Ontogenetic sequence comparison of extant and fossil tadpole shrimps: no support for the “living fossil” concept

  title={Ontogenetic sequence comparison of extant and fossil tadpole shrimps: no support for the “living fossil” concept},
  author={Philipp Wagner and Joachim T. Haug and Jurgen von Sell and Carolin Haug},
The tadpole shrimp Triops cancriformis (Branchiopoda, Eucrustacea) is often referred to as a “living fossil.” This term implies that the morphology of a species has barely changed for hundreds of millions of years; in the case of T. cancriformis, for about 200 million years. In 1938, Trusheim documented fossil notostracans from the Upper Triassic of southern Germany (237–200 million years) and named them T. cancriformis minor due to their small size compared to modern forms of T. cancriformis… Expand

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