Later evolutionary theorists of linear progress had to advance the overtly physical and historical claim that an ancestral lineage of arthropods actually turned over to become the first vertebrates (for the classical statement of the inversion theory, see William Patten, The Grand Strategy of Evolution, 1920).


"Brotherhood by Inversion", p. 327 - Leonardo's Mountain of Clams and the Diet of Worms (1998)

Stephen Jay Gould Quotes

Later evolutionary theorists of linear progress had to advance the overtly physical and historical claim that an ancestral lineage of arthropods...

Later evolutionary theorists of linear progress had to advance the overtly physical and historical claim that an ancestral lineage of arthropods...

Later evolutionary theorists of linear progress had to advance the overtly physical and historical claim that an ancestral lineage of arthropods...

Later evolutionary theorists of linear progress had to advance the overtly physical and historical claim that an ancestral lineage of arthropods...