Cryptolithus

Not to be confused with Cryptolithodes.

Cryptolithus Temporal range: Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
Cryptolithus fossil, National Museum of Natural History
Reconstruction of the ventral side of Cryptolithus tessellatus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	† Trilobita
Order:	† Asaphida
Family:	† Trinucleidae
Genus:	† Cryptolithus Green, 1832 [1]

Cryptolithus is a genus of extinct epifaunal, suspension-feeding, trinucleid trilobites that lived during the Ordovician period. ^[2] They were mostly blind. ^[3] They are found in the United States, Canada, Venezuela, the United Kingdom, France, the Czech Republic, Morocco and Turkey. ^[4]

Species

Valid species of Cryptolithus include: ^[5]

• Cryptolithus bellulus (Ulrich, 1879)
• Cryptolithus carimatus
• Cryptolithus fittsi (Ulrich & Whittington)
• Cryptolithus goldfussi (Barrande)
• Cryptolithus inopinatus (Whittard)
• Cryptolithus intertetus (Whittard)
• Cryptolithus lorerainensis (Ruedemann)
• Cryptolithus lorettensis (Foerste, 1924)
• Cryptolithus ornatus (Sternberg)
• Cryptolithus portlockii
  • Cryptolithus portlockii girvanensis
• Cryptolithus quadrillatus
• Cryptolithus recurvus (Ulrich, 1919)
• Cryptolithus tessellatus (Green, 1832)
• Cryptolithus ultimus (Barrande)

References

1. Green, Jacob (1832). "A Monograph of the Trilobites of North America: With Coloured Models of the Species". 1. Joseph Brano: 72–78. doi: 10.5962/bhl.title.66801 .{{cite journal}}: Cite journal requires |journal= (help)
2. "Cryptolithus". Encyclopædia Britannica . 6 August 2019. Retrieved 7 December 2020.
3. Stigall, A.L. (12 November 2013). "Cryptolithus". Atlas of Ordovician Life.
4. "†Cryptolithus Green 1832 (trilobite)". fossilworks. Retrieved 17 December 2021.
5. Museum of Comparative Zoology