How do you show twins on a family tree?

Twins on a family tree can be shown by connecting them to the same parental node, typically using a horizontal line to represent the siblings. Each twin can be listed next to each other in the same generation, often with a "T" or "tw" notation next to their names for clarity. If using symbols, both twins may be depicted with identical shapes or colors to indicate their twin status while maintaining the overall structure of the tree.