swap_horiz Hydrocephalus 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

Olenoides serratus

Olenoides serratus is an iconic trilobite species dating back to the Cambrian period. Found within the Burgess Shale of...

Iconic Cambrian Burgess Shale Corynexochida

9.0 Excellent

3

Naraoia

Naraoia is an extinct genus of soft-bodied arthropods that thrived during the Cambrian period, famously found in the Bur...

Cambrian Burgess Shale Soft Bodied Bivalved

8.5 Great

4

Paradoxides davidis

Paradoxides davidis is a species of large trilobite that lived during the Middle Cambrian period, with fossils primarily...

Large British Cambrian Redlichiida

8.5 Great

5

Paradoxides gracilis

Middle Cambrian trilobite widespread across Baltica and Avalonia, widely used as a biostratigraphic index fossil for the...

Bohemia Cambrian Redlichiida Species

8.4 Great

6

Nevadella

Nevadella is a genus of olenellid trilobites from the Early Cambrian of western North America. Fossils assigned to the g...

Rare Nevada Primitive Cambrian

8.3 Great

7

Paradoxides

Paradoxides is an extinct genus of large trilobites belonging to the order Redlichiida, existing during the Middle Cambr...

Iconic Large Bohemian Cambrian

8.2 Great

8

Schmidtiellus

Schmidtiellus is a genus of trilobites known from Lower Cambrian rocks in Estonia and Scandinavia. It belongs to an earl...

Rare Scandinavia Primitive Redlichiida

8.1 Great

9

Elrathia kingii

Elrathia kingii is an extinct ptychopariid trilobite from the Middle Cambrian Wheeler Shale of western Utah. Its fossils...

Utah Cambrian Abundant Ptychopariida

8.1 Great

10

Kootenia burgessensis

Kootenia burgessensis is an extinct species of trilobite that existed during the Middle Cambrian period. It is primarily...

Canadian Cambrian Burgess Shale Corynexochida

8.0 Great

11

Olenoides

Olenoides is an extinct genus of trilobites that lived during the Middle Cambrian period, widely known from fossil depos...

Canadian Cambrian Burgess Shale Corynexochida

7.8 Good

12

Acadoparadoxides

Acadoparadoxides is an extinct genus of large trilobites belonging to the family Paradoxididae, existing during the Midd...

Large Moroccan Cambrian Redlichiida

7.5 Good

13

Conocoryphe

Conocoryphe is an extinct genus of Middle Cambrian trilobites in the family Conocoryphidae. Fossils are known from regio...

Blind Bohemian Cambrian Ptychopariida

6.8 Fair

14

Protolenus

Protolenus is a genus of redlichiid trilobites from the early Cambrian Period. Fossils are known from Morocco and the Ib...

Moroccan Primitive Redlichiida Early Cambrian

6.5 Fair

15

Eccaparadoxides

Eccaparadoxides is a genus of paradoxidid trilobites from the Cambrian Period. Its fossils are associated with peri-Gond...

Iberian Cambrian Redlichiida Zone Fossil

6.5 Fair

16

Ellipsocephalus

Ellipsocephalus is a genus of ptychopariid trilobites from the Cambrian Period. It is especially associated with Cambria...

Smooth Bohemian Cambrian Ptychopariida

6.5 Fair

17

Ptychoparia

Ptychoparia is a genus of Middle Cambrian trilobites from Bohemia and other Cambrian fossil localities. It is the type g...

Bohemian Cambrian Ptychopariida Ptychopariidae

6.0 Fair

18

Sao

Sao is an extinct genus of small Cambrian trilobites associated with the fossil-bearing rocks of Bohemia. It was describ...

Small Bohemian Cambrian Ptychopariida

5.8 Mediocre

19

Agraulos

Agraulos is a genus of Cambrian trilobites in the family Ptychopariidae. The genus was described by Joachim Barrande in...

Small Bohemian Cambrian Ptychopariida

5.5 Mediocre

20

Yunnanocephalus

Yunnanocephalus is a genus of trilobites from the Cambrian Period. Fossils assigned to the genus are associated with Cam...

Chinese Primitive Cambrian Redlichiida

5.5 Mediocre