Final answer:
Although the first recognized dinosaur bone discovery was made by William Buckland in 1824, none of the options given in the question accurately represent this date. Earlier discoveries were made but were not recognized as dinosaur bones at the time. The closest option provided is 1801, but it is historically inaccurate.
Step-by-step explanation:
The first dinosaur bone discovery is often considered to have been made in 1824 by geologist William Buckland, which predates the choices provided in the question. The bone was later recognized as belonging to a Megalosaurus.
However, if we must choose from the given options, the closest one is 1801, but this is not historically accurate for the first discovery. It should be noted that people had found dinosaur fossils prior to this but did not recognize them as such. Notable is the discovery of large thigh bones found in England as early as 1677, which were incorrectly attributed to a giant human.
Now, regarding the other references provided:
The bird or feathered dinosaur Archaeopteryx was an early bird and is often mistaken for a feathered dinosaur.
Edmontonia was an armored dinosaur, and Herrerasaurus and Eoraptor were saurischian dinosaurs dating back to around 230 million years ago.
As for the Paleolithic shelters made of mammoth bones, these have been uncovered in eastern Europe.