The Late Jurassic geologic record in Mongolia is poorly known, partly due to only sparsely preserved outcrops, but also because of the region's remoteness and limited body of published geological data compared to China and other parts of Eurasia. Considered in the broader context of Mesozoic sedimentary basin dynamics, the Late Jurassic record that has been studied is both informative and perplexing. Late Jurassic sedimentary basins are preserved in the subsurface throughout the country, and they are partially exposed (along with their igneous and metamorphic counterparts) where they have been inverted by Cretaceous–Cenozoic faulting. However, the speculated geodynamic settings for these basins are poorly reconciled: Various reconstructions place the basins between regions of contrasting tectonic styles in the late Mesozoic (contraction to the southwest and extension to the east/southeast). It is suggested that much of Mongolia represented a large-scale accommodation zone beginning in the early Mesozoic and continuing into at least Late Jurassic time. This scenario may have been expressed within an overall strike-slip framework that includes long-term reactivation structures, some of which are still active today. Although speculative, the hypothesis helps to explain evidence for differential rotation between Mongolia and surrounding blocks in the late Mesozoic, and it is testable pending additional field and analytical data. In particular, additional information is needed regarding the timing and modes of Mongol-Okhotsk Ocean closure and suturing. Current interpretations place final ocean closure and suturing in Mongolia anywhere from Permian to Cretaceous, with differing implications for collisional mechanisms and geologic expressions.