1) Order bennettitales 2) Plant order 
Bennettitales (the cycadeoids) is an extinct order of seed plants that first appeared in the Triassic period and became extinct in most areas toward the end of the Cretaceous (i.e. they existed around {Period span/brief|Triassic|Cretaceous}), although some Bennettitales appear to have survived into Oligocene times in Tasmania and eastern Australia...
[n] - fossil gymnospermous plants of the Carboniferous
order Bennettitales noun fossil gymnospermous plants of the Carboniferous