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Extinct order of trilobites
Phacopida ("lens-face") is an order of trilobites that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse assemblage
Phacopida
Class of extinct, Paleozoic arthropods
Cambrian one. Phacopida and Trinucleioidea are characteristic forms, highly differentiated and diverse, most with uncertain ancestors. The Phacopida and other
Trilobite
Extinct species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Calymenidae Genus: †Calymene Species: †C. blumenbachii Binomial
Calymene_blumenbachii
Extinct genus
trilobite in the order Phacopida, from the upper Pragian (A. atavus) to Emsian period (both other species listed) of the Devonian. "Phacopida Fact Sheet". www
Acastava
Genus of trilobites
Phacops is a genus of trilobites in the order Phacopida, family Phacopidae, that lived in Europe, northwestern Africa, North and South America and China
Phacops
Genus of trilobites (fossil)
Flexicalymene is a genus of trilobites belonging to the order Phacopida, suborder Calymenina and family Calymenidae. Flexicalymene specimens can be mistaken
Flexicalymene
Genus of trilobites
Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Crotalocephalus Salter, 1853
Crotalocephalus
Extinct order of trilobites
including Ptychopariida, Asaphida, Proetida, Harpetida, and possibly Phacopida. These are now known as the "Librostome Orders". Trilobites of the orders
Ptychopariida
Geological formation in Western Australia
The Virgin Hills Formation is a geologic formation dating to the Late Devonian epoch, specifically the Frasnian and Famennian stages. It is located in
Virgin_Hills_Formation
Extinct species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Encrinuridae Genus: †Struszia Species: †S. mccartneyi Binomial
Struszia_mccartneyi
Genus of trilobites
media related to Gabriceraurus. Gabriceraurus is a trilobite in the order Phacopida (family Cheiruridae), that existed during the upper Ordovician in what
Gabriceraurus
Extinct genus of trilobites
Drotops is a genus of trilobites from the order Phacopida, family Phacopidae that lived during the Eifelian of the Middle Devonian. It was described by
Drotops
Extinct family of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Suborder: †Cheirurina Family: †Cheiruridae Hawle & Corda, 1847 Subfamilies
Cheiruridae
Extinct genus of trilobites
Calymene is a genus of trilobites in the order Phacopida, suborder Calymenina, that are found throughout North America, North Africa, and Europe in primarily
Calymene
Genus of trilobites
related to Eldredgeops. Eldredgeops is a genus of trilobites in the order Phacopida, family Phacopidae, known from the late Middle and earliest Upper Devonian
Eldredgeops
Extinct order of trilobites
order Proetida was separated in 1975 by Fortey and Owens. Like the order Phacopida, the proetids have exoskeletons that sometime have pits or small tubercles
Proetida
Second period of the Paleozoic Era
All Late Cambrian trilobite orders persisted, joined by the new order Phacopida. In the Early Ordovician, trilobites were joined by tabulate corals, strophomenid
Ordovician
Extinct genus of trilobites
Hollardops is a genus of trilobite in the order Phacopida that lived during the Devonian. Their fossils are found in the upper Emsian of western Europe
Hollardops
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Acastidae Genus: †Morocconites Boucot, McClure, Alvarez, Ross
Morocconites
Extinct family of trilobites
doi:10.1016/j.palaeo.2014.03.037. Retrieved 16 October 2026 – via Elsevier Science Direct. S.M. Gon III. "Order Phacopida". Retrieved January 15, 2011.
Phacopidae
Genus of trilobites
Distyrax is a genus of trilobites in the order Phacopida, that existed during the lower Silurian in what is now Greenland. It was described by Philip
Distyrax
Paleontologist
received a PhD in 1991 for systematic studies on the trilobite order Phacopida supervised by Niles Eldredge at the American Museum of Natural History
Gregory_Edgecombe
Genus of Devonian trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Acastidae Genus: †Walliserops Type species Walliserops trifurcatus
Walliserops
Genus of trilobites
Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Calmoniidae Genus: †Andinacaste Eldredge & Ormiston 1979
Andinacaste
Silurian species of trilobites
Calymene celebra is a Silurian species of trilobites of the order Phacopida and also the state fossil of Wisconsin. It is found in Illinois, Indiana,
Calymene_celebra
Species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Calymenidae Genus: †Calymene Species: †C. niagarensis Binomial
Calymene_niagarensis
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Calmoniidae Genus: †Bainella Rennie, 1930 Species Bainella africana
Bainella
Genus of trilobite
systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida)". Journal of Systematic Palaeontology. 12 (6): 1–32. doi:10.1080/14772019
Coltraneia
†Corynexochida Order †Harpetida Order †Redlichiida Order †Lichida Order †Phacopida Order †Proetida Order †Ptychopariida Order †Isoxyida Order †Hymenocarina
List_of_arthropod_orders
Species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Paraceraurus Species: †P. exsul Binomial
Paraceraurus_exsul
Hadrohybus is an extinct genus of trilobites in the order Phacopida. It lived in Newfoundland during the Ordovician. Hadrohybus at the Paleobiology Database
Hadrohybus
Genus of trilobites
Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Actinopeltis Hawle & Corda, 1847
Actinopeltis_(trilobite)
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Afrops Alberti, 1983 Species: †A. larvifer
Afrops
Extinct genus of Trilobite
systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida)". Journal of Systematic Palaeontology. 12 (6): 637–668. doi:10.1080/14772019
Tolkienia
Geologic formation in Australia
Ananaspis "A." woiwurrungi Phacopida, Phacopidae Arcticalymene A. australis Phacopida, Calymenidae Cromus C. melbournensis Phacopida, Encrinuridae C. simpliciculus
Melbourne_Formation
Extinct genus of trilobites
Bornholmaspis is a genus of trilobites in the order Phacopida, which existed in what is now Bornholm, Denmark. It was described by Přibyl and Vaněk in
Bornholmaspis
Extinct family of trilobites
Journal. 1 (1): 24–32. Bibcode:2008OPalJ...1...24C. doi:10.2174/1874425700801010024. S. M. Gon III. "Order Phacopida". Retrieved November 14, 2010. v t e
Homalonotidae
American paleontologist (born 1943)
University of New York. His specialty was the evolution of mid-Paleozoic Phacopida trilobites, a group of extinct arthropods that lived between 543 and 245
Niles_Eldredge
Extinct suborder of trilobites
The Phacopina comprise a suborder of the trilobite order Phacopida. Species belonging to the Phacopina lived from the Lower Ordovician (Tremadocian) through
Phacopina
Extinct genus of trilobites
Dalmanites is a genus of trilobite in the order Phacopida. They lived from the Late Ordovician to Middle Devonian. It was named for the Swedish naturalist
Dalmanites
Genus of trilobites
Chotecops is a genus of trilobites from the order Phacopida, suborder Phacopina, family Phacopidae. It was initially erected as a subgenus of Phacops
Chotecops
Extinct genus of trilobites
systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida)". Journal of Systematic Palaeontology. 12 (6): 1–32. doi:10.1080/14772019
Minicryphaeus
Genus of trilobites
Trimerocephalus is a genus of eyeless trilobites from the order Phacopida, family Phacopidae. It lived during the final stage of the Devonian, the Famennian
Trimerocephalus
Extinct family of trilobites
Sarrabesia Spathacalymene Sthenarocalymene Tapinocalymene Thelecalymene Vietnamia Sam Gon III. "Order Phacopida". Retrieved November 13, 2010. v t e
Calymenidae
Extinct suborder of trilobites
Cheirurina is a suborder of the trilobite order Phacopida. Known representatives range from the uppermost Cambrian (upper Furongian) to the end of the
Cheirurina
Extinct family of trilobites
Dalmanitidae is a family of trilobites in the order Phacopida that lived from the Floian (Ordovician) to the Devonian and includes 33 genera. "†family
Dalmanitidae
Genus of trilobites
Crotalocephalina is an extinct genus of trilobite in the order Phacopida found in Morocco. Photo of a Crotocephalina Crotalocephalina at the Paleobiology
Crotalocephalina
Suborder of Trilobites
Calymenina is a suborder of the trilobite order Phacopida. Sam Gon III. "Order Phacopida". Retrieved November 13, 2010. v t e
Calymenina
Extinct species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Eldredgeops Species: †E. rana Binomial name
Eldredgeops_rana
Extinct genus of trilobites
Agnostida Asaphida Corynexochida Harpetida Lichida Nektaspida Odontopleurida Phacopida Proetida Ptychopariida Redlichiida Genera List of trilobites Geochronology
Bumastus
Extinct genus of trilobites
systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida)". Journal of Systematic Palaeontology. 12 (6): 1–32. doi:10.1080/14772019
Psychopyge
Geological formation in Brazil
Leme, Juliana de Moraes; et al. (September 2013). "The occurrence of Phacopida trilobites from Pimenteira Formation at João Costa, Piauí, Brazil". Revista
Pimenteira_Formation
Extinct family of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Suborder: †Phacopina Superfamily: †Dalmanitoidea Family: †Diaphanometopidae
Diaphanometopidae
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Diaphanometopidae Genus: †Gyrometopus Jaanusson 1975 Species
Gyrometopus
Extinct genus of trilobites
Viaphacops is a genus of trilobites in the order Phacopida, family Phacopidae, that lived during the Middle Devonian, and is known from North and South
Viaphacops
Genus of trilobites
classification Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Borealaspis Ludvigsen, 1976
Borealaspis
Subgroup of Ordovician geologic formations in Tasmania, Australia
Gregory D.; Banks, Maxwell R.; Banks, Doris M. (1999). "Upper Ordovician Phacopida (Trilobita) from Tasmania". Alcheringa: An Australasian Journal of Palaeontology
Chudleigh_Subgroup
Genus of trilobites
Anchiopella is a genus of trilobites in the order Phacopida, which existed in Early Devonian times in what is now South Africa. It was described by Reed
Anchiopella
Extinct superfamily of trilobite
Agnostida Asaphida Corynexochida Harpetida Lichida Nektaspida Odontopleurida Phacopida Proetida Ptychopariida Redlichiida Genera List of trilobites Geochronology
Proetoidea
Species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Phacops Species: †P. fecundus Binomial name
Phacops_fecundus
Extinct genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Pliomeridae Genus: †Protoencrinurella Legg, 1976 Species: †P
Protoencrinurella
Extinct genus of trilobites
Cybellela is an extinct genus of trilobites in the order Phacopida. It lived during the middle-Ordovician period in Russia. Cybellela at the Paleobiology
Cybellela
Genus of trilobites
Aegrotocatellus is a genus of trilobites in the order Phacopida, which existed in what is now Nunavut, Canada. It was named by Adrain and Edgecombe in
Aegrotocatellus
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Dalmanitidae Genus: †Huntoniatonia Campbell, 2003 Species H.
Huntoniatonia
Extinct genus of trilobites
classification Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Eocryphops Richter, 1931
Eocryphops
Extinct genus of trilobites
systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida)". Journal of Systematic Palaeontology. 12 (6): 1–32. doi:10.1080/14772019
Erbenochile
Extinct genus of trilobites
Josephulus is a genus of trilobites in the order Phacopida (family Pliomeridae) that existed during the upper Ordovician in what is now Sweden. It was
Josephulus
Extinct genus of trilobites
classification Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Pilekiidae Genus: †Anacheirurus Reed, 1896
Anacheirurus
Second of the big five mass extinctions
order Lichida. This left only two trilobites orders in the Famennian: Phacopida and Proetida. Trilobites which survived the Kellwasser event tended to
Late_Devonian_mass_extinction
Genus of trilobites
Erratencrinurus is a genus of trilobites in the order Phacopida, that existed during the upper Ordovician in what is now northern Germany. It was described
Erratencrinurus
Species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Areia Barrande, 1872 Species: †A. bohemica
Areia_bohemica
Extinct genus of trilobites
Eodindymene is a genus of trilobites in the order Phacopida, that existed during the upper Ordovician in what is now Sweden. It was described by Kielan
Eodindymene
Extinct genus of trilobite
this genus is placed within the family Dalmanitidae, within the larger Phacopida, which lasted from the Lower Ordovician to the Upper Devonian. This genus
Waukeshaaspis
Genus of trilobites
Corycephalus is a genus of trilobites in the order Phacopida, that existed during the lower Devonian in what is now New York, U.S. It was described by
Corycephalus
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Acernaspis Campbell, 1967 Species Acernaspis
Acernaspis
Fossil genus of trilobites
classification Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Calymenidae Genus: †Vietnamia Kobayashi, 1960
Vietnamia
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Cheirurus Beyrich, 1845 Species Cheirurus
Cheirurus
Genus of trilobites
Agnostida Asaphida Corynexochida Harpetida Lichida Nektaspida Odontopleurida Phacopida Proetida Ptychopariida Redlichiida Genera List of trilobites Geochronology
Dinea
Extinct genus of trilobites
Foulonia is a genus of trilobites in the order Phacopida, that existed during the lower Ordovician in what is now France. It was described by Pribyl and
Foulonia
Genus of trilobites
Krattaspis is a genus of trilobites in the order Phacopida (family Cheiruridae), that existed during the lower Ordovician in what is now Estonia. It was
Krattaspis
Extinct genus of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Phacopidae Genus: †Nephranops Richter, 1926 Type species †Phacops
Nephranops
Extinct genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Acastidae Genus: †Acastocephala Shergold, 1966 Species A. macrops
Acastocephala
Extinct genus of trilobites
Emsurina is a genus of trilobites in the order Phacopida, that existed during the upper Cambrian in what is now Russia. It was described by Sivov in 1955
Emsurina
Extinct species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Encrinuridae Genus: †Cybele Species: †C. bellatula Binomial name
Cybele_bellatula
Genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Sphaerocoryphe Angelin, 1854 Species Sphaerocoryphe
Sphaerocoryphe
Genus of trilobites
Odontochile is a genus of trilobites in the order Phacopida, family Dalmanitidae. These trilobites were fast-moving low-level epifauna and detritivore
Odontochile
Arduennella is a Devonian homalonotid genus of trilobite in the order Phacopida, which existed in what is now Belgium, Germany, Morocco and Romania. It
Arduennella
Genus of trilobites
Commons has media related to Comura. Comura is a trilobite in the order Phacopida that existed during the lower Devonian in what is now Eifel, Germany.
Comura
Genus of trilobites
classification Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Cheiruridae Genus: †Chiozoon Lane, 1972
Chiozoon
Extinct order of trilobites
Agnostida Asaphida Corynexochida Harpetida Lichida Nektaspida Odontopleurida Phacopida Proetida Ptychopariida Redlichiida Genera List of trilobites Geochronology
Harpetida
Extinct genus of trilobites
Acastellina is a genus of minute trilobites in the order Phacopida, which existed in what is now Germany. It was described by Richter and Richter in 1954
Acastellina
Time interval during the Ordovician period
of the Floian Phthanoncoceras Ceratocephala Diacanthaspis Selenopeltis Phacopida of the Floian Bathycheilus Calymenella Ceraurinella Colobinion Colpocoryphe
Arenig
Extinct genus of trilobites
Apocalymene is a genus of trilobite in the order Phacopida, which existed in what is now Australia. It was described by Chatterton & Campbell in 1980
Apocalymene
Genus of trilobites
Dienstina is a trilobite in the order Phacopida, that existed during the lower Devonian in what is now Germany. It was described by Richter and Richter
Dienstina
Genus of trilobites
Fragiscutum is a genus of trilobites in the order Phacopida, that existed during the Silurian in what is now the United States. It was described by Whittington
Fragiscutum
Genus of trilobites
Toxophacops is a genus of trilobites from the order Phacopida, family Phacopidae. It is from the Devonian period and is very small compared to other genera
Toxophacops
Extinct genus of trilobites
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Pliomeridae Genus: †Pliomera Angelin, 1852 Species P. fischeri
Pliomera
Genus of trilobites
Cyrtometopus is an extinct genus of trilobite in the order Phacopida. Cyrtometopus affinis Cyrtometopus clavifrons Cyrtometopus meridianus Cyrtometopus
Cyrtometopus
Mass extinction at the end of the Devonian
The two remaining orders of trilobites, Phacopida and Proetida, were strongly affected. The order Phacopida completely died out during the event. Deep-water
Hangenberg_event
Extinct species of trilobite
Animalia Phylum: Arthropoda Clade: †Artiopoda Class: †Trilobita Order: †Phacopida Family: †Calmoniidae Genus: †Malvinella Species: †M. buddeae Binomial
Malvinella_buddeae
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