meg·a·fau·na 
(mĕgə-fô′nə)
(mĕgə-fô′nə)n. pl. megafauna or meg·a·fau·nas
Large or relatively large animals of a particular region, period, or habitat: Pleistocene megafauna; crabs and other aquatic megafauna.
mega·fau′nal adj.
- attemptable
- attempter
- attend
- attendance
- attendant
- attendantly
- attendee
- attender
- attending
- attention
- attentional
- attention deficit disorder
- attention deficit hyperactivity disorder
- attention span
- attentive
- attentively
- attentiveness
- attenuate
- attenuation
- attenuator
- attest
- attestant
- attestation
- attester
- attestor