The discovery of a previously unknown pharaoh's tomb has stumped Egyptologists, according to a report from the Tech Times.

Achaeologists from the University of Pennsylvania found pharaoh Woseribre Senebkay, from the Abydos dynasty, this week.

The four-chambered tomb, which officials say is close to 3,600 years old, was filled with pieces of limestone that had images of goddesses carved into them. Drawings depicting Nepthys, Selket, Isis and Nieth lined the sarcophagus chamber walls.

Dr. Josef Wegner, who directed the team of UPenn archaelogists, said that the discovery was especially exciting because of the enigmatic nature of the Abydos dynasty.

"It's exciting to find not just the tomb of one previously unknown pharaoh, but the necropolis of an entire forgotten dynasty," Wegner told the Times. "Continued work in the royal tombs of the Abydos Dynasty promises to shed new light on the political history and society of an important but poorly understood era of Ancient Egypt."

Senebkay was buried inside a wooden coffin housed within a stone tomb.

The Abydos dynasty's existence hasn't ever been confirmed, but this finding supports a handful of theories about the rulers of the state.

Inscriptions on the tomb read that Senebkay was called the "king of Upper and Lower Egypt, Woseribre, the son of Re, Senebkay."