Introduction to Biology. Lecture 23

Home , Medusozoa

Alexey Shipunov

Minot State University

October 29, 2014

Shipunov (MSU) BIOL 111 October 29, 2014 1 / 15 Outline

1 Animals Animal phyla and their phylogeny Classes of chordates and their phylogeny

Shipunov (MSU) BIOL 111 October 29, 2014 2 / 15 Animals Animal phyla and their phylogeny

Animals Animal phyla and their phylogeny

Shipunov (MSU) BIOL 111 October 29, 2014 3 / 15 Animals Animal phyla and their phylogeny Where we are?

Basic organ systems of animals are responsible for locomotion and support; feeding, excretion and osmoregulation; circulation and gas exchange; signaling and reception; reproduction.

Shipunov (MSU) BIOL 111 October 29, 2014 4 / 15 Animals Animal phyla and their phylogeny Four subkingdoms

Spongia: asymmetric ﬁltrators Phagocytellozoa: asymmetric crawlers Cnidaria: radial stinging predators Bilateria: bilateral

Shipunov (MSU) BIOL 111 October 29, 2014 5 / 15 Animals Animal phyla and their phylogeny Nine phyla

Spongia Porifera, sponges Phagocytellozoa Placozoa, Trichoplax Cnidaria Anthozoa, corals Medusozoa, jellyﬁsh Bilateria Mollusca Annelida Arthropoda Echinodermata Chordata

Shipunov (MSU) BIOL 111 October 29, 2014 6 / 15 Animals Animal phyla and their phylogeny

Nine phyla = nine body plans

Shipunov (MSU) BIOL 111 October 29, 2014 7 / 15 Animals Animal phyla and their phylogeny Chordate body plan

Shipunov (MSU) BIOL 111 October 29, 2014 8 / 15 Animals Animal phyla and their phylogeny Phylogeny of nine phyla

Chordata Echinodermata Arthropoda Annelida Mollusca Medusozoa Anthozoa Placozoa Porifera

Shipunov (MSU) BIOL 111 October 29, 2014 9 / 15 Animals Classes of chordates and their phylogeny

Animals Classes of chordates and their phylogeny

Shipunov (MSU) BIOL 111 October 29, 2014 10 / 15 Animals Classes of chordates and their phylogeny Eight classes of Chordata

Acrania: Class 1. Leptocardii: lancelet Vertebrata: Pisces: Class 2. Chondrichthyes Class 3. Actinopterygii Class 4. Dipnoi Tetrapoda: Class 5. Amphibia *Amniota: Class 6. Reptilia Class 7. Aves Class 8. Mammalia

Shipunov (MSU) BIOL 111 October 29, 2014 11 / 15 Animals Classes of chordates and their phylogeny Phylogeny of eight classes

Mammalia Aves Reptilia Amphibia Dipnoi Actinopterygii Chondrichthyes Leptocardii

Shipunov (MSU) BIOL 111 October 29, 2014 12 / 15 Animals Classes of chordates and their phylogeny Optional homework: in preparation for the 3rd test, ﬁll this table:

1 2 3 4 5 6 7 8 9 10 Porifera Placozoa Anthozoa Medusozoa Annelida Mollusca Arthropoda Echinodermata Chordata

Characters: 1 ... Characters will not be necessary relevant to all members of phylum!

Shipunov (MSU) BIOL 111 October 29, 2014 13 / 15 Animals Classes of chordates and their phylogeny Summary

Classes of vertebrates differ mostly in overall optimization of their body functions and in adaptations to the speciﬁc environment

Shipunov (MSU) BIOL 111 October 29, 2014 14 / 15 Animals Classes of chordates and their phylogeny For Further Reading

Animal phyla. http://en.wikipedia.org/wiki/Phylum#Animal_phyla

Vertebrates. http://en.wikipedia.org/wiki/Vertebrate

Fishes. http://en.wikipedia.org/wiki/Fish

Shipunov (MSU) BIOL 111 October 29, 2014 15 / 15