Tying the geometrical traits of massive young stellar objects and their
  discs to a potential evolutionary sequence using infrared observations
  Young massive stars influence their surroundings from local to galactic
scales, but the observational challenges associated with their distance and
embedded nature has, until the recent decade, made high-resolution studies of
these objects difficult. In particular, comparative analyses of massive young
stellar object (MYSO) discs are currently lacking and our understanding of
their evolution is limited. Here, we combine the results of two studies with
the aim to attribute geometrical features to an evolutionary sequence for a
sample of seven MYSOs. The time evolution is based on a near-IR spectral
features, while the geometry is determined from a multi size-scale study of
MYSOs. We find that MYSO discs with determined geometrical substructure turn
out to be also spectroscopically more evolved. This implies that disc evolution
and dispersal are occurring within MYSOs, similar to low-mass YSO disc
evolution, despite their faster formation timescales.
