exemplar

Phineas Gage is an exemplar of medical miracles.

exemplary

Phineas Gage is a exemplary of medical miracles.

Both of these sentences indicate that Gage is an example. Furthermore, the word exemplar/exemplary bears connotations of being a particularly excellent example.

exemplar

Phineas Gage is an exemplar of medical miracles.

exemplary

Phineas Gage is exemplary of medical miracles.

Both of these sentences indicate that Gage is an example. Furthermore, the word exemplar/exemplary bears connotations of being a particularly excellent example.