Item#: 5745

Level3

Containment Class:
euclid

Secondary Class:
none

Disruption Class:
keneq

Risk Class:
danger

link to memo

An artistic depiction of a pair of SCP-5745-2,1artwork produced by Researcher Willoghby.

Special Containment Procedures: Upon discovery of an SCP-5745-1 manifestation, depending on the location and severity, MTF Units Paleo-1 through Paleo-7 must be dispatched to contain any SCP-5745-2 instances. If possible, any captured instances are to be brought to Site-5745 and placed in the large environment for further research and study. Lethal force is authorised if an SCP-5745-2 instance becomes hostile.
Description: SCP-5745-1 is a reoccurring space-time anomalous event, during which a rift in time is manifested through unknown means. The rifts always connect our time with periods before humans are thought to exist (typically Cambrian to Pleistocene eras). The location of SCP-5745-1 manifestations is seemingly random, though they occasionally repeat in locations they have previously appeared in. SCP-5745-1 always manifests in locations with a similar climate and ecosystem to the era that the rift is connected.2 Presently, no link between SCP-5745 and SCP-1265 has been discovered.
SCP-5745-2 are creatures that appear from SCP-5745-1 (typically from the clade Dinosauria, Reptilia, or Mammalia). It is currently believed they are legitimate specimens from the eras they emerged, as DNA samples match. SCP-5745-2 are normally docile, appearing to avoid humans at all costs, but if cornered or startled will become aggressive. Carnivorous instances are extremely prone to these outbursts and often actively hunt humans as prey over other possible food sources. The reason for this is unknown. Some have been known to hunt for sport, potentially displaying a slight degree of sentience. SCP-5745-2 instances have shown an ability to survive in a modern environment for some while, despite atmospheric differences, and a herd of Parasaurolophus walkeri currently under study have been permitted to roam the Amazonian rainforest for some time. Some instances that have been observed in our time period have thrived in the new environment for months before discovery, as all SCP-5745-2 seem to immediately adapt to modern atmospheric composition and condition.
The following is a list of all repeat locations SCP-5745-1 has manifested as of 12/03/2021:3

Hell Creek, Montana, USA
Taynton Limestone, Oxfordshire, England
Fraser Island, Queensland, Australia
██████, Gobi Desert, Mongolia
Elliot Formation, South Africa
69°44'52"S 131°12'24"E · 2.51 km, Antarctica
Point Nemo, South Pacific Ocean

Notably, most of these locations are famous for fossilised fragments and/or full skeletons.
History: The first recorded instance of an SCP-5745-1 manifestation comes from the 11th Century, the event being documented in multiple historic paintings. It depicts St. George killing what is believed to be a Dimorphodon macronyx that emerged from SCP-5745-1. A cover story has been fabricated, dismissing the entity as a fictitious ‘dragon'. The section of paintings with SCP-5745-1 visible has been removed. Depictions of SCP-5745-2 are present throughout historical texts and artwork, for example, Asian depictions of dragons are theorised to resemble Titanoboa cerrejonensis or some other species of megafauna snake. If any new references to SCP-5745-2 instances are discovered, they must be dismissed as common folklore or exaggeration of an already existing species.
In 1964, it was discovered that manifestations could be detected an hour before their opening, as radiation levels in the area would spike. This knowledge has benefitted the Foundation in efforts to contain SCP-5745. This requires a Geiger counter4 to be present in the location, so rifts are not always detected if this is not present.
There seems to have been a period where SCP-5745-1 manifestations became non-existent or dormant, as there is no evidence supporting this anomaly from approximately 1450 to 1890. Throughout the 20th and 21st Centuries, SCP-5745-1 seems to manifest more prevalently than ever in modern day. It is theorised the opening of rifts has active and dormant periods, lasting approximately 200-300 years between each dormant event. Currently, we are living in a time where SCP-5745-1 is in an active state.
Due to the frequency of rift openings, 7 MTF Units have been created to specifically deal with SCP-5745-2 threats. These MTF teams have been designated the ‘Paleo Division'. A full list of Paleo Division squads and specs can be found here:

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Paleo-1 ‘Cavemen'
Location: North America
Members: 17
Specialisation: Large members of clade Dinosauria/Mammalia
Paleo-2 ‘ACU'
Location: South America
Members: 8
Specialisation: Medium to large members of clade Dinosauria
Paleo-3 ‘Swamp Waders'
Location: Europe
Members: 11
Specialisation: Small to medium members of clade Dinosauria/Mammalia/Reptilia
Paleo-4 ‘Desert Dwellers'
Location: Asia
Members: 14
Specialisation: Small to large members of clade Dinosauria/Mammalia/Avialae
Paleo-5 ‘Park Rangers'
Location: Africa
Members: 7
Specialisation: Medium members of clade Dinosauria/Mammalia
Paleo-6 ‘Prehistoric Poachers'
Location: Oceania (also tasked with defence of Site-5745)
Members: 16
Specialisation: Medium members of clade Dinosauria
Paleo-7 ‘Woolly Mammoths'
Location: Antarctica
Members: 8
Specialisation: Small to large members of clade Mammalia

Note: Not all members of the Paleo Division are assigned strictly to SCP-5745, but may be assigned only in the event of an SCP-5745-1 manifestation in their given location.
Addendum 5745.1:
Species recovered and currently residing in Site-5745 in order of recovery (This list does not include the various species that have been terminated upon manifestation):

. 12 Triceratops horridus
. 6 Parasaurolophus walkeri
. 2 Apatosaurus marsh
. 13 Psittacosaurus mongoliensis
. 1 Tyrannosaurus rex
. 1 Sarcosuchus imperator5
. 1 Baryonyx walkeri
. 4 Dilophosaurus wetherilli
. 3 Balaur bondoc

Any and all eggs produced by SCP-5745-2 instances must immediately be destroyed to prevent overpopulation of the area.

Aerial view of Site-5745

Site-5745 has been created around Mt. Taranaki, New Zealand, to facilitate long-term containment of captured SCP-5745-2 instances. The area surrounding Mt. Taranaki is open to the public for tourism so as not to arouse suspicion, but permitted only on Foundation operated tours that follow a predetermined scouted route. Site-5745 is home to many natural species of modern day animals and plants that serve as food sources for the SCP-5745-2, however a herd of larger live creatures such as cattle are to be added to the area weekly for carnivorous instances to hunt. Large amounts of consumable greens are to be dropped into a small field in Site-5745 weekly, as herbivorous instances will completely consume the forest within a matter of years if left to fend for themselves. Though SCP-5745-2 often do not hunt each other, they will occasionally hunt and kill other instances, at which point, a new instance from the next rift event shall replace it.
The following is a log taken by Researcher Walker during his routinely inspection of the environment within Site-5745.

+ Show Exploration Log 5745-1

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08:00: Me and 5 men from Paleo-6 left the research building early to get a full day in. Walked right into a tree branch. Ouch.
09:14: First sign of an SCP-5745-2 instance. A few small creatures ran in front of us, but left as suddenly as they appeared. Probably the Balaurs, they are good at being unseen.
10:45: Heard a large sound resembling a bassoon. I believe it was a Parasaur, hopefully we will reach the herd soon. Also found a large kill with lots of crushed bones near a lake, possibly from the Sarcosuchus.
10:56: Heard it again but louder. Getting close.
12:00: Stopped for lunch.
13:01: Stumbled across the herd. It seems the Parasaurs, Apatasaurus and Psitticasaurus have formed a large herd. This is unexpected, all 3 species would have never interacted with each other (they lived millions of years apart) let alone created a herd. Survival in numbers I guess. Still no sign of the Triceratops.
14:00: Have been watching the herd for an hour. Leaving to look for something else.
14:28: Command alerted us that the cows would be dropped in about half an hour. Moving to the drop point.
14:56: Reached feeding point. Ready to observe feeding, team is on high alert.
15:11: Cows were dropped off 10 minutes ago, the Tyrannosaur made an appearance! It just shot out of the tree line, grabbed one off the ground and made off with it. It was in and out of the clearing in less than 10 seconds. Worrying to see it move that fast.
15:13: Soon after the Rex left, the Balaurs showed up. These things are tiny, about the size of a medium dog. They did some amazing stuff, one of them bit the cow's leg and while it was distracted, the other 2 jumped on its neck and finished it off. They remind me of wolves.
15:20: We caught the Balaurs trying to sneak up on us. Probably just curious, they like to watch what we do through the fence of the research lab, but the guys want to get moving. No show from the Baryonyx or Dilophosaurus. (Or Sarcosuchus, but that thing never gets seen).
16:00: Have been trekking for 40 minutes straight, taking a break.
16:12: Heard Triceratops mating call, moving in that direction.
17:40: Have been looking for that Trike for a while, might head back to base soon, it's getting darker.
18:23: You won't guess what happened. That wasn't a Triceratops. The damn Dilophosaurs were mimicking the calls of the Trikes and waiting for it to be night so they could ambush us. I don't know how they were able to replicate the sound, it sounded so loud. That's completely new evidence for how Dilophosaurs take down such large prey, they sneak up on it by luring it into a trap (take that SCP-1265 researchers!). One of them bit Geoffrey's leg, but I think he'll be fine. Moving back to Site Command.
18:45: We were followed back, I'm sure of it. The whole time on the walk back I felt like I was being watched. The others were confused, saying I'm crazy. I know something was there.

Note: Following Researcher Walker's bodily examination, it revealed that he had been bitten by a Dilophosaurus wetherilli. It is now believed that this species uses a form of mind-altering substance in its saliva to cause prey to become disoriented. Testing on this is currently underway.

Incident Logs: Due to the fact that there have been 114 recorded cases of SCP-5745-1 manifesting since the Foundation's existence, only manifestations since the year 2000 have been recorded here. They have been condensed into a single document for the purpose of organisation. (Last updated 05/04/2020)

+ Show SCP-5745 Incident Reports 

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Incident Report 5745-105:

Date: 11/04/2000
Rift Location: Hell Creek, USA (6th repeat incident)
Team Dispatched: Paleo-1 ‘Cavemen'
Notes: 3 live instances emerged, all hostile carnivores. 2 terminated, 1 recovered to Site-5745.

Incident Report 5745-106:

Date: 13/11/2001
Rift Location: Wiluna, Western Australia
Team Dispatched: Paleo-6 ‘Prehistoric Poachers'
Notes: 5 live instances emerged, 5 terminated, 2 MTF casualties

Incident Report 5745-107:

Date: 27/10/2003
Rift Location: Chernobyl Exclusion Zone
Team Dispatched: Paleo-3 ‘Swamp Waders'
Notes: 9 instances emerged, mostly herbivores but also 4 small carnivores in the middle of a hunt. Instances were deemed hostile, most carnivores were terminated. One escaped into the bushes, was not found.

Incident Report 5745-108:

Date: 19/11/2005
Rift Location: Woburn Forest, England
Team Dispatched: Paleo-3 ‘Swamp Waders'
Notes: 8 instances emerged, all small carnivores and one large deceased instance, which was being feasted upon by the others. Rift opened on the edges of popular holiday resort, made recovery difficult. Resort went into lockdown, all 7 instances eliminated, staff and guests amnestisized accordingly.

Incident Report 5745-109:

Date: 23/06/2010
Rift Location: Arabuko Sokoke National Reserve, Kenya
Team Dispatched: Paleo-5 ‘Park Rangers'
Notes: 2 instances emerged, both carnivorous cats. 2 casualties, both instances terminated.

Incident Report 5745-110:

Date: 01/05/2013
Rift Location: 69°44'52"S 131°12'24"E · 2.51 km, Antarctica (9th repeat incident)
Team Dispatched: Paleo-7 ‘Wooly Mammoths' and Paleo-6 'Prehistoric Poachers' as support
Notes: 11 instances emerged, one of the largest events recorded at this time.6 9 large mammals and 3 big cats hunting them. Big cats terminated, 2 large mammals recovered for study.

Incident Report 5745-111:

Date: 17/04/2015
Rift Location: Point Nemo, South Pacific Ocean (5th repeat incident)
Teams Dispatched: Paleo-2 ‘ACU' and Paleo-6 ‘Prehistoric Poachers'
Notes: 4 large aquatic reptiles emerged. 2 were implanted with tracking chips when rift was detected. Paleo-2 tracked and hunted 2 tagged instances to Costa Rican shoreline. Paleo-6 searched for 3 months before finding other 2 instances, which were terminated.

Incident Report 5745-112:

Date: 16/09/2017
Rift Location: Sebeș Formation, Romania
Team Dispatched: Paleo-3 ‘Swamp Waders'
Notes: 4 instances emerged. 3 very small carnivores with bird-like anatomy and 1 small lizard they seemed to be playing with. Lizard was killed by the 3, which were transferred to Site-5745.

Incident Report 5745-113:

Date:12/06/2019
Rift Location: Michigan, USA
Team Dispatched: Paleo-1 ‘Cavemen'
Notes: Rift manifested half a mile away from major population centre. 4 instances emerged, large herbivores that became hostile. One instance charged into a nearby neighbourhood before being terminated. All civilian witnesses amnestisized.

Incident Report 5745-114:

Date: 04/04/2020
Rift Location: Gobi Desert, Mongolia (7th repeat incident)
Team Dispatched: Paleo-4 ‘Desert Dwellers'
Notes: 12 instances emerged, 7 small herbivores and 5 small carnivores that appeared to be in the midst of a skirmish. All herbivores eliminated, 3 carnivores eliminated, 2 escaped. Escaped instances not found.

WARNING: LEVEL 4 CLEARANCE REQUIRED TO CONTINUE

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A graph displaying cases of SCP-5745-1 since 1910.

Addendum 5745.2: As can be seen in incident logs relating to SCP-5745, the frequency and severity of rift events is drastically rising. Previously, rifts would occur approximately once every 5-10 years. Within the last five years alone, 3 SCP-5745-1 materialisations have occurred. It is believed that this can be attributed to warming of Earth's atmosphere, as the most common time for materialisations in the past has been during warm periods of spring and summer. Senior Researcher Wood has made a statement about the future of SCP-5745 research that can be found in the following paragraph.
Statement from Senior Researcher Wood:
You have probably noticed that the last 3 rift manifestations were within a small time period, and you are correct. Current theories suggest that SCP-5745-1 manifestations are heightened by warm temperatures, as you also probably noticed, they are most common during warmer months. Rising CO² levels have been trapping solar radiation and warming our planet, meaning that rifts are appearing in higher frequencies and staying open for longer, making containment harder.
As more instances are emerging from SCP-5745-1, construction of a new site for long term containment is underway, Site-5745-2. It will be larger than the first and has a broad underground and above ground facility for containment of rarer Cenozoic species, including a large bay for marine life forms.
With the rising intensity of SCP-5745-1 manifestations, the possibility of an SK-Class Dominance Shift Scenario must be considered. These creatures were the prime species in their time, and if we are changing our environment to be more like theirs, their domination over us is a likely outcome. If the frequency of rifts continues to rise exponentially as it currently is, then we will soon run out of resources to contain the SCP-5745-2 instances. I am formally submitting a request for SCP-5745 to be reclassified as Keter in light of recent events.
Yours sincerely, Senior Researcher ████ Wood.

Footnotes
1. Balaur bondoc specimens.
2. For example, a species that originated from a desert environment in the past will not manifest in where it's remains were discovered, instead manifesting in a modern day desert.
3. Locations in which SCP-5745-1 has manifested once have not been included
4. A device that measures ionising radiation.
5. This specimen has not been sighted for some years, though carcasses resembling crocodilian kills have been discovered.
6. Now out of date following Incident 5745-114.

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