Lange, R.H., Grodziński, Z. and Kilarski, W., 1982. Yolk-platelet crystals in three ancient bony fishes: Polypterus bichir (Polypteri), Amia calva L., and Lepisosteus osseus (L.)(Holostei). Cell and tissue research, 222(1), pp.159-165.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Lepisosteus osseus | Egg | Egg size after water-hardening | 2.20-2.50 | 2.35 mm |