swap_horiz Eurekia Alternatives

1

Elrathia

A Middle Cambrian trilobite from the Wheeler Shale of Utah, USA, so abundantly preserved that it is among the most comme...

Utah North American Cambrian Abundant

7.5 Good

2

Dikelocephalus

Dikelocephalus is a large Late Cambrian trilobite genus from Wisconsin, USA, notable for its size and abundance in the S...

Large North American Ptychopariida Late Cambrian

7.0 Good

3

Olenus

An Upper Cambrian trilobite from Scandinavia and Wales that serves as the index fossil for the Olenus biozone, associate...

Scandinavian Ptychopariida Late Cambrian Olenidae

6.5 Fair

4

Crepicephalus

Crepicephalus is a Late Cambrian trilobite genus from North America that serves as the namesake of the Crepicephalus Bio...

North American Ptychopariida Late Cambrian Zone Fossil

6.2 Fair

5

Ptychaspis

Ptychaspis is a Late Cambrian trilobite genus from North America whose name defines the Ptychaspid biomere, a key concep...

North American Late Cambrian Zone Fossil Ptychaspidida

6.0 Fair

6

Elvinia

Elvinia is a Late Cambrian trilobite genus from North America used as an index fossil for the Elvinia Biozone in the upp...

North American Ptychopariida Late Cambrian Zone Fossil

6.0 Fair

7

Saukia

Saukia is a Late Cambrian trilobite genus belonging to family Saukiidae, found in North America and Asia, and associated...

North American Ptychopariida Late Cambrian Zone Fossil

6.0 Fair

8

Dionide

An Ordovician trilobite of the family Dionididae, known from European Ordovician deposits and characterized by its disti...

European Small Ordovician Ptychopariida

6.0 Fair

9

Irvingella

Irvingella is a Late Cambrian trilobite genus valued for intercontinental biostratigraphic correlation, with occurrences...

North American Ptychopariida Late Cambrian Zone Fossil

5.8 Mediocre

10

Bonnia

A Middle Cambrian trilobite from North America, known from Cambrian strata of the western United States and used in regi...

Small North American Cambrian Ptychopariida

5.8 Mediocre

11

Sao

Cambrian trilobite from Bohemia described by Joachim Barrande in his landmark 19th-century monograph on Silurian fauna,...

Small Bohemian Cambrian Ptychopariida

5.8 Mediocre

12

Parabolina

Late Cambrian trilobite widely used as a biostratigraphic index fossil for upper Cambrian zones, particularly in Scandin...

Scandinavian Ptychopariida Late Cambrian Olenidae

5.5 Mediocre

13

Agraulos

A Cambrian ptychopariid trilobite described by Barrande in 1846, Agraulos is known primarily from Middle Cambrian deposi...

Small Bohemian Cambrian Ptychopariida

5.5 Mediocre

14

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

15

Parabolinella

Late Cambrian trilobite closely related to Parabolina, known from Scandinavia and employed in upper Cambrian biostratigr...

Scandinavian Ptychopariida Late Cambrian Olenidae

5.2 Mediocre

16

Dunderbergia

Dunderbergia is a Late Cambrian trilobite from the Great Basin of Nevada, USA, named after Dunderberg Peak in the Eureka...

Small North American Ptychopariida Late Cambrian

5.2 Mediocre

17

Atops

A Late Cambrian trilobite genus from North America, classified within the order Ptychopariida and known from Upper Cambr...

Small North American Ptychopariida Late Cambrian

5.2 Mediocre

18

Chancia

Upper Cambrian trilobite from North America known from Franconian Stage deposits, used in biostratigraphic correlation o...

Small North American Cambrian Ptychopariida

5.0 Mediocre

19

Microparia

Small Cambrian trilobite belonging to family Micropariidae, known from North American and European deposits within order...

Small Cambrian Ptychopariida Zone Fossil

4.8 Poor

20

Maryvillia

Maryvillia is a Cambrian trilobite from eastern North America, named after Maryville, Tennessee, where early specimens w...

Small North American Ptychopariida Late Cambrian

4.8 Poor