Proetidae is a

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

of proetid

trilobite Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the ...

s. The first species appeared in the

Upper Ordovician The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. Th ...

, and the last genera survived until the Middle

Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last ...

. However, if the closely related family Phillipsiidae is actually a subfamily of Proetidae, then the proetids of Proetidae survive until the end of the Permian, where the last perish during the

Permian–Triassic extinction event The Permian–Triassic (P–T, P–Tr) extinction event, also known as the Latest Permian extinction event, the End-Permian Extinction and colloquially as the Great Dying, formed the boundary between the Permian and Triassic geologic periods, as ...

Genera

Proetidae ostensibly contains these following genera, though many may be placed in Phillipsiidae if the latter is, indeed, a distinct family. *'' Aayemenaytcheia'' *'' Aceroproetus'' *'' Alaskalethe'' *'' Altajaspis'' *'' Anambon'' *'' Anglibole'' *'' Angustibole'' *'' Anujaspis'' *'' Appendicysta'' *'' Aprathia'' *'' Archaeocoryphe'' *'' Ascetopeltis'' *'' Astroproetus'' (syn=''Xiushuiproetus'', ''Zhejiangoproetus'') *'' Australokaskia'' *'' Bailielloides'' *'' Bapingaspis'' *'' Basidechenella'' *'' Beleckella'' *'' Belgibole'' *'' Benesovella'' *'' Bitumulina'' *'' Blodgettia'' *'' Bohemiproetus'' *'' Bolivicrania'' *'' Boliviproetus'' *'' Bollandia'' *'' Bonnaspidella'' *'' Borelia'' *'' Brevibole'' *'' Burgesina'' *'' Calybole'' *'' Camsellia'' *'' Carbonoproetus'' *'' Carlopsia'' *'' Carniphillipsia'' *'' Ceratoproetus'' *'' Chauffouraspis'' *'' Chaunoproetoides'' *'' Chaunoproetus'' *'' Chiides'' *'' Chiops'' *'' Chlupacula'' *'' Chuanqianoproetus'' *'' Clavibole'' *'' Comptonaspis'' *'' Coniproetus'' *'' Conophillipsia'' *''

Constantina Flavia Valeria Constantina (also sometimes called ''Constantia'' and ''Constantiana''; el, Κωνσταντίνα; b. after 307/before 317 – d. 354), later known as Saint Constance, was the eldest daughter of Roman emperor Constantine the Great ...

'' *'' Coombewoodia'' *'' Craspedops'' *'' Crassibole'' *'' Crassiproetus'' *'' Cyphinioides'' *'' Cyphoproetus'' *'' Cyrtodechenella'' *'' Cyrtoproetus'' *'' Cyrtosymbole'' *'' Cystispina'' *'' Daihuaia'' *'' Dayinaspis'' *'' Dechenella'' *'' Dechenelloides'' *'' Dechenellurus'' *'' Deinoproetus'' *'' Deltadechenella'' *'' Diabole'' *'' Diacoryphe'' *'' Drevermannia'' *'' Dudu'' *'' Dushania'' *'' Effops'' *'' Ejinoproetus'' *'' Elegenodechenella'' *'' Elimaproetus'' *'' Elliptophillipsia'' *''

Endops ''Endops yanagisawai'' is a proetid trilobite belonging to the family Proetidae, endemic to Middle Permian-aged marine strata in Fukushima Prefecture, Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country i ...

'' *'' Engelomorrisia'' (syn=''Capricornia'') *'' Ensecoryphe'' *'' Eocyphinium'' *'' Eocyrtosymbole'' *'' Eodrevermannia'' *'' Eomicrophillipsia'' *'' Eopalpebralia'' *'' Eosoproetus'' *'' Eowinterbergia'' *'' Erbenaspis'' *'' Erbenites'' *'' Evagena'' *'' Exochops'' *'' Flexidechenella'' *'' Formonia'' *'' Francenaspis'' *'' Franconicabole'' *'' Frithjofia'' *'' Fuscinipyge'' *'' Ganinella'' *'' Gapeevella'' *'' Geigibole'' *'' Georhithronella'' *'' Gerastos'' *'' Gitarra'' *'' Globusia'' *'' Globusiella'' *'' Globusoidea'' *'' Gomiites'' *'' Gracemerea'' *'' Hassiabole'' *''

Hedstroemia The extinct genus ''Hedstroemia'' was once thought to be a rivulariacean cyanobacterium. It forms oval blobs composed of sinuous tubes that have rounded outlines and occurs in conjunction with '' Solenopora''. ''Hedstroemia'' was formerly assi ...

'' *'' Helioproetus'' *'' Helmutia'' *'' Helokybe'' *'' Humeia'' *'' Humilogriffithides'' *'' Hunanoproetus'' *'' Hypaproetus'' *'' Jinia'' *'' Karginella'' *'' Kaskia'' *'' Kathwaia'' *'' Kerpenella'' *'' Khalfinella'' *'' Kolymoproetus'' *'' Kosovoproetus'' *'' Krambedrysia'' *'' Kulmiella'' *'' Kulmogriffithides'' *'' Lacunoporaspis'' *'' Laevibole'' *'' Langgonbole'' *'' Latibole'' *'' Latiglobusia'' *'' Latiproetus'' *'' Lauchellum'' *'' Lichanocoryphe'' *'' Linguaphillipsia'' *'' Liobole'' *'' Liobolina'' *'' Longilobus'' *'' Longiproetus'' *'' Lophiokephalion'' *'' Lugalella'' *'' Luojiashania'' *'' Macrobole'' *'' Mahaiella'' *'' Malayaproetus'' *'' Malchi'' *'' Mannopyge'' *'' Megaproetus'' *'' Menorcaspis'' *'' Merebolina'' *'' Metaphillipsia'' *''Mezzaluna'' *'' Microspatulina'' *'' Mirabole'' *'' Monodechenella'' *'' Moravocoryphe'' *'' Moschoglossis'' *'' Myoproetus'' *'' Namuraspis'' *'' Neogriffithides'' *'' Neokaskia'' *'' Nitidocare'' *'' Nodiphillipsia'' *'' Oehlertaspis'' *'' Oidalaproetus'' *'' Orbitoproetus'' *'' Ormistonaspis'' *'' Omlistonia'' *'' Ormistoniella'' *'' Osmolskia'' *'' Otodechenella'' *''

Paladin The Paladins, also called the Twelve Peers, are twelve legendary knights, the foremost members of Charlemagne's court in the 8th century. They first appear in the medieval (12th century) ''chanson de geste'' cycle of the Matter of France, where ...

'' *'' Palaeophillipsia'' *'' Paleodechenella'' *'' Palpebralia'' *'' Panibole'' *'' Parachaunoproetus'' *'' Paradechenella'' *'' Parafrithjofia'' *'' Paraglobusia'' *'' Paragriffithides'' *'' Paramirabole'' *'' Parangustibole'' *'' Parapalpebralia'' *'' Paraproetus'' *'' Parawarburgella'' *'' Particeps'' *'' Parvidumus'' *'' Paryfenus'' *'' Pedinocoryphe'' *'' Pedinodechenella'' *'' Perexigupyge'' *'' Perliproetus'' *'' Phillibolina'' *'' Philliboloides'' *'' Phyllaspis'' *'' Planilobus'' *'' Planokaskia'' *'' Plesiowensus'' *'' Podoliproetus'' *'' Pontipalpebralia'' *'' Praedechenella'' *'' Pragoproetus'' *'' Prantlia'' *'' Prodiacoryphe'' *'' Proetocephalus'' *''

Proetus In Greek mythology, Proetus (; Ancient Greek: Προῖτος ''Proitos'') may refer to the following personages: * Proetus, king of Argos and Tiryns, son of Abas and twin brother of Acrisius. *Proetus, a prince of Corinth as the son of Prince ...

'' *'' Pseudobollandia'' *'' Pseudocyrtosymbole'' *'' Pseudodechenella'' *'' Pseudodudu'' *'' Pseudogerastos'' *'' Pseudoproetus'' *'' Pseudosilesiops'' *'' Pseudospatulina'' *'' Pseudowaribole'' *'' Pudoproetus'' *'' Pulcherproetus'' *'' Pusillabole'' *'' Raerinproetus'' *'' Reediella'' *'' Rhenocynproetus'' *'' Rhenogriffides'' *'' Richterella'' *'' Rijckholtia'' *'' Rosehillia'' *'' Rugulites'' *'' Schaderthalaspis'' *'' Schizophillipsia'' *'' Schizoproetina'' *'' Schizoproetoides'' *'' Schizoproetus'' *'' Semiproetus'' *'' Sevillia'' *'' Silesiops'' *'' Simaproetus'' *'' Sinobole'' *'' Sinocyrtoproetus'' *'' Sinopaladin'' *'' Sinoproetus'' *'' Sinosymbole'' *'' Skemmatocare'' *'' Skemmatopyge'' *'' Spatulata'' (syn=''Spatulina'' ) *'' Spergenaspis'' *'' Spinibolops'' *'' Struveproetus'' *'' Sulcubole'' *'' Tawstockia'' *'' Taynaella'' *'' Tcherkesovia'' *'' Tetinia'' *'' Thaiaspella'' *'' Thalabaria'' *'' Thebanaspis'' *'' Tropidocare'' *'' Tschernyschewiella'' *'' Typhloproetus'' *'' Unguliproetus'' *'' Vandergrachtia'' *'' Vittaella'' *'' Wagnerispina'' *'' Waideggula'' *'' Waigatchella'' *'' Warburgella'' *'' Waribole'' *'' Weberiphillipsia'' *'' Westropia'' *'' Weyeraspis'' *'' Winiskia'' *'' Winterbergia'' *'' Witryides'' *'' Xenadoche'' *'' Xenoboloides'' *'' Xenocybe'' *'' Xenodechenella'' *'' Xiangzhongella'' *'' Xiushuiproetus'' *'' Yanshanaspis'' *'' Yichangaspis'' *'' Yishanaspis'' *'' Yuanjia'' (syn=''Haasia'') *'' Zhegangula'' *'' Zhejiangoproetus''

References

Proetida Trilobite families Ordovician trilobites Silurian trilobites Devonian trilobites Permian trilobites Carboniferous trilobites Late Ordovician first appearances Guadalupian extinctions Prehistoric arthropod families {{proetida-stub