Table 2.

Comparison of two known eggs (with measured parameters) with possible source taxa (with estimated body mass) to generate ESR. These values were used in the FEA simulations. ESR: egg size ratio (W/M).

Egg Specimen	Species	Egg Length, B (mm)	Egg Breath, A (mm)	Shell Thickness, t (mm)	Egg Mass, W (g)	Body Mass, M (kg)	ESR	Ref.
Williams	Genyornis newtoni	155	125	1.15	1327	192	0.69%	[14,33]
	Latagallina naracoortensis	155	125	1.15	1327	6.1	21.75%	[13,14,34]
	Progura gallinacea	155	125	1.15	1327	7.7	17.23%	[13,14,34]
Spooner Egg	Genyornis newtoni	126	97	1.3	650	192	0.34%	[13,33]
	Latagallina naracoortensis	126	97	1.3	650	6.1	10.66%	[13,34]
	Progura gallinacea	126	97	1.3	650	7.7	8.44%	[13,34]