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Phylum Class PAGES
CHORDATA
Sub-phylum

Adelochorda Balanoglossus, etc.--worm-like chordates
Urochorda Ascidians, salps, etc.--sessile and secon- darily free-swimming marine chordates, 162, 168
Vertebrata

Acrania Amphioxus (lancelets) 162
Cyclostomata Lampreys, hags 168
1Pisces (fishes)

Ostracodermata (Palæozoic shelly-skinned fishes) 161, 165 - 168
Arthrodira (Palaeozoic joint-necked fishes) 166 -- 168
Elasmobranchii--sharks, rays, chimæeroids 161, 167 - 169
Dipnoi (lung-fishes) 168, 170, 172
Teleostomi 173

lobe-finned ganoids (Crossopterygii) 168, 172, 174
true ganoids--sturgeons, gsrpike, bowfins, etc 168, 170
teleosts (bony fishes) 168, 170, 175
1Amphibia
Frogs, toads, newts, mud-puppies, Stego- cephalia, etc 177 - 183
1Reptilia Turtles, tortoises, tuateras, lizards, mosa-
saurs, snakes, crocodilians, dinosaurs,
mammal-like reptiles, ichthyosaurs, ple-
siosaurs, pterosaurs (flying reptiles), etc. 		184 - 226
1Aves (birds)

Reptile-Like birds (Archœopteryx) 226 - 229
Modernized birds 227 - 231

"Ratite" birds--ostriches, moas, etc. 228, 229
"Carinate" birds--toothed birds and all other birds 230, 231
Mammalia

Monotremes (egg laying mammals)-- duck-bills, etc 235, 273
Marsupials (pouched mammals)--opos- sums, kangaroos, etc 235, 237, 243, 244
Placentals insectivores, carnivores, primates, ro-
dents, bats, whales, artiodactyls (cattle,
deer, pigs, antelopes, giraffes, camels,
hippopotami, etc.), ungulates including
proboscidea (mastodons and elephants)
and perissodactyls (horses, tapirs, rhi-
noceroses, titanotheres, etc.), and many
other orders 		259 - 274
1Fossil and recent forms.
All other classes listed are as yet unknown in the fossil state.

-292-

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Publication Information: Book Title: The Origin and Evolution of Life: On the Theory of Action, Reaction and Interaction of Energy. Contributors: Henry Fairfield Osborn - author. Publisher: Charles Scribner's Sons. Place of Publication: New York. Publication Year: 1918. Page Number: 292.
    
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