Best Asaphida

Cyclopyge is a genus of trilobites from the Ordovician Period, recognized by exceptionally large compound eyes occupying much of the sides of the cephalon. It belonged to a group commonly interpreted as pelagic or deep-water trilobites rather than animals confined to the seafloor. The enlarged visua...

Carolinites is a genus of Ordovician trilobite characterized by very large compound eyes that provided a broad field of vision. Its remains occur in geographically widespread marine deposits, a distribution commonly interpreted as evidence that it lived in the open water column rather than remaining...

Neoasaphus is a type of trilobite fossil belonging to the Asaphida order and Asaphidae family. Primarily found in Ordovician deposits of Russia, particularly within the Baltic region, it’s notable for exceptionally well-preserved eyes. These eyes, often encased in three-dimensional calcite, reveal e...

Isotelus rex is a remarkably large species of trilobite belonging to the Asaphida order. Recovered from Ordovician-age rocks in Manitoba, Canada, it represents the largest complete trilobite fossil ever discovered reaching approximately 72 centimeters in length. This specimen provides crucial insigh...

Neoasaphus kowalewskii is a fossil trilobite discovered in Russia’s Ordovician deposits. This species is notable for its exceptionally long stalks supporting its eyes, a unique feature among trilobites. Its stalked-eyes provide valuable insight into the sensory capabilities of asaphid arthropods dur...

Asaphus is a genus of trilobite from the Ordovician period, belonging to the family Asaphidae, with fossils primarily found in the Baltic region including Russia, Estonia, and Sweden. Several species within the genus developed prominent stalked eyes, with Asaphus kowalewskii bearing eyestalks that c...

Isotelus is an extinct genus of large asaphid trilobite that lived during the Ordovician period. It possessed a smooth, relatively featureless exoskeleton and lacked the prominent spines seen in other trilobite genera. The species Isotelus rex, discovered in Manitoba, Canada, is recognized as one of...

Ordovician to Silurian illaenid trilobite characterized by a smooth, highly convex exoskeleton with greatly reduced segmental surface definition.

Ordovician to Silurian trilobite of the family Raphiophoridae with a streamlined body form, known from shallow to mid-shelf marine deposits of Laurentia and Baltica.

Pseudoasaphus is an extinct genus of asaphid trilobite that inhabited the marine environments of Baltica during the Ordovician period. Closely related to the genus Neoasaphus, these trilobites are predominantly found in the fossil records of Baltic Russia. They are particularly notable for their pro...

Ogygopsis is an extinct genus of trilobite from the Middle Cambrian period, belonging to the order Corynexochida. Specimens are predominantly recovered from the Burgess Shale formation in Yoho National Park, British Columbia, Canada. It is recognized as one of the most common and frequently encounte...

Early Ordovician trilobite known from Baltic and Gondwanan deposits, representing an early post-Cambrian radiation within its respective trilobite lineage.

Ogygiocaris is a large Ordovician asaphid trilobite genus found in Wales and Scandinavia, with a broad, flat body suited to benthic life.

Ordovician asaphid trilobite from Baltica, known from Scandinavian and Baltic limestones and characterized by a smooth, broadly ovoid dorsal outline.

Ogygiocarella is an Ordovician trilobite genus from Wales, historically significant as one of the earliest trilobites illustrated, by Edward Lhwyd in 1698.

Late Cambrian ptychopariid trilobite from North America, known from Upper Cambrian formations of the Great Basin region of the western United States.

An Ordovician trilobite of the family Ogygitidae, known from Europe and found in Llanvirn to Caradoc-age rocks across Gondwanan and peri-Gondwanan terranes.

A Silurian trilobite with a highly inflated, smooth exoskeleton and indistinct segmentation, found in reef-associated carbonates of North America and Europe.

Illaenus is an Ordovician-Silurian trilobite genus with a broad smooth cephalon and large eyes, well represented in the Baltic region.

Symphysurus is an Ordovician trilobite genus found in Scandinavia and China, notable as a member of the family Symphysurinidae with a wide geographic range.

A Silurian illaenid trilobite from Europe, Ectillaenus was described by Salter in 1866 and is recognized by its broad cephalon and large thorax.

Nileus is an Ordovician trilobite genus with a smooth, inflated cephalon and large eyes, common in the Ordovician limestones of Scandinavia.

Ordovician asaphid trilobite widely distributed across Gondwana and peri-Gondwanan terranes, serving as an important tool for intercontinental biostratigraphic correlation.

A Late Ordovician trilobite common in uppermost Ordovician strata of Europe, frequently cited in studies of the end-Ordovician mass extinction as it vanishes near the horizon.

An Ordovician trilobite from the Baltic region and South America, Nobiliasaphus is notable for its large, prominent compound eyes.

Ordovician trilobite from the Anglo-Welsh basin used as a biostratigraphic index fossil for correlating Lower Ordovician strata across Europe.

Ordovician trilobite genus known from European strata, a member of the diverse shallow-marine benthos of the period, with relatively limited described taxonomic material.

Ordovician trilobite genus known from European strata, a member of the diverse mid-Paleozoic shallow-marine benthos preserved in contemporaneous shelf and slope deposits.

An Ordovician trilobite from Scandinavia and North America, Apatokephalus was described by Brøgger in 1898 and is known for its spiny cephalon.