Echinoderms and Chordates: Introduction to the phylum and fishes ...
Echinoderms and Chordates: Introduction to the phylum and fishes ...
Echinoderms and Chordates: Introduction to the phylum and fishes ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Fig. 34.12: Vertebrates<br />
possess elaborate heads with<br />
large brains <strong>and</strong> a cranium<br />
<strong>and</strong> a vertebral column.<br />
The Gnathos<strong>to</strong>mata are<br />
vertebrates that possess<br />
jaws.<br />
Pharyngeal gill slits<br />
CHORDATA<br />
Dorsal hollow nerve cord<br />
No<strong>to</strong>chord<br />
Muscular, post-anal tail<br />
Outgroups <strong>to</strong> Chordata<br />
Vertebrae, cranium<br />
Jaws<br />
Lungs, internal bone (endoskele<strong>to</strong>n)<br />
Lobed fins<br />
Radial symmetry<br />
Water vascular system<br />
Loss of pharyngeal gill slits<br />
Limbs<br />
Amniotic egg<br />
Scales with hard keratin<br />
Loss of pharyngeal gill slits<br />
Lactation, fur<br />
<strong>Echinoderms</strong><br />
Acorn worms<br />
Xenoturbella<br />
Lancelets<br />
Tunicates<br />
Hagfish<br />
Lampreys<br />
Sharks, rays,<br />
skates<br />
Ray finned<br />
<strong>fishes</strong><br />
Coelacanths<br />
Lungfish<br />
AMPHIBIA<br />
Frogs, <strong>to</strong>ads<br />
Salam<strong>and</strong>ers<br />
Mammals<br />
REPTILIA<br />
Lizards, snakes<br />
Turtles<br />
Alliga<strong>to</strong>rs,<br />
crocodiles<br />
Birds<br />
Pro<strong>to</strong>s<strong>to</strong>mes<br />
Deuteros<strong>to</strong>mes<br />
CHORDATA<br />
CHORDATA<br />
VERTEBRATA<br />
GNATHOSTOMATA<br />
SARCOPTERYGII<br />
TETRAPODA<br />
AMNIOTA