Category
page 1Paleontological concepts and hypotheses
Dollo's law of irreversibility
hypothesis proposed by Louis Dollo which states evolution is not reversible
Signor–Lipps effect
Sampling bias in the fossil record raising difficulties to characterize extinctions
principle of faunal succession
fossils succeed each other vertically in a specific, reliable order that can be identified over wide horizontal distances
Silurian hypothesis
assessment of modern science's ability to detect evidence of a prior advanced civilization
Romer's gap
gap in the tetrapod fossil record