The sector was mainly for research of the extinct alien race as well as the Rosetta alien-member with a complete laboratory dedicated for it, but later the complex was utilized in understanding the Necromorphs also.
Biological Laboratory Edit
Central Hall Edit
This area connects the different sub-sections of the main building. An elevator access to the upper Rosetta Lab can be found there.
Storage Hall Edit
The storage hall is a warehouse where the Science Division kept all the found Red Markers. Carver's final confrontation of his hallucinations takes place in here.
Rosetta Lab Edit
Rosetta Lab was located on the second floor of the main building, on top of the sphere at Central Hall. The lab was attached to another hall with a decontamination chamber.
The lab housed a control panel, that controlled the lab's machinery, an assembly station used to specifically put together the remains of Rosetta as well as another workstation and a control panel of the Assembly station, used to harness the information within Rosetta and making an artificial codex.
Neurology Section Edit
Neurology Hall Edit
A large door loading to the west of the main central hallway next to the Rosetta Lab leads to the neurology section of the building. There is a hallway with a decontamination control room located at the end of it along with a pump room of the corrosive liquid that is used in the decontamination process.
Sterilization Access Edit
Just next to the decontamination control room, there is a small corridor leading to an elevator that takes to the pump room of the decontamination system. The pump is located in a tall chamber guarded by two Lurkers. Isaac must neutralize these Necromorphs to continue activating the pump in order to proceed to the Neurological laboratory.
Neurological Laboratory Edit
A large room with a view to the mountain top through the roof-top, the laboratory was mainly used for brain scans and other neurological experiments on the aliens as well as some captured Necromorphs. A dead Leaper can be found on the wall with some drawings of it found next to it. The room also has x-rays of the Necromorph on the machine. At the back of the room, the second and final Guardian can be found protecting a piece of Rosetta. After gaining the piece and killing the Necromorph, bunch of Fodders emerge through the ventilation systems of the room. Isaac must kill these Necromorphs in order to proceed with the task.
The room also had a second floor above overlooking the laboratory below, however, this area is inaccessible.
Crossover entrance Edit
The entrance to the Paleontology and Biological Sector crossover hallway can be found on the second floor of the Neurology Hall after going an elevator up.