swap_horiz Sao Alternatives

1

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

2

Paradoxides

A large Middle Cambrian trilobite serving as a key global biostratigraphic index fossil, with specimens exceeding 50 cm...

Iconic Large Bohemian Cambrian

8.2 Great

3

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

4

Trilobites walcotti

A trilobite species named in honor of Charles Doolittle Walcott (1850–1927), the American paleontologist renowned for di...

Iconic Historical Cambrian Ptychopariida

7.5 Good

5

Conocoryphe

Middle Cambrian trilobite notable for the complete absence of eyes, abundant in Bohemian and Iberian Cambrian deposits a...

Blind Bohemian Cambrian Ptychopariida

6.8 Fair

6

Ellipsocephalus

A Cambrian trilobite genus first described from Bohemia by Joachim Barrande; its type species Ellipsocephalus hoffi is a...

Smooth Bohemian Cambrian Ptychopariida

6.5 Fair

7

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

8

Ptychoparia

Middle Cambrian trilobite from Bohemia that serves as the type genus of order Ptychopariida, one of the most taxonomical...

Bohemian Cambrian Ptychopariida Ptychopariidae

6.0 Fair

9

Hydrocephalus

A Cambrian trilobite described by Barrande in 1852, Hydrocephalus is notable for its inflated, bulbous glabella from the...

Bohemian Cambrian Redlichiida Paradoxididae

6.0 Fair

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

Judomia

Cambrian trilobite from Siberia used as an index fossil for the Botomian Stage, aiding global correlation of Lower Cambr...

Siberian Cambrian Ptychopariida Zone Fossil

5.8 Mediocre

12

Alokistocare

Middle Cambrian marjumiid trilobite from North America, common in carbonate platform deposits of the western interior Un...

North American Cambrian Ptychopariida Zone Fossil

5.8 Mediocre

13

Ehmaniella

Middle Cambrian marjumiid trilobite from North America whose fossils serve as index fauna for stratigraphic zones in the...

Small North American Cambrian Ptychopariida

5.8 Mediocre

14

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

15

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

16

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

17

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

18

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

19

Bailiella

A Middle Cambrian trilobite genus of the family Solenopleuridae, known from deposits in Europe and Asia and used as a bi...

Small Asian Cambrian Ptychopariida

5.0 Mediocre

20

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