From XSDDatatypes:

XSDfloat
XSDdouble
XSDint
XSDlong
XSDshort
XSDbyte
XSDunsignedByte
XSDunsignedShort
XSDunsignedInt
XSDunsignedLong
XSDdecimal
XSDinteger
XSDnonPositiveInteger
XSDnonNegativeInteger
XSDpositiveInteger
XSDnegativeInteger
XSDboolean
XSDstring
XSDnormalizedString
XSDanyURI
XSDtoken
XSDName
XSDQName
XSDlanguage
XSDNMTOKEN
XSDENTITY
XSDID
XSDNCName
XSDIDREF
XSDNOTATION
XSDhexBinary
XSDbase64Binary
XSDdate
XSDtime
XSDdateTime
XSDduration
XSDgDay
XSDgMonth
XSDgYear
XSDgYearMonth
XSDgMonthDay