Phacops

Phacops is a genus of trilobites in the order Phacopida, family Phacopidae, that lived in Europe, northwestern Africa, North and South America and China from the Late Ordovician until the very end of the Devonian, with a broader time range described from the Late Ordovician. It was a rounded animal, with a globose head and large eyes, and probably fed on detritus. Phacops is often found rolled up ("volvation"), a biological defense mechanism that is widespread among smaller trilobites but further perfected in this genus.

Phacops is a genus of trilobites in the order Phacopida, family Phacopidae, that lived in Europe, northwestern Africa, North and South America and China from the Late Ordovician until the very end of the Devonian, with a broader time range described from the Late Ordovician. It was a rounded animal, with a globose head and large eyes, and probably fed on detritus. Phacops is often found rolled up ("volvation"), a biological defense mechanism that is widespread among smaller trilobites but further perfected in this genus. P. acuticeps = Acuticryphops acuticeps P. arcticus = Acernaspis arctica P. asper = Ananaspis aspera P. birdsongensis = Paciphacops birdsongensis P. boecki = Boeckops boecki P. braziliensis = Phacopidina braziliensis P. bronni = Reedops bronni P. bulliceps = Eophacops bulliceps P. caecus = Trimerocephalus caecus P. caffer = Metacryphaeus caffer P. cambelli = Paciphacops cambelli P. claviger = Paciphacops claviger P. caudatus = Dalmanites caudatus P. constrictus = Acastoides constrictus P. coronatus = Heliocephalus coronatus P. cristatus bombifrons = Viaphacops bombifrons P. cristatus cristatus = Viaphacops cristatus P. crossleii = Paciphacops crossleii P. cryptophthalmoides = Trimerocephalus cryptophthalmoides P. cryptophthalmus = Cryphops cryptophthalmus P. cultifrons = Eophacops trapeziceps P. dagincourti = Bouleia dagincourti P. deshayesi = Zeliszkella deshayesi P. downingiae var. α. vulgaris = Acaste downingiae P. downingiae var. β. macrops = Acastocephala macrops P. downingiae var. γ. inflatus = Acaste inflata P. ensae = Weyerites ensae P. fecundus = Ananaspis fecunda P. fecundus minor = Lochkovella minor P. ferdinandi = Chotecops ferdinandi P. glaber = Eophacops glaber P. glockeri = Phacopidella glockeri P. grimbergi = Lochkovella grimbergi P. handwerki = Eophacops handwerki P. hanusi = Lochkovella hanusi P. hoeninghausi = Prokops hoeninghausi P. hudsonicus = Paciphacops hudsonicus P. incisus = Nephranops incisus P. khatangensis = Acernaspis khatangensis P. kayseri = Eocryphops kayseri P. lacunosus = Trimerocephalus lacunosus P. latigenalis = Paciphacops latigenalis P. latilimbatus = Cryphops latilimbatus P. lentiginosus = Trimerocephalus lentiginosus P. limbatus = Dianops limbatus P. logani = Paciphacops logani P. lopatini = Monorakos lopatini P. mancus = Eophacops mancus P. marklandensis = Acernaspis marklandensis P. mastophthalmus = Trimerocephalus mastophthalmus P. metacernaspis = generic assignment uncertain P. michelini = Pseudocryphaeus michelini P. microps = Kainops microps P. milleri = Eldredgeops milleri P. miser = Lochkovella miser P. musheni = Eophacops musheni P. nudus = generic assignment uncertain P. ocellus = Hadrorachus ocellus P. opitzi = Chotecops opitzi P. orestes = Acernaspis orestes P. orientalis = Ananaspis orientalis P. parabolus = Phillipsinella parabola P. phillipsi = Kloucekia phillipsi P. primaevus = Acernaspis primaeva P. prokopi = Prokops prokopi P. pulcellus = Acernaspis pulcella P. quadrilineatus = Acernaspis quadrilineata P. rana = Eldredgeops rana P. raymondi = Kainops raymondi P. schlosseri = Struveops schlosseri P. serratus = Paciphacops serratus P. schlotheimi = Geesops schlotheimi P. socialis = Dalmanitina socialis P. speculator = Austerops speculator P. sphaericeps = Dereimsia sphaericeps P. steinachensis = Trimerocephalus steinachensis P. stellifer = Greenops (Neometacanthus) stellifer P. stokesii = generic assignment uncertain P. straitonensis = Podowrinella straitonensis P. trapeziceps = Eophacops trapeziceps P. veles = Kainops veles P. vodorezovi = Trimerocephalus vodorezovi P. volborthi = Denckmannites volborthi P. wocklumeriae = Weyerites wocklumeriae

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