| Big-headed turtle | 
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| A big-headed turtle (Platysternon megacephalum) | 
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| Scientific classification | 
| Domain: | Eukaryota | 
 
| Kingdom: | Animalia | 
 
| Phylum: | Chordata | 
 
| Class: | Reptilia | 
 
| Order: | Testudines | 
 
| Suborder: | Cryptodira | 
 
| Superfamily: | Testudinoidea | 
 
| Family: | Platysternidae Gray, 1869
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| Genus: | Platysternon Gray, 1831
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| Species: | P. megacephalum | 
| Binomial name | 
| Platysternon megacephalum 
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| Synonyms | 
| Platysternon megacephalum megacephalum
 Platysternon megacephalum Gray, 1831Platisternon megacephalus Gray, 1834Platysternon megacephalus Gray, 1835Emys megacephala Schlegel, 1838Platysternon magacephalum Fitzinger, 1843 (ex errore)Platysternum megacephalum Boulenger, 1889Platysternon platycephalum Mertens, 1959 (ex errore)Platysternum megalocephalum Stanek, 1959 (ex errore)Platysternon megacephalum megacephalum Wermuth, 1960Platysternon magacephalum megacephalum Pritchard, 1979Platysternon megacephalum tristernalis Schleich & Gruber, 1984Platysternon megacephalum tristornalis Alderton, 1988 (ex errore)
 Platysternon megacephalum peguense
 Platysternon peguense Gray, 1870Platysternon megacephalum peguense Wermuth, 1960Platysternon megacephalum vogeli Wermuth, 1969Platysternon megacephalum penguense Nutaphand, 1979 (ex errore)Platysternon megacephalum penuense Nutaphand, 1979 (ex errore)Platysternon megacephalum peguensis Sharma, 1998 (ex errore)
 Platysternon megacephalum shiui
 Platysternon megacephalum shiui Ernst & McCord, 1987
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The big-headed turtle (Platysternon megacephalum) is a species of turtle in the family Platysternidae from Southeast Asia and southern China.