swap_horiz Onnia Alternatives

1

Neoasaphus

Neoasaphus is a type of trilobite fossil belonging to the Asaphida order and Asaphidae family. Primarily found in Ordovi...

Russian Ordovician Asaphida Asaphidae

9.2 Excellent

2

Isotelus rex

Isotelus rex is a remarkably large species of trilobite belonging to the Asaphida order. Recovered from Ordovician-age r...

Canadian Ordovician Asaphida Asaphidae

9.1 Excellent

3

Neoasaphus kowalewskii

Neoasaphus kowalewskii is a fossil trilobite discovered in Russia’s Ordovician deposits. This species is notable for its...

Russian Iconic Ordovician Asaphida

9.0 Excellent

4

Asaphus

An Ordovician trilobite from the Baltic region, with species such as A. kowalewskii bearing stalked eyes up to 6 cm tall...

Russian Smooth Ordovician Asaphida

8.6 Great

5

Pricyclopyge

An Ordovician trilobite from Bohemia and Iberia notable for its exceptionally large, forward-facing eyes, interpreted as...

Pelagic Iberian Ordovician Cyclopygida

8.6 Great

6

Cryptolithus

Cryptolithus is an Ordovician trilobite genus famous for its broad perforated cephalic fringe nicknamed the lace collar,...

Blind North American Ordovician Trinucleida

8.3 Great

7

Selenopeltis

Ordovician odontopleurid trilobite widespread across Europe and North Africa, distinguished by exceptionally long, slend...

Iberian Spiny Ordovician Odontopleurida

8.0 Great

8

Trinucleus

An Ordovician trilobite from Britain and Europe distinguished by a broad cephalic fringe covered in a regular pattern of...

Blind British Ordovician Trinucleida

7.8 Good

9

Ampyx

Ampyx is an Ordovician trilobite genus notable for its long glabellar spine extending forward from the cephalon, found i...

European Blind Ordovician Trinucleida

7.5 Good

10

Lonchodomas

An Ordovician trilobite known for its elongated frontal or rostral spine, found in Baltic and North American Ordovician...

Blind Scandinavian Ordovician Trinucleida

6.8 Fair

11

Placoparia

Placoparia is an Ordovician trilobite genus from Europe, distinguished by its prominent eyes and relatively large, wide...

Iberian Ordovician Phacopida Enrolled

6.5 Fair

12

Neseuretus

An Ordovician trilobite common in Gondwanan shallow-water facies, with fossils found across Wales, Iberia, and North Afr...

Iberian Ordovician Phacopida Enrolled

6.5 Fair

13

Ampyx nasutus

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

European Blind Ordovician Trinucleida

6.5 Fair

14

Trinodus

Small Ordovician raphiophorid trilobite found in European strata, notable for its simplified exoskeleton and reduced pyg...

European Blind Ordovician Trinucleida

5.8 Mediocre

15

Tretaspis

Ordovician trinucleid trilobite with a broad cephalic fringe bearing concentric rows of pits, widely distributed across...

European Blind Ordovician Trinucleida

5.8 Mediocre

16

Marrolithus

Ordovician trinucleid trilobite from European strata, characterized by a wide pitted cephalic fringe and an eyeless ceph...

European Blind Ordovician Trinucleida

5.8 Mediocre

17

Panderia

Ordovician trilobite from Scandinavia and the Baltic region, belonging to superfamily Trinucleoidea and recognized by it...

Blind Scandinavian Ordovician Trinucleida

5.2 Mediocre

18

Opipeuter

Ordovician trilobite remarkable for its exceptionally large holochroal eyes, which are among the most prominent relative...

Pelagic Blind Ordovician Cyclopygida

5.0 Mediocre

19

Crozonaspis

A Devonian trilobite from the Crozon Peninsula of Brittany, France, Crozonaspis is an important zonal fossil for Early D...

Blind Iberian Ordovician Trinucleida

5.0 Mediocre

20

Robergia

Ordovician trilobite from Scandinavian and Baltic strata, a small-bodied raphiophorid genus recognized for its simply st...

Blind Scandinavian Ordovician Trinucleida

5.0 Mediocre