PPT-Concept 33.5: Echinoderms and chordates are deuterostomes

Echinoderms phylum Echinodermata include sea stars and sea urchins Chordates phylum Chordata include the vertebrates Echinoderms and chordates constitute the clade Deuterostomia 2011 Pearson Education Inc. 1 The embryos of deuterostomes develop quite differently from those of protostomes Protostomes and Deuterostomes Deuterostomesthe ehino0erms hor0ates an0 a few other groupsshare a mo0e of 0evelopment that is quite 0ifferent from other animals 47 pincers Echinoderms Echinoderms are are found in all the found in all the oceans oceans of the world of the world What is an echinoderm What is an echinoderm brPage 2br SKIN all have a hard SKIN all have a hard spiny spiny or bumpy or bumpy endosk Members of this group are sea stars, sea urchins, sea cucumbers and sand dollars. . Echinoderms have an internal skeleton called a endoskeleton – made of harden plates that makes the animal bumpy and irregular texture.. . Phylum . Echinodermata. , from the Greek for . spiny skin. Phylum Echinodermata –. spiney-skinned animals. includes sea stars, brittle stars, sea urchins, sand dollars, sea cucumbers, and crinoids. Phylum . Arthropoda. Most diverse and successful animals of all time. Segmented body, tough . exoskelton. , jointed appendages. Classified based on number and structure of their body segments and appendages. Crown-of-Thorns Star Fish. By Joe Baartz. Biological Classification. The binomial name for the Crown-of-thorns starfish is called ‘. A. canthaster . P. lanci’~ Linnaeus, 1758.. Kingdom: Animalia. :. Echinoderms. Spiny-skinned. Sea Star (Starfish). Green Sea Urchin. Rosy Feather Star. Echinoderms are animals with no: brain, eyes, heart, or lungs. Water-vascular system. Taxonomy. Common starfish. Chordata. An Introduction to Vertebrate Animals . Introduction. Chordates (vertebrates) are the group of animals . most familiar to us. Ex: . mammals, birds, amphibians, reptiles, fish. Name comes from:. Characteristics of Echinoderms. One of the strangest and most unusual phylum in the animal kingdom.. Echinoderms are . deuterostomes. , which is a trait they share with chordates (vertebrates). . All of the other invertebrates we learned about so far have been protostomes.. Comparative Anatomy. Biology . 440 Fall semester. TuTh. 10:00 – 11:15 G23. Lab at 1:00 in 3106 or 3108. Comparative Anatomy. Biology . 440 Spring semester. TuTh. 11:30-12:45 G23. Lab at 2:00 in either 3108 or 3106. Developmental Variations. During embryonic development, the process of . gastrulation. forms the digestive cavity.. Gastrulation. varies in the animal kingdom. No . gastrulation. (. placozoans. ). Chordates By Olivia, Eva, and Anais [Untitled photograph of a giraffe]. ( n.d. ). Retrieved February 20, 2014, from http ://wakpaper.com/large/Giraffes_wallpapers_331.jpg Elephants. ( n.d. . Class . Pterobranchia. (Sea Angels). Class . Enteropneusta. (acorn worms). Small group of marine worms that show similarities. to Echinoderms and Chordates. Tornaria. of Acorn Worms . Auricularia. Derived. = appearing later in the fossil record as a new evolutionary innovation, descendant character state. Clade. = all organisms within a single evolutionary lineage; stemming from a common ancestor (can also be called a .