For 10 points, give the name for these particles that come in charm, strange, up, and down varieties.
These particles give their name to an epoch shortly after the big bang during which the average energy of particle collision was too high to form hadrons. They are the only elementary particles in the Standard Model that experience all four fundamental interactions. Hadrons are classified in terms of how many "valence" types of these particles they have. One of these particles and its anti-variety form a meson, and baryons are formed from a combination of three of them. For 10 points, give the name for these particles that come in charm, strange, up, and down varieties.
These particles give their name to an epoch shortly after the big bang during which the average energy of particle collision was too high to form hadrons.
quarks [accept more specific types]