Primeval

Extinct

 * Precambrian Worm
 * Haikouichthys
 * Eolympia
 * Wiwaxia
 * Anomalocaris
 * Opabinia
 * Paterinata
 * Paradoxides
 * Pikaia
 * Cheirurus
 * Megalograptus
 * Cameroceras
 * Isotelus
 * Caleidocrinus
 * Cryptomartus
 * Silurian Millipede
 * Silurian Scorpion
 * Elegestolepis
 * Brontoscorpio
 * Pterygotus
 * Mixopterus
 * Eurypterus
 * Cephalaspis
 * Hynerpeton
 * Dunkleosteus
 * Hyneria
 * Ichthyostega
 * Coccosteus
 * Ammonite
 * Cladida
 * Cladoselache
 * Stethacanthus
 * Edestus
 * Pulmonoscorpius
 * Eogyrinus
 * Crassigyrinus
 * Pulmonoscorpius
 * Rhizodus
 * Hibbertopterus
 * Protodonata
 * Megarachne
 * Mesothelae
 * Proterogyrinus
 * Hylonomus
 * Falcatus
 * Meganeura
 * Arthropleura
 * Eryops
 * Platyhystrix
 * Diplocaulus
 * Cacops
 * Edaphosaurus
 * Dimetrodon
 * Prionosuchus
 * Scutosaurus
 * Estemmenosuchus
 * Anoplosuchus
 * Coelurosauravus
 * Archosaurus
 * Protorosaurus
 * Coelacanthus
 * Dicynodon
 * Helicoprion

Vulnerable

 * Atlantic Horseshoe Crab

Least Concern

 * Scorpionfly

Near Threatened

 * Blue Ground Beetle

Data Deficient

 * Armatobalanus

Hybrid Animals

 * Tyrannops

Precambrian Period

 * Volcanoes
 * The Lavascape

Cambrian Period

 * Burgless Shale
 * The Cambrian Explosion

Ordovician Period

 * Headlands
 * Seasides and Beaches

Silurian Period

 * Silurian Desert
 * The Silurian Desert
 * Cooksonias

Devonian Period

 * Devonian Marshlands

Carboniferous Period

 * Coal Forest

Permian Period

 * Permian Wastelands
 * The Forest of Dean
 * Permian Hills
 * Australian Desert

Time Periods

 * Precambrian
 * Cambrian
 * Ordovician
 * Silurian
 * Devonian
 * Carboniferous
 * Permian

Era

 * Palaeozoic

Continents

 * Australia
 * Africa
 * Asia
 * Antarctica
 * Europe
 * South America
 * North America

Oceania

 * Australia
 * Antarctica

Afro-Eurasia

 * Africa
 * Asia
 * Europe

America

 * North America
 * South America

Oceania

 * Australia
 * Antarctica
 * Zealandia

Afro-Eurasia

 * Algeria
 * Angola
 * Benin
 * Botswana
 * Burkina Faso
 * Burundi
 * Cameroon
 * Cape Verde
 * Central African Republic
 * Chad
 * Comoros
 * Congo
 * Djibouti
 * Egypt
 * Equatorial Guinea
 * Eritrea
 * Eswatini
 * Ethiopia
 * Gabon
 * The Gambia
 * Ghana
 * Guinea
 * Guinea-Bissau
 * Ivory Coast
 * Kenya
 * Lesotho
 * Liberia
 * Libya
 * Madagascar
 * Malawi
 * Mali
 * Mauritania
 * Mauritius
 * Mayotte
 * Morocco
 * Mozambique
 * Namibia
 * Niger
 * Nigeria
 * Reunion
 * Rwanda
 * Sahrawi Arab Democratic Republic‎
 * Saint Helena, Ascension and Tristan da Cunha
 * São Tomé and Príncipe‎
 * Senegal
 * Seychelles
 * Sierra Leone
 * Somalia
 * Somaliland
 * South Africa
 * South Sudan
 * Sudan
 * Tanzania
 * Togo
 * Tunisia
 * Uganda
 * Western Sahara
 * Zambia
 * Zimbabwe
 * Albania
 * Andorra
 * Armenia
 * Azerbaijan
 * Belarus
 * Belgium
 * Bosnia and Herzegovina
 * Bulgaria
 * Croatia
 * Cyprus
 * Czech Republic
 * Denmark
 * Kingdom of Denmark
 * Estonia
 * Finland
 * France
 * Georgia
 * Germany
 * Greece
 * Hungary
 * Iceland
 * Republic of Ireland
 * Italy
 * Kazakhstan
 * Kosovo
 * Latvia
 * Liechtenstein
 * Lithuania
 * Luxembourg
 * North Macedonia
 * Malta
 * Moldova
 * Monaco
 * Montenegro
 * Netherlands
 * Norway
 * Poland
 * Portugal
 * Romania
 * Russia
 * San Marino
 * Serbia
 * Slovakia
 * Slovenia
 * Spain
 * Sweden
 * Switzerland
 * Turkey
 * Ukraine
 * United Kingdom
 * Vatican City
 * Afghanistan
 * Armenia
 * Azerbaijan
 * Bahrain
 * Bangladesh
 * Bhutan
 * Brunei
 * Cambodia
 * China
 * Cyprus
 * East Timor
 * Egypt
 * Georgia
 * India
 * Iran
 * Iraq
 * Israel
 * Japan
 * Jordan
 * Kazakhstan
 * Kuwait
 * Krygyzstan
 * Indonesia
 * Laos
 * Lebanon
 * Malaysia
 * Maldives
 * Mongolia
 * Myanmar
 * Nepal
 * Northern Cyprus
 * Oman
 * Pakistan
 * Philippines
 * Qatar
 * Russia
 * Saudi Arabia
 * Singapore
 * Sri Lanka
 * Syria
 * Tajikstan
 * Thailand
 * Turkey
 * Turkmenistan
 * United Arab Emirates
 * Uzbekistan
 * Vietnam
 * Yemen

America

 * Alabama
 * Alaska
 * Arizona
 * Arkansas
 * Antigua and Barbuda
 * Belize
 * California
 * Colorado
 * Connecticut
 * Canada
 * Costa Rica
 * Cuba
 * Delaware
 * Dominica
 * Dominican Republic
 * El Salvador
 * Florida
 * Georgia
 * Guatemala
 * Hawaii
 * Honduras
 * Haiti
 * Idaho
 * Illnois
 * Indiana
 * Iowa
 * Jamaica
 * Kansas
 * Kentucky
 * Louisiana
 * Maine
 * Mexico
 * Maryland
 * Massachusetts
 * Michigan
 * Minnesota
 * Mississippi
 * Missouri
 * Montana
 * Nebraska
 * Nevada
 * New Hampshire
 * New Jersey
 * New Mexico
 * New York
 * North Carolina
 * North Dakota
 * Nicaragua
 * Ohio
 * Oklahoma
 * Oregon
 * Pennsylvania
 * Panama
 * Rhode Island
 * South Carolina
 * South Dakota Saint
 * Kitts and Nevis
 * Saint Lucia
 * Saint Vincent and the Grenadines
 * Tennessee
 * Texas
 * The Bahamas
 * Trinidad and Tobago
 * Utah
 * United States
 * Vermont
 * Virginia
 * Washington
 * West Virginia
 * Wisconsin
 * Wyoming
 * Argentina
 * Bolivia
 * Brazil
 * Chile
 * Colombia
 * Ecuador
 * Guyana
 * Paraguay
 * Peru
 * Suriname
 * Uruguay
 * Venezuela