swap_horiz Irvingella 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

Elrathia kingi

Elrathia kingi is a common trilobite fossil discovered primarily in the Middle Cambrian Wheeler Shale of Utah. It repres...

Utah Cambrian Abundant Ptychopariida

9.2 Excellent

3

Phacops

A Devonian trilobite with distinctive schizochroal compound eyes, used by paleontologist Niles Eldredge in the 1970s as...

Iconic North American Devonian Phacopida

8.7 Great

4

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

5

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

6

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

7

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

8

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

9

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

10

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

11

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

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

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

14

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

15

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

16

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

17

Eurekia

Cambrian trilobite known from deposits in Nevada and other western North American localities, contributing to reconstruc...

Small North American Ptychopariida Late Cambrian

5.0 Mediocre

18

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

19

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

20

Loganopeltoides

A Cambrian trilobite genus morphologically similar to Loganopeltis, known from Lower to Middle Cambrian deposits in Asia...

North American Cambrian Corynexochida Zone Fossil

4.8 Poor