Complex sentence: The two species of "Dorudon" differ from other members of Dorudontinae mainly in size: they are considerably larger than "Saghacetus" and slightly larger than "Zygorhiza", but also differ from both these genera in dental and/or cranial morphology.
Split into simpler sentences: The two species of "Dorudon" mainly differs from other members of Dorudontinae in their size. They are considerably larger than "Saghacetus" and slightly larger than "Zygorhiza", and differs from both these genera in dental or cranial morphology.