Trilobites

Trilobites are extinct arthropods (joint legged animals). Many people assume that the name comes from the three section of the trilobite (head (cephalon), body (thorax), and tail (pygidium) but in fact, the name is derived from the three longitudinally lobes (left, right and center). Most trilobites had a compound eye (similar to a fly) but some were blind. As trilobites grew, they shed their exoskeletons, just like the modern shrimp or lobster. Because of shedding, most trilobite fossils are found as sections of the head, body or tail. Complete intact trilobites are very rare and prized by collectors. Many of the trilobites pictured here are rare and difficult to find intact. The picture below is schematic of a trilobite.


All photographs on these web pages are not to be copied or used for any purpose without my written permission.

Click on image to enlarge and see more details. On that page you can click on the image again for a full page view of the specimen.


    Devonian Trilobites from Ontario, Canada
    Pseudodechenella
    Crassiproetus
    Phacops
    Phacops
    Greenops
    Anikinops
    Pseudodechenella
    Crassiproetus
    Phacops
    Phacops
    Greenops
    Anikinops
    Phacops
    Phacops
    Greenops
    Pseudodechenella
    Phacops
    Indy
    Phacops
    Phacops
    Greenops
    Pseudodechenella
    Phacops
    Indyella



    Ordovician Trilobites from Ontario, Canada
    Isotelus
    Raymondites
    Ceraurinella
    Gabriceraurus
    Gabriceraurus
    Gabriceraurus
    Isotelus
    Raymondites
    Ceraurinella
    Gabriceraurus
    Gabriceraurus
    Gabriceraurus
    Isotelus
    Ectenaspis
    Ceraurinus
    Isotelus
    Calyptaulax
    Hemiarges
    Isotelus
    Ectenaspis
    Ceraurinus
    Isotelus
    Calyptaulax
    Hemiarges
    Meadowtownella
    Bumastoides
    Thaleops
    Flexicalymene
    Tracks with trilo
    Flexicalymene
    Meadowtownella
    Bumastoides
    Thaleops
    Flexicalymene
    Tracks with trilo
    Flexicalymene
    Isotelus
    Isotelus
    Ceraurus
    Raymondites
    Isotelus
    Ceraurus
    Isotelus
    Isotelus
    Gabriceraurus
    Raymondites
    Isotelus
    Gabriceraurus
    Ceraurus
    Gabriceraurus
    Ceraurus
    Calyptaulax
    Triarthrus
    Ceraurinella
    Ceraurus
    Gabriceraurus
    Ceraurus
    Calyptaulax
    Triarthrus
    Ceraurinella
    Pseudogygites
    Isotelus
    Hypodicranotus
    Thaleops
    Cybeloides
    Pseudogygites
    Pseudogygites
    Isotelus
    Hypodicranotus
    Thaleops
    Cybeloides
    Pseudogygites
    Flexicalymene
    Cyphoproetus
    Bufoceraurus
    Gabriceraurus
    Cybeloides
    Ceraurinus
    Flexicalymene
    Cyphoproetus
    Bufoceraurus
    Gabriceraurus
    Meadowtownella
    Ceraurinus
    Leviceraurus
    Isotelus
    Bufoceraurus
    Bumastoides
    Pseudogygites
    Failleana
    Leviceraurus
    Isotelus
    Bufoceraurus
    Bumastoides
    Pseudogygites
    Failleana
    Failleana
    Ceraurus
    Calyptaulax
    Flexicalymene
    Raymondites
    Flexicalymene
    Failleana
    Ceraurus
    Calyptaulax
    Flexicalymene
    Raymondites




    Trilobites from Michigan
    Dipleura
    Phacops
    Bellacartwrightia
    Stummiana
    Phacops
    Crassiproetus
    Dipleura
    Phacops
    Bellacartwrightia
    Stummiana
    Phacops
    Crassiproetus
    Pseudodechenella
    Crassiproetus
    Pseudodechenella
    Crassiproetus
    Calymene
    Phacops
    Pseudodechenella
    Crassiproetus
    Pseudodechenella
    Crassiproetus
    Calymene
    Phacops
    Phacops
    Ceraurinus
    Dechenella
    more to come
    more to come
    more to come
    Phacops
    Ceraurinus
    Dechenella
    more to come
    more to come
    more to come




    Other Trilobites
    Paraceraurus
    Hemerihodon
    Dicranurus
    Asaphicus
    Arctinurus
    Darwinus
    Paraceraurus
    Hemerihodon
    Dicranurus
    Asaphicus
    Arctinurus
    Darwinus
    Calymene
    Psychopyge
    Homotelus
    Ampyxina
    Asaphus
    Asaphus
    Calymene
    Psychopyge
    Homotelus
    Ampyxina
    Asaphus
    Asaphus
    Phacops
    Phacops
    Phacops
    Kettneraspis
    Huntonia
    Ellipsocephalus
    Phacops
    Phacops
    Phacops
    Kettneraspis
    Huntonia
    Ellipsocephalus
    Pseudogygites
    Orygmaspis
    Conocoryphe
    Lannacus
    Isotelus
    Ceraurus
    more to come
    Orygmaspis
    Conocoryphe
    Lannacus
    Isotelus
    Ceraurus
    Subasaphus
    Pseudasaphus
    Illaenus
    Asaphus
    Phacops
    Asaphus
    Subasaphus
    Pseudasaphus
    Illaenus
    Asaphus
    Phacops
    Asaphus
    Paladin
    Olenellus
    Bolaspidella
    Kootenia
    Foulonia
    Asaphellus
    Paladin
    Olenellus
    Bolaspidella
    Kootenia
    Foulonia
    Asaphellus
    Hamatolenus
    Protolenus
    Colpocoryphe
    Foulonia
    Bathycheilus
    Euloma
    Hamatolenus
    Protolenus
    Colpocoryphe
    Foulonia
    Bathycheilus
    Euloma
    Ampyx
    Nankinolithus
    Piltonia
    Bellacartwrightia
    Odontocephalus
    more to come
    Ampyx
    Nankinolithus
    Piltonia
    Bellacartwrightia
    Odontocephalus
    more to come





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