The "T.d" Letter Stage is the later part of the Early Oligocene (c. 32 to 29 mybp).
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- mid Oligocene Limestone (304 KB). From the Legguru fold belt, West Papua.
- mid Oligocene Limestone (848 KB). From the Pelang Limestone of east Central Java. A small, spot outcrop in a thrust zone, with simple Heterostegina (Vlerkina) forms but no Tansinhokella or Spiroclypeus, fragments of Eulepidina, and several specimens of Nummulites. The bed has an Sr isotopic age of 28 1/4 MYBP, which matched the age of the top of the T.D beds elsewhere in Java such as Ciapus
