Chordates

Important Types

Pikaia gracilens

Subphyla

Subphylum Vertebrata (“Fish”)
Subphylum Craniata (“Craniates”)
Subphylum Tunicata (“Tunicates”, or “Urochordates”)
Subphylum Cephalochordata (“Lancelets”)

Works Cited

☣ Eric Bapteste, Maureen A O'Malley, Robert G Beiko, Marc Ereshefsky, J Peter Gogarten, Laura Franklin-Hall, François-Joseph Lapointe, John Dupré, Tal Dagan, Yan Boucher and William Martin, “Prokaryotic evolution and the tree of life are two different things.” Biology Direct 2009 4:34 (Received: 16 July 2009; Accepted: 29 September 2009; Published: 29 September 2009) DOI: 10.1186/1745-6150-4-34
Available online @ <https://biologydirect.biomedcentral.com/articles/10.1186/1745-6150-4-34>

☣ Dawkins, Richard. The Last Paragraph of "On The Origin of Species" - Richard Dawkins Lecture Part 1. Youtube. August 15, 2017
Available online @ <https://www.youtube.com/watch?v=NW4smfrON-I>

☣ Vinod, Soumya. The Anthropic Trilogy, Book 3: Evolution Involution. Evolution-involution.org. June 28, 2010
Available online @ <http://maya-gaia.angelfire.com/phylogeny_slideshows_refer.html>

☣ ADVEXON TV. From The Big Bang To The Present Day - 1080p Documentary HD . Evolution-involution.org. Jun 23, 2015
Available online @ <https://www.youtube.com/watch?v=4eKIjkk0NVY>