He declared the remains to be traces of a "primitive member of our race."

The Manucodia are the most primitive members of the group.

Its placement within Tetrapoda is uncertain, but it is generally regarded as a primitive member of the group.

Mycterosaurus is the most primitive member of its family.

Calponia harrisonfordi from California seems to be the most primitive member of the family.

It is considered to be the most primitive member of the seal family yet found.

It was one of the most primitive members of its group, living 33 to 32 million years ago in the early Oligocene.

What was its meaning, this primitive member that had miraculously appeared between tombstone and foliage?

Most papers published during the 21st century have treated "Pelycosauria" as an informal grouping of primitive members.

Several features, including its numerous teeth (most advanced oviraptorids were toothless), show that it was a primitive member of the group.