles (74.5%) and ancient ceramic individuals from Venezuela (25.5%).
"A genetic history of the pre-contact Caribbean", Daniel M. Fernandes et al.,
[https://www.biorxiv.org/content/10.1101/2020.06.01.126730v1]