Extinct,Jawed;
Armoured fishes
Silurion-permian
Super Class Pisces
Placodermi Chondrichthyes / Elasmobranchs Osteichthyes/Teleosts
Cartilagenous fishes, Marine, Placoid scales,
Caudalfin-Heterocercal, Mouth-Ventral, Jaw- Hyostylic
Notochord persistant throughout life
Operculum(Except Chimera) and Airbladder absent
Internal fertilization & Viviparous
Male pelvic fins have Claspers (couplatory organ)
Ampulla of Lorenzi (Thermorecepror)
Liver Bilobed, Ureotelic with Opisthonephric kidney
Bony fishes, Marine/Freshwater, Cycloid/Ctenoid scales
Caudal fin-Homocercal, Mouth-Terminal, Jaw-Autostylic
Notochord Replaced By vertebral Column
Operculum & Airbladder Present
External fertilization & Oviparous
Ampulla of Lorenzi Absent, Clasper absent
Liver trilobed, Ammonotelic or ureotelic with
Mesonephric kidney
Arthrodiriformes Antiarchiformes
Eg. coccosteus,
Dunkleosteus, Dinichthyes
Eg. Petrichthyodes
Climatius, Bothriolepis
Actinopterygii
Sarcopterygii
Holostei ChondrosteiTelostei
Selachii
(skin with placoid scales)
Holocephalii
(scaleless skin)
Pleurotremata/Squaliformes Hypotremata/Rajiformes
*Include sharks and dog fishes
*spindle shaped body, lateral gills
Eg- Scoliodon (dog fish)
Sphyrna/Zygaena(hammer head shark)
Rhinchodon(whale shark-largest living shark)
*include saw fishes,Rays,Skates
*Flattened body, Ventral gills
Eg- Trygon(sting ray)
Pristis(saw fish), Raja(common skate)
Torpedo(electric Ray)
Rhinobatus( guitar fish)
Chimaeriformes
*Operculum is present
Eg- Chimaera(rat fish/rabbit fish)
crossopterygii Dipnoi/ Lung fishes
* Fleshy lobed fin present
Eg- Latemeria/The coelocanth
Oldest living fish/ Living fossil
feeds on other fishes
*Both Lungs and gills present
*Three chambered heart
Eg Protopterus(African lungfish)
Lepidosiren(South american)
Neoceratodus(Australian lungfish)
skeleton is largely Cartilagenous with
dermal bony plate on head
Skeleton is moderatly BonySkeleton is fully Bony
Polypteriformes
(Ganoid scales)
Acipenseriformes
(Scaleless)
Eg. Polypterus Eg. Acipenser
Polyodon(paddle fish)
Lepisosteiformes Amiiformes
Body covered with Rhomboid scales
having coat of Ganoid scales
*Procoelous vertebrae
Eg- Lepisosteus
(their scales are used in jwellery)
Head-Ganoid scales
Trunk- Cycloid scales
*Amphicoelous vertebrae
Eg- Amia (mud fish)
1.Siluriformes
Eg, Mystus/Arius/
clarius(cat fish)
5.Pleuronectiformes
Hippoglossus,Solea
pleuronectes
9.Lophiiformes/Pediculati
Lophius (Angler fish)
Antennarius (Frog fish)
2. Charachiformes
Piranha, Tetras
6. Clupeiformes
clupea,Salmo,Tarpon,
Sardinops
10.Anguilliformes
Aguilla(eel),
Muraena(moray)
3.Ophiocephaliformes/
Channiformes
ophiocephalus (channa)
7.Beloniformes
Exocoetus(flying fish),
Belone
11.Cypriniformes
Labeo(Rohu), Catla,
Electrophorus
4. Perciformes
Anabas (can live outside
water for several days)
Echenies/ Remora(Sucker
fish)
8. Gasterosteiformes/
Syngnathiformes
*Males have broodpouches
Hippocampus,Fistularia
Syngnathus(Pipe fish)
12.Tetradontiformes(spiny)
.Diodon(porcupine fish)
Tetradon(puffer fish)
Ostracion
By- Ayush Sharma
Email- ayushsharmajp@gmail.com
Ph. no- +91 9461727779
Class 1 Class 2
Class 3
Order 1 Order 2
Subclass 1 Subclass 2
Order 1 Order 2 Order 1
Subclass 1
Subclass 2
Order 1 Order 2
Super order 1 Super order 2 Super order 3
Order 1 Order 2 Order 1 Order 2
