Search results

views on the origin of the vertebrates. London: Chapman & Hall. ISBN 978-0-585-25272-8. Ruta, M. (1999). "Brief review of the stylophoran debate". Evolution...

origin of the vertebrates. Springer Science & Business Media. ISBN 9780585252728 – via Google Books. Bone, Q., and K. P. Ryan (1974). "On the Structure...