Portal:Paleontology/On this day/April 19
- 1834 - Charles Darwin and Captain Robert Fitzroy embarked on an expedition up the Santa Cruz River in Argentina during the second voyage of the HMS Beagle.
- 1931 - Louis Dollo died in Brussels, Belgium.
- 1958 - William Joscelyn Arkell died of a stroke in Cambridge, United Kingdom at age 53.