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Basseiarges mellishae  Trilobites Order Lichida, Family Lichidae, Subfamily Trochurinae  Geological Time: Middle Devonian

Basseiarges mellishae Trilobites Order Lichida, Family Lichidae, Subfamily Trochurinae Geological Time: Middle Devonian

Crotalocephalina (Crotalocephalus ) gibbus

Crotalocephalina (Crotalocephalus ) gibbus

Coltraenia oufatensis   Trilobites Order Phacopida, Superfamily Acastoidea - Formerly called Treveropyge  Geological Time: Middle Devonian  Size: 54 mm  Fossil Site: Oufaten, Alnif, Morocco

Coltraenia oufatensis Trilobites Order Phacopida, Superfamily Acastoidea - Formerly called Treveropyge Geological Time: Middle Devonian Size: 54 mm Fossil Site: Oufaten, Alnif, Morocco

Name: Albertella helena Walcott, 1908  Trilobite Order Corynexochida, Family Zacanthoididae  Locality: Gordon Shale, Fishtrap Creek area, Montana  Stratigraphy: Middle Cambrian  Remarks: 5 and 8 mm

Name: Albertella helena Walcott, 1908 Trilobite Order Corynexochida, Family Zacanthoididae Locality: Gordon Shale, Fishtrap Creek area, Montana Stratigraphy: Middle Cambrian Remarks: 5 and 8 mm

Arctinurus boltoni

Arctinurus boltoni LichidaTrilobite from New York US

Cyphaspis

Cyphaspis

Eccoptochile Trilobites

Eccoptochile mariana Moroccan Trilobite Tower of Death Assemblage

Lichas Trilobites Death AssemblageA rarely seen speciesName: Lichas marocanusTrilobites Order Lichida, Family LichidaeGeological Time : Upper Ordovician, Ashgillian Age (~440 million years ago)Size: Trilobite is 72 mm longFossil Site: Kataoua Formation, Jebel Bou-Degane, Tazarine, Morocco

Lichas Trilobites Death AssemblageA rarely seen species Name: Lichas marocanus Trilobites Order Lichida, Family Lichidae Geological Time : Upper Ordovician, Ashgillian Age million years.

http://www.fossilmall.com/Science/Trilobites/Russian/Plautini/Hoplolichasplauitini.htm

http://www.fossilmall.com/Science/Trilobites/Russian/Plautini/Hoplolichasplauitini.htm

http://www.fossilmall.com/Science/Trilobites/Moroccan/kettneraspis-prescheri/kettneraspis-prescheri.htm

http://www.fossilmall.com/Science/Trilobites/Moroccan/kettneraspis-prescheri/kettneraspis-prescheri.htm

How Cute! Trilobites Curled Up in Self-Defense - by Tia Ghose for LiveScience [September 24, 2013] Trilobites, such as this Mummaspis muralensis, emerged during the Cambrian Period and went extinct more than 250 million years ago.

How Cute! Trilobites Curled Up in Self-Defense

It took only years to kill more than 90 percent of all life on Earth, according to the most precise study yet of the Permian mass extinction, the greatest die-off in the past 540 million years. Trilobites disappeared during this time.

Diminutive Cornuproetid Moroccan Trilobite   Cornuproetinae indet  Trilobites Order Proetida, Family Proetidae, Subfamily Cornuproetinae  Geological Time: Lower Devonian  Size: (25.4 mm = 1 inch): Trilobite is 11 mm long (curve measure) by 8 mm wide (with spines) on a 50 by 80 mm matrix.  Fossil Site: Taouz, Morocco

Diminutive Cornuproetid Moroccan Trilobite Cornuproetinae indet Trilobites Order Proetida, Family Proetidae, Subfamily Cornuproetinae Geological Time: Lower Devonian Size: (25.4 mm = 1 inch): Trilobite is 11 mm long (curve measure) by 8 mm wide (with spines) on a 50 by 80 mm matrix. Fossil Site: Taouz, Morocco

http://www.fossilmall.com/Science/TrilobitesRussia/Pliomera_fisheri/Pliomera_fisheri.htm

Name: Pliomera fisheri Russian trilobites (Order Phacopida, Suborder Cheirurina) Age: Middle Ordovician, Asery Horizon Size: mm = 1 inch): 40 mm long by 20 mm wide on a 94 by 63 mm matrix Location: Wolchow River Region, St Petersburg, Russia

Dicranurus monstrosus  Devonian  Family Odontopleuridae  Aatchana, Morocco

Spiny Dicranurus monstrosus Odontopleurid Trilobite from Morocco

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