Horsehair or gordian worms are unusual invertebrates in the phylum Nematomorpha. |
Lobsters, crabs, prawns, bay bugs, freshwater and marine crayfish all belong to the phylum Arthropoda, the group which also contains insects. |
The other diploblastic phylum, the Ctenophora, surprisingly, has not been reported to have septate junctions. |
Ferns and fern allies are cryptogamous plants of the phylum Polypodiophyta. |
Bryozoa is the only major phylum that does not have a fossil record in the Cambrian. |
The Entoprocta is also a small phylum and the oldest fossil record is from the Upper Jurassic. |