swap_horiz Isotelus Alternatives

1

Isotelus maximus

Known from Late Ordovician rocks in eastern North America, Isotelus maximus was a large asaphid trilobite. Its broad, fl...

Large Ohio Ordovician Asaphida

9.05 Excellent

2

Cyclopyge

Exceptionally large compound eyes distinguish Cyclopyge, a genus of Ordovician trilobites. The eyes occupy much of the s...

Pelagic Rare Ordovician Asaphida

8.88 Great

3

Carolinites

Carolinites is a genus of Ordovician trilobite characterized by very large compound eyes that provided a broad field of...

Pelagic Rare Ordovician Asaphida

8.62 Great

4

Neoasaphus

Neoasaphus is a type of trilobite fossil belonging to the Asaphida order and Asaphidae family. Primarily found in Ordovi...

Russian Ordovician Asaphida Asaphidae

8.46 Great

5

Isotelus rex

Isotelus rex is a remarkably large species of trilobite belonging to the Asaphida order. Recovered from Ordovician-age r...

Canadian Ordovician Asaphida Asaphidae

8.37 Great

6

Neoasaphus kowalewskii

Neoasaphus kowalewskii is a fossil trilobite discovered in Russia’s Ordovician deposits. This species is notable for its...

Russian Iconic Ordovician Asaphida

8.28 Great

7

Asaphus

Asaphus is a genus of trilobite from the Ordovician period, belonging to the family Asaphidae, with fossils primarily fo...

Russian Smooth Ordovician Asaphida

7.91 Good

8

Cryptolithus

Cryptolithus is an extinct genus of trinucleid trilobite that lived during the Ordovician period. It is distinguished by...

Blind North American Ordovician Trinucleida

7.64 Good

9

Ceraurus

Ceraurus is an extinct genus of cheirurid trilobites that thrived in shallow marine environments during the Ordovician p...

North American Ordovician Phacopida Cheiruridae

7.36 Good

10

Bumastoides

Bumastoides is an extinct genus of illaenid trilobite that existed during the Ordovician and Silurian periods. It is cha...

Smooth Globose Enrolled Asaphida

7.18 Good

11

Amphion

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

Smooth Rare Scandinavia Ordovician

6.61 Fair

12

Ogygites

Ogygites is an extinct genus of Ordovician trilobites often placed within Ogygiidae, a group in the order Asaphida. It i...

European Smooth Ordovician Asaphida

6.26 Fair

13

Symphysurus

Symphysurus is an Ordovician genus of trilobites in the family Symphysurinidae. Its fossils are known from regions inclu...

European Smooth Ordovician Asaphida

5.70 Mediocre

14

Nileus

Nileus is a genus of trilobites that lived during the Ordovician Period. It belongs to the family Nilaeidae and is recog...

Smooth Scandinavian Ordovician Asaphida

5.52 Mediocre

15

Ectillaenus

Ectillaenus is a genus of illaenid trilobites known from the Ordovician and Silurian fossil record of Europe. It was des...

European Smooth Ordovician Asaphida

5.52 Mediocre

16

Asaphellus

Asaphellus is an extinct genus of asaphid trilobites from the Ordovician Period. Its fossils are widely reported from Go...

North African Smooth Ordovician Asaphida

5.34 Mediocre

17

Ormathops

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

North African Smooth Ordovician Asaphida

4.78 Poor

18

Nileoides

Nileoides is an extinct genus of asaphid trilobites from the Ordovician Period. It is recorded from the Lower to Middle...

European Smooth Ordovician Asaphida

4.60 Poor

19

Synphoriodes

Ordovician trilobite genus known from European strata, a member of the diverse shallow-marine benthos of the period, wit...

European Smooth Ordovician Asaphida

4.60 Poor

20

Acrocephalaspis

Acrocephalaspis is an extinct genus of Cambrian trilobites placed in the family Acrocephalitidae and generally treated w...

North African Smooth Ordovician Asaphida

4.42 Poor