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Cephalopoda

Cephalopoda. Presentation By: Brandon Krulick , Maria Woerz , Victoria Brown, Emily Drake, and Claudia Toulany. Introduction. Kingdom: Animalia Phylum: Molluska Class: Cephalopoda Subclasses: Coleoidea Nautiloidea Ammonoidea (extinct). https://www.youtube.com/watch?v=GDwOi7HpHtQ.

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Cephalopoda

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  1. Cephalopoda Presentation By: Brandon Krulick, Maria Woerz, Victoria Brown, Emily Drake, and Claudia Toulany

  2. Introduction • Kingdom: Animalia • Phylum: Molluska • Class: Cephalopoda • Subclasses: Coleoidea Nautiloidea Ammonoidea (extinct)

  3. https://www.youtube.com/watch?v=GDwOi7HpHtQ

  4. EVOLUTION • Cambrian (530 Mya) from a monoplacophoran-like mollusk • About 416 Mya, cephalopods diverged into nautiloids and coleoids • Coleoids internalized their shell during the late Paleozoic period. • This internalization of the shell led to the diverging of coleoidinto Octopodiformes and Decabrachia

  5. Characteristics • Primarily composed of a body, head, and foot • Foot is used for movement • Movement is also controlled by the mantle cavity and siphon • All have three hearts • Blue blooded • Large brains • Advanced nervous systems • Complex eyes • Muscular casing (mantle) • Minimum of 8 arms • Arms are directly attached to their head • Many species have tentacles • Their arms have either cirri, suckers, or hooks • Many have a shell

  6. Characteristics • Colour change • Carnivores • Prey include: fish, crustaceans, and mollusks • Horn-like beaks • Tongue used to draw food into the mouth

  7. Defence mechanisms • Tentacles • Camouflage • Sepia sac (ink) https://www.youtube.com/watch?v=5rqhomPaxhE

  8. Life Cycle • 1- 15 years • Semelparousreproduction • Courtship behaviour: male changes colour rapidly • Penis or hectocotylus used to transfer spermatophore • Egg cluster • Variable hatching time • No larval stage • Rapid development

  9. Fun Facts

  10. Blue- ringed octopus • Known as one of the world’s most venomous animals • Can kill an adult human within minutes

  11. Jet Propulsion • Water flows to mantle cavity, thick muscles within the mantle wall contract causing water to travel out a narrow funnel • Backward when feeling threatened, forward when attacking prey • Can swim up to 25 miles an hour • Ex: Neon flying squid

  12. Vampyrotheuthisinfernalis: VAMPIRE SQUID FROM HELL • Bioluminescent arms, glowing blue light • Greater hooked squid Onykiaingens • Record breaking penis

  13. Sources Corona, Lauren. "What Are the Characteristics of a Cephalopod?” Animals. Demand Media, n.d. Web. 31 Mar. 2014. <http://animals.pawnation.com/characteristics cephalopod- 5394.html>. "Class Cephalopods." Cephalopods. N.p., n.d. Web. 31 Mar. 2014. <http://www.angelfire.com/mo2/animals1/cephalopod/c ephalopod.html>. "About E-Fauna BC." Cephalopods. N.p., n.d. Web. 25 Mar. 2014. <http://www.geog.ubc.ca/biodiversity/efauna/Cephalopods.h tml>

  14. "Cephalopod ." Wikipedia. Wikimedia Foundation, n.d. Web. 26 Mar. 2014. <http://en.wikipedia.org/wiki/Cephalopod#Reproduction_and_lif e_cycle>. "University of California Museum of Paleontology." The Cephalopoda. N.p., n.d. Web. 26 Mar. 2014. <http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/cephalopo da.php>. Google Images Vendetti, J. (2006). The cephalopoda. Retrieved 31 March, 2014, from http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/cephalopoda hp

  15. Kröger, B., Vinther, J. & Fuchs, D. (2011). Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules: Extant cephalopods are younger than previously realised and were under major selection to become agile, shell-less predators.. Retrieved 31 March, 2014, from http://www.ncbi.nlm.nih.gov/pubmed/21681989 Nepolina. Retrieved 31 March, 2014, from http://www.manandmollusc.net/advanced_introduction/nepolina.html Vendetti, J. (2006). The cephalopoda. Retrieved 31 March, 2014, from http://www.ucmp.berkeley.edu/taxa/inverts/mollusca/cephalopoda.p hp

  16. "8 Amazing Facts about Cephalopods." Noadis Art. 8 Oct. 2012. N.p., Web. 31 Mar. 2014. http://www.noadi.net/2d-art/8-amazing-facts- about-cephalopods/. "Basic Facts About Cephalopods." Ocean Biogeographic Information System. N.p., n.d.Web. 31 Mar. 2014. http://www.iobis.org/node/161. Craig, Nicolette. "Squid Has Record-breaking Penis." Practical Fish Keeping. N.p., 14 July 2010. Web. 30 Mar. 2014. http://www.practicalfishkeeping.co.uk/content.php?sid=3023 Nautilus belauensis. (2014). Retrieved 31 March, 2014, from http://en.wikipedia.org/wiki/Nautilus_belauensis

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