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.