Science ❯ Paleontology ❯ Fossils
Megachelicerax cousteaui Chelicerate Evolution Cambrian Explosion Microscopic Fossils Salterella Animal Diversification Burgess Shale Ecdysozoan Fossils Marine Ecosystems Chelicerates
Phylogenetic placement within crown-group Stenolaemata suggests the bryozoan crown is older than thought with complex colonial anatomy already established by the Early Cambrian.