Vertebrate Characteristics - PowerPoint PPT Presentation

1 / 78
About This Presentation
Title:

Vertebrate Characteristics

Description:

Vertebrate Characteristics Kingdom Animalia; Phylum Chordata; Subphylum Vertebrata Chordata Characteristics Dorsal hollow nerve cord Notochord ( back cord ... – PowerPoint PPT presentation

Number of Views:656
Avg rating:3.0/5.0
Slides: 79
Provided by: clemMscd3
Category:

less

Transcript and Presenter's Notes

Title: Vertebrate Characteristics


1
Vertebrate Characteristics
  • Kingdom Animalia Phylum Chordata Subphylum
    Vertebrata

2
Chordata Characteristics
  • Dorsal hollow nerve cord
  • Notochord (back cord)
  • Pharyngeal gill slits/arches
  • /- postanal tail

3
(No Transcript)
4
(No Transcript)
5
(No Transcript)
6
Subphylum Vertebrata
  • 500 million years ago Ordovician Period
  • About 50,000 species known

7
Geologic PeriodsPALEOZOIC ERA
  • Cambrian Period 600 mya
  • appearance of all major invertebrate phyla 
  • Ordovician Period 500
  • appearance of vertebrates (ostracoderms)
  • Silurian Period 440
  • archaic fishes 

8
  • -Devonian Period 410
  • age of fishes first amphibians
  • -Carboniferous Period 360
  • amphibians dominant first reptiles
  • -Permian Period 290
  • primitive reptiles, decline of early
    amphibians

9
MESOZOIC ERA (age of reptiles 185 million yrs.
duration) -Triassic Period 245 first dinosaurs,
turtles, mammals -Jurassic Period 210 reptiles
dominant first birds arc. mammals -Cretaceous
Period 145 extinction large reptiles
10
  • CENOZOIC ERA
  • (age of mammals 65 million yrs. duration)

11
Key Points
  • From the Geologic Periods page, name 3 of the
    most important dates events

12
Origins of Vertebrates
  • Prochordate, such as Amphioxus
  • Compare to Ammocoete larvae

13
Amphioxus
Larval agnathan - Ammocoetes
14
(No Transcript)
15
(No Transcript)
16
(No Transcript)
17
Vertebrate Characteristics
18
SUPERCLASS AGNATHA
  • Ostracoderms

19
(No Transcript)
20
SUPERCLASS AGNATHA
  • Cyclostomes

21
Agnatha
22
Lampreys Hagfishes or Slime Eels
23
(No Transcript)
24
SUPERCLASS GNATHOSTOMATA
  • Class Acanthodii

25
Class Placodermi
26
Class Chondrichthyes
  • Cartilaginous fish

27
(Chondrichthyes)Subclass Elasmobranchii
28
Class ChondrichthyesSubclass Elasmobranchii
29
Class ChondrichthyesSubclass Holocephali
30
Bony Fish
  • Osteichthyes
  • Greatest number of species of vertebrates

31
Class Actinopterygii
  • Ray-finned fish
  • Operculum
  • Bony skeleton
  • Terminal mouth
  • Swim bladder in most

32
Subclass Chondrostei - paddlefish
33
Subclass Chondrostei - sturgeon
34
Subclass NeopterygiiOrder Holostei (gar)
35
Subclass Neopterygiiorder Holostei - bowfin
36
Subclass Neopterygiidivision Teleostei
37
  • perfect bone
  • 95 of all fish
  • Modern cycloid or ctenoid scales

38
Class Sarcopterygii
  • Fleshy finned fish

39
(No Transcript)
40
Class SarcopterygiiSuperorder Dipnoi
41
Class SarcopterygiiSuperorder Crossopterygii
42
Latimeria Coelocanth
43
Transition from water to land
44
(No Transcript)
45
(No Transcript)
46
Class Amphibia
  • Both life
  • Fewest numbers of species
  • Terrestrial life changes
  • More oxygen in atmosphere than water
  • Air less dense than water for body support
  • More temperature fluctuations

47
Class AmphibiaSubclass Labyrinthodontia
  • OLDEST TETRAPOD, about 350 mya
  • Crossopterygian features such as dermal scales,
    ray-fin tail, skull and sensory structures
    fish-like
  • GAVE RISE TO REPTILES

48
(No Transcript)
49
(No Transcript)
50
(No Transcript)
51
Class AmphibiaSubclass Lissamphibia
  • Smooth amphibians
  • Monophyletic or Diphyletic evolution
  • Skin with glands and keratin
  • No dermal scales
  • Double circulatory system
  • Ectothermic
  • Need water for reproduction

52
Subclass Lissamphibia
  • Order Proanura
  • Order Anura

53
Subclass LissamphibiaOrder Urodela
54
(No Transcript)
55
Subclass LissamphibiaOrder Apoda
56
Class Reptilia
  • Creeps
  • Origin in mid-Carboniferous period
  • Origin from labyrinthodonts
  • Amniotes
  • Keratinized skin with scales
  • Stronger skeleton

57
(No Transcript)
58
(No Transcript)
59
Class ReptiliaSubclass AnapsidaExtinct stem
reptiles
60
Class ReptiliaSubclass Anapsida
61
Class ReptiliaSubclass Lepidosauria
62
(No Transcript)
63
Class ReptiliaSubclass Archosauria
64
(No Transcript)
65
Class ReptiliaSubclass Euryapsida
66
Class ReptiliaSubclass Synapsida
  • Therapsids ANCESTOR OF MAMMALS

67
Class Aves
  • Originated from bipedal dinosaurs
  • Archaeopteryx in Jurassic Period
  • Feathers
  • No teeth in modern birds
  • Endothermic
  • Four chambered heart
  • Complex behavior/social organization

68
Class AvesSubclass Archaeornithes
69
Class AvesSubclass Neornithes
70
Class Mammalia
  • breast
  • Originated from Therapsids
  • Hair
  • Mammary glands
  • Four chambered heart
  • Diaphragm
  • Dentary is sole lower jaw bone

71
Class MammaliaSubclass Prototheria
72
Class MammaliaSubclass Theria
  • Breast or PLACENTA or hair

73
Subclass TheriaInfraclass Metatheria
74
Subclass TheriaInfraclass Eutheria
75
Key Point Classify Vertebrates
  • Gnathostome, Agnathostome

76
Key Point Classify Vertebrates
  • Amniote, Anamniote

77
Key Point Classify Vertebrates
  • Homeotherm/Endotherm
  • Poikilotherm/Ectotherm

78
Key Point Classify Vertebrates
  • Fish, Tetrapod
Write a Comment
User Comments (0)
About PowerShow.com