We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byJade Grays
Modified over 2 years ago
Urochordates = Tunicates = Sea squirts Protochordates include (See figure 2-2 in text)
Underappreciated beauty of tunicates
Notochord Dorsal hollow nerve cord Pharynx with endostyle Muscular post anal tail Adhesive surface Larva “stands on its head” and attaches to surface
Urochordate larva – diagrams don’t do it justice!
Cephalochordates = Amphioxus = Lancelets (See figure 2-2 in text)
Living Agnaths - Lamprey Hagfish Where’s the link to protochordates?
Lamprey larva = Ammocoetes Tunicate larva See figure 3-6
Lamprey- Vertebrate Ectoparasites
Estimates of 30-40lbs of fish killed by a lamprey in adult life span
Human influences 1800’s Erie canal Weeland canal around Niagra falls !
Lamprey Control: Exploiting basic natural history
Lamprey Control: Larvicides and spawning barriers
AKA Slime eels!
Even Hagfish can be beautiful!
Ordovician Agnaths - Ostracoderms
Myllokumingia Haikouichthys A Recent Surprise – Vertebrates (or at least Craniates) in the Cambrian!!!!
Deuterostomes. Phylum Echinodermata Water vascular system Starfish moving view from aboral surface Starfish moving view from oral surface.
Chordates and Vertebrates The Agnatha – Jawless Fish.
Phylum Chordata The chordates. Five Chordate Hallmarks Notochord – flexible rodlike structure; extending length of body.
Unit 8 Chapter 29 Echinoderms and Invertebrate Chordates
Taylor Jordan. Vertebrate Classes Agnatha Chondrichthyes Osteichthyes Amphibia Reptilia Mammalia.
Phylum Chordata The Lower Chordates.
The Chordates. Kingdom - Animalia Phylum - Chordates Subphylum – 1- Vertebrata Invertebrates 2- Cephalochordata 3- Urochordata.
Phylum Cordata Introduction to the Fish
PHYLUM CHORDATA notochord dorsal, hollow nerve tube gill slits post anal tail.
Phylum Chordata the chordates
Part 3 “Fishes” – an introduction. “Fishes” Vertebrata.
Vertebrate Anatomy – Unit 1
Introduction to Chordates Chapter 15. Basics Bilateral symmetry Segmented body Three germ layers Well-developed Coelom Endoskeleton Complete digestive.
Contents Jenna Hellack Fall 2000 Lesser Deuterostome Phyla and Phylum Chordata(through agnathans)
Chordates Chapter 23.
7 Deadly Classes of Vertebrates
Origin and Early History of the Vertebrates. The Protochordates as Ancestors Some living chordate groups may resemble the primitive vertebrate ancestors.
© 2017 SlidePlayer.com Inc. All rights reserved.