Definition of transitional fossil
- During the past 30 years, new discoveries and reinvestigations of long-forgotten specimens have coalesced into a flood of transitional fossils. Paleontologists have unearthed walking whales from Pakistan, feathered dinosaurs from China …
- —Courier News (Bridgewater, New Jersey), 27 Feb. 2011
- However, although the mammal and bird origins are both documented by numerous transitional fossils, turtles appear abruptly.
- —Michael S. Y. Lee, Science, 24 Sept. 1993