Lost To Time

SCP #: SCP-5380

Object Class: Euclid

Special Containment Procedures: A 12m tall concrete wall is to be constructed and maintained around the boundary of SCP-5380. Mobile Task Force Epsilon-9 (aka "Fire Eaters") are tasked with protecting the site from trespassers and are to be stationed within a 30m radius around the Site.
Special care should be taken to ensure that SCP-5380 remains as cold as possible, and creatures that escape are to be terminated. In case of emergency the onsite nuclear warhead is to be detonated.

Any civilians or government units that breach the fence are to be apprehended and be administered Class-A amnestics before being released. Any testing involving D-class resources must have Level-3 approval. All D-class personnel involved with testing are to be interrogated via polygraph afterwards. The Interior of SCP-5380 remains and have been found in perfect condition. Records indicate that SCP-5380 was first found in 189█ but did not begin it's anomalous activity until 197█.

SCP-5380 only becomes active every Sunday at 12:00AM. During this active phase SCP-5380 will suddenly shift in appearance creating an opening at the most North side of the rock. Any personnel who do not exit SCP-5380 by 12:00PM are to ration any supplies they have brought with them and are to try to wait until SCP-5380 becomes active again.

Description: SCP-5380 is a large soundproof chamber deep in the arctic circle. The exterior and
SCP-5380 contains several prehistoric and precambrian creatures perfectly preserved in ice. These include a trilobite, a Utahraptor hereby designated SCP-5380-1, a Megarachne, a ancient human from the species of Australopithecus afarensis, a Liopleurodon hereby designated SCP-5380-2, a Gorgonops, and finally a Homo Sapien nergroid male hereby designated SCP-5380-1.