trilobite01
Elrathia kingi (ptychopariids)
1 of 25
trilobite02
Xystridura templetonensis (paradoxid)
2 of 25
trilobite03
Cryptolithus tesselatus (trinucleid)
3 of 25
trilobite04
Breviphillipsia sampsoni (proetid)
4 of 25
trilobite05
Cromus optimus (cheirurid)
5 of 25
trilobite06
Redlichia takooensis (redlichiid)
6 of 25
trilobite07
Hoekaspis matacensis (asaphid)
7 of 25
trilobite08
Zacanthoides typicalis (corynexochid)
8 of 25
trilobite09
Bristolia bristolensis (ollenellid)
9 of 25
trilobite10
Tricrepicephalus texanus (ptychopariid)
10 of 25
trilobite11
Paradoxides gracilis (paradoxiid)
11 of 25
trilobite12
Lotagnostus asiaticus (agnostid)
12 of 25
trilobite13
Ductina vietnamica (phacopid)
13 of 25
trilobite14
Pterocephalia norfordi (dikelocepahalid)
14 of 25
trilobite15
Albertella helena (corynexochid)
15 of 25
trilobite16
Drotops megalomanicus (phacopid)
16 of 25
trilobite17
Pseudoyuepingia whitei (ceratopygid)
17 of 25
trilobite18
Proasaphiscus rigidus (ptychopariid)
18 of 25
trilobite19
Olenellus gilberti (ollenellid)
19 of 25
trilobite20
Sinespinaspis markhami (odontopleurid)
20 of 25
trilobite21
Lobopyge haasi (lichid)
21 of 25
trilobite22
Bathyurus extans (bathyurid)
22 of 25
trilobite23
Ceratarges armatus (lichid)
23 of 25
trilobite24
Scotoharpes bohemicus (harpid)
24 of 25
trilobite25
Selenopeltis buchi (odontopleurid)
25 of 25

View the entire gallery or click the above images to enlarge.

Few fossils are as fascinating as trilobites, an extinct order of arthropods common in marine rocks from the Cambrian to Permian geological periods, between about 542 and 251 million years old. Like other arthropods, trilobites had numerous segments which fell apart and scattered on death and decay. A completely articulated trilobite is a rare prize, and a thing of beauty. This is a selection of unusually complete specimens from the recently acquired Retallack collection. Photography by Win McLaughlin, text by Greg Retallack, and web development by Keith Hamm. Images © UO Museum of Natural and Cultural History. Production of this gallery was generously supported by The Ford Family Foundation.