Silver areas in the history indicate periods of unknown lineage.

Aeacus' first wife was Endeis, a woman of unknown parental lineage.

His successor, Ludeca, of unknown lineage, also invaded East Anglia, and like Beornwulf died while campaigning there, in 827.

He found the new genus to represent a previously unknown lineage of hypsilophodont, similar in some respects to Hypsilophodon.

Captive white tigers are of unknown lineage and likely of mixed ancestry.

Further sampling of Y chromosomes could uncover previously unknown divergent lineages.

Morning Star is a hybrid strain of indica and sativa cannabis with unknown lineage.

Born in 1902, the real-life Lad was an unregistered collie of unknown lineage originally owned by Terhune's father.

Silver-shaded lines in the history indicate periods of unknown lineage.