Genesis records a division in Peleg’s days without naming a drowned land bridge. Ross’s date depends on that identification and a conditional lifespan calculation; the chapter’s human geography favors another reading here.
Ross and the YEC reading both affirm eight human survivors. The disagreement concerns chronology and genetic inference: a lineage's common ancestor, retained variation and a complete founding-population model answer different questions.
Genesis’s global scope and a model assigning rock layers to the Flood are separate claims. Ross’s archive arguments deserve actual dataset checks; the Palmer’s oak study is not a long counted-ring chronology.