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Staurotypinae
	The giant musk turtle; Staurotypus salvinii
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Family:	Kinosternidae
Subfamily:	Staurotypinae; Gray, 1869

The Staurotypinae are a subfamily of the family Kinosternidae of aquatic turtles, which contains the genera Claudius and Staurotypus.

Staurotypus exhibits XX/XY sex determination, in contrast to the temperature-dependent sex determination of most turtles.^[2] Although the exact mechanism of sex determination in Claudius is unknown, it is known to be genetically determined; it is suspected that it exhibits XX/XY sex determination as well.^[3]

Genera

Claudius
Staurotypus

References

^ Turtles of the World: Annotated Checklist of Taxonomy and Synonymy, 2009 Update.
^ Badenhorst, Daleen; Stanyon, Roscoe; Engstrom, Tag; Valenzuela, Nicole (2013-04-01). "A ZZ/ZW microchromosome system in the spiny softshell turtle, Apalone spinifera, reveals an intriguing sex chromosome conservation in Trionychidae". Chromosome Research. 21 (2): 137–147. doi:10.1007/s10577-013-9343-2. ISSN 1573-6849. PMID 23512312. S2CID 14434440.
^ Kawagoshi, Taiki; Uno, Yoshinobu; Nishida, Chizuko; Matsuda, Yoichi (2014-08-14). "The Staurotypus Turtles and Aves Share the Same Origin of Sex Chromosomes but Evolved Different Types of Heterogametic Sex Determination". PLOS ONE. 9 (8): e105315. Bibcode:2014PLoSO...9j5315K. doi:10.1371/journal.pone.0105315. ISSN 1932-6203. PMC 4133349. PMID 25121779.

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[TOTW-1] Turtles of the World: Annotated Checklist of Taxonomy and Synonymy, 2009 Update.

[2] Badenhorst, Daleen; Stanyon, Roscoe; Engstrom, Tag; Valenzuela, Nicole (2013-04-01). "A ZZ/ZW microchromosome system in the spiny softshell turtle, Apalone spinifera, reveals an intriguing sex chromosome conservation in Trionychidae". Chromosome Research. 21 (2): 137–147. doi:10.1007/s10577-013-9343-2. ISSN 1573-6849. PMID 23512312. S2CID 14434440.

[3] Kawagoshi, Taiki; Uno, Yoshinobu; Nishida, Chizuko; Matsuda, Yoichi (2014-08-14). "The Staurotypus Turtles and Aves Share the Same Origin of Sex Chromosomes but Evolved Different Types of Heterogametic Sex Determination". PLOS ONE. 9 (8): e105315. Bibcode:2014PLoSO...9j5315K. doi:10.1371/journal.pone.0105315. ISSN 1932-6203. PMC 4133349. PMID 25121779.

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