Stygimoloch

Release Version: Base Game

Classification

DietHerbivore
HabitatTerrestrial
EraLate Cretaceous
FamilyPachycephalosauridae
GenusStygimoloch
Bio GroupSmall Herbivore

Size

Height (m)1.7
Length (m)3.5
Weight (kg)78

Rating

Base Appeal65
Appeal (Per $1MM)311.2
Appeal (Per Hectare)316.0
Base Dominance52
Base AppealAppeal (Per $1MM)Appeal (Per Hectare)Base Dominance
Stygimoloch
Median

Stats

Security Rating4
Lifespan44 - 88
Resilience130
Attack34
Defence18
Medical Dart Resistance60
Sedative Resistance60
Poison Resistance115

Environmental Needs

Comfort50% , 70% , 90%
Forest (m2)150031%
Water (m2)3006%
Ground Leaf (m2)300063%

Cohabitation Preferences

Social Group3 - 4
Ideal Population3 - 10
Area Need Growth+20%
Likes
Liked By
Dislikes
Disliked By
Neutral
None
Fight
Hunt
Pack Hunt

Behaviors are scripted in game files but are not guaranteed to happen. Dominance, territory, and traits determine whether they would actually fight.

Unlock requirements

Unlocked by retrieving the fossil from one of the following dig sites:

Dig SitesLocationsFossilsRequirements (Logistics)DurationCostScientists (Max)
Frenchman Formation ANorth AmericaCanadaSaskatchewan
fossil_pachycephalo_commonx1
fossil_pachycephalo_uncommonx2
fossil_pachycephalo_rarex2
404:00$85,0003
Hell Creek Formation BNorth AmericaUSAMontana
fossil_pachycephalo_commonx2
fossil_pachycephalo_uncommonx1
fossil_pachycephalo_rarex1
604:00$400,0003
Lance Formation Site ANorth AmericaUSAWyoming
fossil_pachycephalo_commonx2
fossil_pachycephalo_uncommonx1
104:00$120,0003

Synthesis

Eggs2 - 7
Requirements (Genetics)4
Scientists (Max)3
Duration00:30
Cost$94,000

Incubation

Requirements (Welfare)4
Scientists (Max)3
Duration01:30
Cost$188,000

Genome Trait Chances

Genetic Mods (Max)5
Sociability-25%Antisocial
Tolerance25%Tolerant
Habituation9%Docile
Nocturnal4%Nocturnal

Disease

ImmuneNone
SusceptibleNone

Description

Stygimoloch is an herbivorous dinosaur from the pachycephalosaur family that lived in the western United States around 65-68m years ago. This genus can grow to over 3m in length and is easily recognizable thanks to the large bony horns on the back of its head, which it uses to defend itself from predators. Its name translates to ‘Styx devil’, a reference to the river that separates Earth and the Underworld in Greek mythology.

Discovery

The history of Stygimoloch is somewhat controversial, with many competing views about its classification. The first Stygimoloch was discovered towards the end of the 19th Century in the Hell Creek Formation, Texas, but it wasn’t officially named until 1982, when Hans-Dieter Sues and Peter Galton formally described it as a new genus. Some experts now believe that the specimens found are in fact those of juvenile Pachycephalosaurus.

Paleoecology

Stygimoloch co-existed with many other dinosaurs during the Late Cretaceous period, roaming the forests and plains of North America alongside Edmontosaurus, Triceratops and Ankylosaurus, as well as the apex predator Tyrannosaurus.

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