Upper panel: B-band image of the Hydra I cluster IMACS field. The vertical yellow line traces the position of the 2.″5 wide slit used for the acquisition of our spectroscopic data. Lower panel: NGC3311 center imaging. Left: IMACS I-band imaging; yellow lines trace the position and orientation of the 2.5 long slit. Right: HST-WFPC2 F555W imaging of the same region. Both images show the dusty central region of NGC3311, where bright spots indicate the presence of internal ongoing star formation (Richtler et al. 2020). As a result of the orientation of the slit across this region, we could extract 1D spectra isolating the region with the brighter spot and no dust, as well as the dusty region with the smaller bright spot, confirming the presence of a very young stellar population and detailing its chemical characteristics (see Section 4).