swap_horiz Isotelus rex Alternatives
Looking for alternatives to Isotelus rex? Compare the top Trilobite options ranked by our AI scoring system.
Isotelus rex
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...
apps Top Isotelus rex Alternatives
The top alternative to Isotelus rex in 2026 is Neoasaphus with a score of 9.2/10, followed by Neoasaphus kowalewskii (9.0) and Asaphus (8.6).
Neoasaphus
Neoasaphus is a type of trilobite fossil belonging to the Asaphida order and Asaphidae family. Primarily found in Ordovi...
Neoasaphus kowalewskii
Neoasaphus kowalewskii is a fossil trilobite discovered in Russia’s Ordovician deposits. This species is notable for its...
Asaphus
An Ordovician trilobite from the Baltic region, with species such as A. kowalewskii bearing stalked eyes up to 6 cm tall...
Isotelus
A large Ordovician trilobite from North America; Isotelus rex from Manitoba, Canada, ranks among the largest trilobites...
Ogygopsis
A Middle Cambrian trilobite common in the Burgess Shale of British Columbia, Canada, and one of the most frequently enco...
Pseudoasaphus
An Ordovician asaphid trilobite from Baltic Russia, closely related to Neoasaphus and also known for three-dimensionally...
Ogygiocaris
Ogygiocaris is a large Ordovician asaphid trilobite genus found in Wales and Scandinavia, with a broad, flat body suited...
Ogygiocarella
Ogygiocarella is an Ordovician trilobite genus from Wales, historically significant as one of the earliest trilobites il...
Ogygites
An Ordovician trilobite of the family Ogygitidae, known from Europe and found in Llanvirn to Caradoc-age rocks across Go...
Symphysurus
Symphysurus is an Ordovician trilobite genus found in Scandinavia and China, notable as a member of the family Symphysur...
Illaenus
Illaenus is an Ordovician-Silurian trilobite genus with a broad smooth cephalon and large eyes, well represented in the...
Nileus
Nileus is an Ordovician trilobite genus with a smooth, inflated cephalon and large eyes, common in the Ordovician limest...
Ectillaenus
A Silurian illaenid trilobite from Europe, Ectillaenus was described by Salter in 1866 and is recognized by its broad ce...
Mucronaspis
A Late Ordovician trilobite common in uppermost Ordovician strata of Europe, frequently cited in studies of the end-Ordo...
Asaphellus
Ordovician asaphid trilobite widely distributed across Gondwana and peri-Gondwanan terranes, serving as an important too...
Nobiliasaphus
An Ordovician trilobite from the Baltic region and South America, Nobiliasaphus is notable for its large, prominent comp...
Ormathops
Ordovician trilobite from the Anglo-Welsh basin used as a biostratigraphic index fossil for correlating Lower Ordovician...
Kainella
Early Ordovician trilobite used as a key index fossil for basal Ordovician strata, known from North America and other pa...
Synphoriodes
Ordovician trilobite genus known from European strata, a member of the diverse shallow-marine benthos of the period, wit...
Acrocephalaspis
A Cambrian trilobite genus distinguished by an elongated, pointed glabella, known from Middle Cambrian deposits and clas...
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