List of the Paleozoic life of Alaska

This list of the Paleozoic life of Alaska contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alaska and are between 538.8 and 252.17 million years of age.

Fossil of the Silurian-Middle Devonian trilobite Acanthopyge

Fossilized shell of the Middle Devonian ammonoid cephalopod, Agoniatites

Fossilized shell of the Late Ordovician-Carboniferous brachiopod Atrypa

Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten

Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon

Fossil of the Silurian trilobite Calymene blumenbachii

Fossil of the Ordovician-Silurian tabulate coral Catenipora

Fossil of the Cambrian-Middle Devonian trilobite Cheirurus

Fossil of the Carboniferous tabulate coral Cladochonus

Assemblage of fossils of the Cambrian graptolite Climacograptus

Fossilized shell of the Late Devonian-Permian brachiopod Composita

Fossilized shell of the Late Cretaceous brachiopod Crania

Fossilized foliage from the Carboniferous seed fern Cyclopteris

Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras

Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites

Shell of a Dentalium tusk shell

Fossil of the Middle Ordovician graptolite Didymograptus

Cambrian graptolite Diplograptus

Fossilized foliage from the Early-Late Devonian club moss relative Drepanophycus

Fossils at different stages of development of the Cambrian trilobite Elrathia

Fossilized shell of the Silurian-Permian sea snail Euomphalus

Fossil of the Late Ordovician-Permian tabulate coral Favosites

Assemblage of fossils of Silurian-Permian fusulinid foraminiferans

Fossil of the Early-Late Ordovician trilobite Geragnostus

Multiple views of a fossil of the Ordovician horn coral Grewingkia

Fossil of the Devonian trilobite Harpides

Fossil of the Cambrian trilobite Hemirhodon

Fossilized shells of the Middle Ordovician-Permian nautiloid cephalopod Kionoceras

Fossil of the Cambrian trilobite Kootenia

Illustration of a fossil of the Cambrian trilobite Lejopyge laevigata

Fossilized shell of the Devonian-modern marine bivalve Lucina

Illustration (lower right, entry 15) of a fossilized shell in front and side views of the Silurian-Late Devonian brachiopod Meristella

Fossils of the Early Devonian graptolite Monograptus

Fossilized shell of the Devonian brachiopod Mucrospirifer

Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis

Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer

Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula

Fossil of the Cambrian trilobite Pagetia

Fossil of the Cambrian trilobite Paradoxides

Fossils of the Late Devonian-Permian fern-like fronds Pecopteris

Fossilized shell of the Silurian-Middle Devonian brachiopod Pentamerus

Fossil of the Cambrian trilobite Phalagnostus

Fossil of the Early Ordovician graptolite Phyllograptus

Fossilized shell of the Silurian-Early Triassic sea snail Platyceras

Various conodont elements, including those of Polygnathus (specimens 8, 10, and 11)

Restoration of the Silurian trilobite Proetus

Fossil of the Silurian-Devonian horn coral Pseudoamplexus

Fossilized shell of a Pseudomelania sea snail

Fossil of the primitive Devonian vascular plant Psilophyton

Fossil of the Early Ordovician-Permian benthic alga Receptaculites

Fossilized shell of the Silurian-Eocene articulate brachiopod Rhynchonella

Fossils of the red alga Solenopora

Assemblage of fossils of the Ordovician-Triassic blue-green alga Sphaerocodium

Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer

Modern shells of the polychaete worm Spirorbis

Fossilized shell of the Ordovician-Silurian brachiopod Strophomena

Fossil of the Devonian tabulate coral Syringopora

Fossils of the Devonian plant stem morphogenus Taeniocrada

Fossilized shell of the Early Ordovician-Late Devonian probable mollusc Tentaculites

Restoration showing the top (left) and underside of the Late Ordovician trilobite Triarthrus

Restoration of the Permian shark Wodnika