swap_horiz Trimerus Alternatives

1

Phacops rana

Phacops rana is an iconic Devonian trilobite found primarily in eastern North America. Its exceptionally large, compound...

Iconic North American Devonian Phacopida

9.3 Excellent

2

Deiphon

Deiphon represents a notable Silurian trilobite genus belonging to the Cheiruridae family. This European fossil, discove...

European Globose Silurian Phacopida

9.0 Excellent

3

Calymene blumenbachi

Calymene blumenbachi represents an iconic Silurian trilobite discovered primarily in European deposits dating back to th...

Iconic European Silurian Phacopida

8.8 Great

4

Phacops

Phacops is a Devonian trilobite species originating from North America. It’s notable for its unique schizochroal eyes, c...

Iconic North American Devonian Phacopida

8.7 Great

5

Arctinurus

Large Silurian trilobite from the Rochester Shale of New York State, notable for its distinctive stellate outline and fr...

Large North American Silurian Lichida

8.5 Great

6

Isotelus

A large Ordovician trilobite from North America; Isotelus rex from Manitoba, Canada, ranks among the largest trilobites...

Smooth North American Ordovician Asaphida

8.3 Great

7

Encrinurus

A Silurian trilobite recognized by its strongly tuberculate exoskeleton and prominent granulated glabella, found across...

European Silurian Phacopida Tuberculate

8.2 Great

8

Dalmanites

A Silurian trilobite recognized by its elongated pygidial spine and well-developed eyes, found across North America, Eur...

North American Silurian Phacopida Tail Spine

8.0 Great

9

Ceraurus

An Ordovician cheirurid trilobite from North America distinguished by prominent genal spines and multiple pointed pygidi...

North American Ordovician Phacopida Cheiruridae

8.0 Great

10

Calymene

A Silurian trilobite widespread in Europe and North America, nicknamed the Dudley Bug from classic outcrops in Silurian...

European Silurian Phacopida Enrolled

7.8 Good

11

Flexicalymene

An Ordovician trilobite abundant in the Cincinnati region of the USA, frequently preserved enrolled and found in great n...

North American Ordovician Phacopida Enrolled

7.5 Good

12

Huntonia

Devonian phacopid trilobite from Oklahoma and surrounding North American states, recognized by its smoothly inflated gla...

North American Devonian Spiny Phacopida

7.0 Good

13

Bumastus

A Silurian trilobite with a highly inflated, smooth exoskeleton and indistinct segmentation, found in reef-associated ca...

Smooth Silurian Asaphida Inflated

6.8 Fair

14

Dipleura

Dipleura is a Devonian trilobite genus from the Hamilton Group of New York State, notable for being among the largest tr...

Large North American Devonian Phacopida

6.8 Fair

15

Homalonotus

Homalonotus is a Silurian-Devonian trilobite genus with a smooth carapace and elongated thorax, first described from Eur...

European Smooth Silurian Phacopida

6.5 Fair

16

Gravicalymene

A Silurian calymenid trilobite found in Europe and North America, distinguished by its robust, heavily calcified glabell...

European Silurian Phacopida Enrolled

6.5 Fair

17

Coronocephalus

A Silurian encrinurid trilobite best known from China, where C. rex serves as a significant index fossil for Silurian bi...

Chinese Silurian Phacopida Tuberculate

6.5 Fair

18

Acaste

Silurian to Devonian phacopid trilobite common in European marine deposits, recognized for its large schizochroal compou...

European Silurian Phacopida Schizochroal Eyes

6.5 Fair

19

Paciphacops

Devonian phacopid trilobite endemic to North America, recognized by its inflated glabella and large schizochroal eyes, c...

North American Devonian Phacopida Schizochroal Eyes

6.5 Fair

20

Acernaspis

Silurian dalmanitid trilobite distributed across North America and Europe, recognized by schizochroal eyes and a spinose...

Small North American Silurian Phacopida

5.3 Mediocre