...The bones of vertebrate fossils preserved in this bedare often much injured by the gypsum formationwhich covers their surface and often penetrates themin every direction... 
W. E. Webb 「Buffalo Land」
...Two specimens in the Museum of Vertebrate Zoology, fromSan Gregario, referred by Jackson to S...
James S. Findley 「Speciation of the Wandering Shrew」
...The development of the vertebrate skull...
Theodore H. Eaton 「The Ancestry of Modern Amphibia: A Review of the Evidence」
...” Baer raised the question in 1828 how far, withinthe vertebrate type, the embryonic forms of the higher animalsassume the permanent shapes of members of lower groups...
Ernst Haeckel 「The Evolution of Man」
...The vertebrate embryos are so small anddelicate in their earlier stages that you cannot go very far into the study ofthem without a good microscope and other technical aid...
Ernst Haeckel 「The Evolution of Man」
...He described the firstappearance of the vertebrate embryo, as it may be seen in the globular yelk ofthe fertilised egg, as an oval disk which first divides into two layers...
Ernst Haeckel 「The Evolution of Man」
...The development of even thesimplest and lowest vertebrate from the simple chordula (Figs...
Ernst Haeckel 「The Evolution of Man」
...This diagram has no pretension whateverto be an “exact picture,” but merely an attempt to reconstructhypothetically the unknown and long extinct vertebrate stem-form, an ideal“archetype...
Ernst Haeckel 「The Evolution of Man」
...It is probable that in our primitive vertebrate the skin was raised in themiddle line of the body in the shape of a vertical fin border (f)...
Ernst Haeckel 「The Evolution of Man」
...With the alimentary canal a number of glands are connected whichare of great importance for the vertebrate body, and which all grow out of thecanal...
Ernst Haeckel 「The Evolution of Man」
...Here Ineed only mention that in our hypothetical primitive vertebrate they probablyhad the same form as in the actual amphioxus—the primitive kidneys(protonephra)...
Ernst Haeckel 「The Evolution of Man」
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