Caterer on 48P31 is a period93oscillator that is composed of a Caterer and 48P31. Although it is composed of two oscillators of smaller periods (3 and 31 respectively), it is considered non-trivial because it contains a single cell that is alive in generation 89 and dead in the other 92 phases of the oscillator. In terms of its 60 cells, it is the smallest known non-trivial period 93 oscillator.