swap_horiz Cryptolithus Alternatives

1

Isotelus

Isotelus is an extinct genus of large asaphid trilobite that lived during the Ordovician period. It possessed a smooth,...

Smooth North American Ordovician Asaphida

8.3 Great

2

Ceraurus

Ceraurus is an extinct genus of cheirurid trilobites that thrived in shallow marine environments during the Ordovician p...

North American Ordovician Phacopida Cheiruridae

8.0 Great

3

Trinucleus

Trinucleus is an extinct genus of trilobites that thrived during the Ordovician period, with fossils primarily located i...

Blind British Ordovician Trinucleida

7.8 Good

4

Flexicalymene

Flexicalymene is an extinct genus of trilobites that existed during the Ordovician period. These arthropods are commonly...

North American Ordovician Phacopida Enrolled

7.5 Good

5

Ampyx

Ampyx is an extinct genus of trilobite from the order Trinucleida that lived during the Ordovician period. These blind t...

European Blind Ordovician Trinucleida

7.5 Good

6

Raphiophorus

Raphiophorus is an extinct genus of trilobites that existed during the Ordovician and Silurian geological periods. As a...

Blind Rare Ordovician Asaphida

7.1 Good

7

Lonchodomas

Lonchodomas is an extinct Ordovician trilobite genus in the raphiophorid group of the order Asaphida. Its defining featu...

Blind Scandinavian Ordovician Trinucleida

6.8 Fair

8

Primaspis

Early Ordovician trilobite known from Baltic and Gondwanan deposits, representing an early post-Cambrian radiation withi...

Blind Rare Ordovician Asaphida

6.7 Fair

9

Onnia

Onnia is a genus of trinucleid trilobites from the Ordovician Period. It is known from parts of Europe and North Africa...

Blind Iberian Ordovician Trinucleida

6.5 Fair

10

Ampyx nasutus

Ordovician raphiophorid trilobite distinguished by a prominent forward-projecting rostral spine, found across European a...

European Blind Ordovician Trinucleida

6.5 Fair

11

Platycalymene

Platycalymene is a genus of calymenid trilobites known from Paleozoic marine rocks, including Silurian deposits in parts...

North American Ordovician Phacopida Enrolled

6.3 Fair

12

Reedocalymene

Reedocalymene is a genus of calymenid trilobites from the Paleozoic fossil record. The genus was named in honor of the p...

North American Ordovician Phacopida Enrolled

6.0 Fair

13

Trinodus

Trinodus is an extinct genus of small Ordovician trilobites assigned to the raphiophorid lineage. It is characterized by...

European Blind Ordovician Trinucleida

5.8 Mediocre

14

Tretaspis

Tretaspis is an extinct genus of trinucleid trilobites from the Ordovician Period. Its broad cephalon carries a distinct...

European Blind Ordovician Trinucleida

5.8 Mediocre

15

Marrolithus

Marrolithus is a genus of Ordovician trilobites in the family Trinucleidae. It has a broad cephalic fringe marked by pit...

European Blind Ordovician Trinucleida

5.8 Mediocre

16

Acadagnostus

Acadagnostus is a genus of Cambrian agnostid trilobites described by Teiichi Kobayashi in 1939. Agnostids were small mar...

Tiny Blind North American Cambrian

5.5 Mediocre

17

Hystricurus

Hystricurus is a Late Cambrian trilobite genus described by Raymond in 1924, known from North America and characterized...

North American Ordovician Phacopida Tuberculate

5.3 Mediocre

18

Panderia

Panderia is a genus of Ordovician trilobites assigned to the superfamily Trinucleoidea. It is known from fossil deposits...

Blind Scandinavian Ordovician Trinucleida

5.2 Mediocre

19

Crozonaspis

Crozonaspis is an extinct genus of dalmanitid trilobites in the order Phacopida, established by Henry in 1968. It lived...

Blind Iberian Ordovician Trinucleida

5.0 Mediocre

20

Robergia

Robergia is an extinct genus of Ordovician trilobites in the family Remopleurididae, within the order Asaphida. It is re...

Blind Scandinavian Ordovician Trinucleida

5.0 Mediocre