Figure 1. Centres of buoyancy (blue squares) and mass (green triangle and red circle) for Tropaeumhillsi deduced using Trueman’s model with the body chamber entirely filled (left); and the model presented herein, with the body chamber only partially filled (right). The green triangle indicates the position of the centre of mass when the head and arms are extended; the red circles when withdrawn.
Figure 2. Centres of buoyancy (blue squares) and mass (green triangle and red circle) for Ancyclocerasmatheronianum deduced using Trueman’s model with the body chamber entirely filled (left); and the model presented here, with the body chamber only partially filled (right). The green triangle indicates the position of the centre of mass when the head and arms are extended; the red circles when withdrawn.
Figure 3. Centres of buoyancy (blue squares) and mass (green triangle and red circle) for Hamitesmaximus deduced using Trueman’s model with the body chamber entirely filled (left); and the model presented here, with the body chamber only partially filled (right). The green triangle indicates the position of the centre of mass when the head and arms are extended; the red circles when withdrawn.
