Its insides survived better than its legsSourced
The muscles fossilized.
The limbs did not.
Keurbos fossils from roughly 445-million-year-old rocks in South Africa preserve internal anatomy unusually well. Yet the head and limbs are poorly preserved, leaving the arthropod's exact evolutionary position uncertain.
A fossil keeps
its own uneven record.
Summary / translation: Unbubly · CC BY-SA 4.0
Source and reuse details
Keurbos · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-10-01