Before you play

What Prehistoric Length Means

This figure compares estimated prehistoric animal size using the broad linear size note on each reference page, usually body length in meters.

  • Most entries are body-length estimates, but some flying or fragmentary animals are represented by the best broad size estimate the source gives.
  • The source often lists a conservative estimate and a larger upper-end estimate; the game keeps the bigger plausible figure from that line.
  • This is a reconstruction measure, not a tape measure wrapped around a complete living animal.

Think broad body scale, not surgical precision.