G. lecontei
Gabata
Gabriopalpus
Gabrius
Gabronthus
Gadgarra
Gadiformes(cods, hakes, and grenadiers)
Gaenima
Galacticidae0(incertae sedis)
Galafria
Galagidae(galagos, bush babies)
Galago alleni
Galago demidoff
Galago moholi
Galago senegalensis
Galago zanzibaricus
Galapagia
G-amazonica
G-peruana
G-solitaria
Galapagodacnum
Galatheidae
Galatheoidea
Galaxeinae
Galaxiidae
Galaxioidea
Galbulidae(jacamars)
Galeaspida(EXTINCT)
Galega
Galegeae sensu lato
Galenomys
GaleoctopusNorman, Boucher and Hochberg, 2004
Galeodidae
Galeopithecidae
Galepsus
G-(Galepsus)
GG-affinis
GG-binotatus
GG-buettneri
GG-coronatus
GG-feae
GG-globiceps
GG-konakrynus
GG-laticeps
GG-montanus
GG-nyassensis
GG-tenuis
G-(Lygdamia)
GL-brincki
GL-cacuminatus
GL-culminans
GL-lenticularis
GL-nimulensis
GL-oxycephalus
GL-scorteccii
GL-signatus
GL-trilobus
G-(Onychogalepsus)
GO-aberrans
GO-angolensis
GO-bioculatus
GO-bispinosus
GO-capensis
GO-capitatus
GO-centralis
GO-damaranus
GO-decipiens
GO-diversus
GO-erythraeus
GO-fallaciosus
GO-fallax
GO-femoratus
GO-focki
GO-fumipennis
GO-gracilis
GO-intermedius
GO-letabaensis
GO-machadoi
GO-malawiensis
GO-meridionalis
GO-minimus
GO-minutus
GO-pentheri
GO-rhodesicus
GO-rouxi
GO-schwetzi
GO-sudanensis
GO-supervacaneus
GO-transvaalensis
GO-ulricae
GO-wittei
GO-zambesicus
G-(Syngalepsus)
GS-beieri
GS-bikenmeierae
GS-bipunctatus
GS-denigratus
Galerga
G-ellipsis
G-fito
G-hyposticta
Galerita
G-(Galerita)
G-(Progaleritina)
G-atripes
G-bicolor
G-forreri
G-janus
Galerita lecontei bicoloripes
Galerita lecontei lecontei
Galerita lecontei tenebricosa
Galerita lecontei veracrucis
G-mexicana
G-reichardti
Galeritina
Galeritini
Galesauridae(EXTINCT)
Galesphyrus(EXTINCT) (incertae sedis)
Galiblatta
Galinthias
G-amoena
G-meruensis
G-occidentalis
GaliteuthisJoubin, 1898
G-armata
G-glacialis(Chun, 1906)
G-pacifica
G-phyllura
G-suhmi
Gallardoia
Gallaster
Galleriinae
Gallicola
Gallicrex cinerea(Watercock)
Gallieniellidae
Galliformes(Fowl, Quail, Guans, Currasows, Megapodes)
Gallinula(Makira Woodhen and relatives)
G-angulata(Lesser Moorhen)
G-chloropus(Common Moorhen)
G-melanops(Spot-flanked Gallinule)
G-mortierii(Tasmanian Nativehen)
G-nesiotis(Tristan Gallinule)
G-silvestris(Makira Woodhen)
G-tenebrosa(Dusky Moorhen)
G-ventralis(Black-tailed Nativehen)
Gallio
Galliobatidae
Gallirallus(Weka and relatives)
G-australis(Weka)
G-calayanensis(Calayan Rail)
G-insignis(Pink-legged Rail)
G-lafresnayanus(New Caledonian Rail)
G-okinawae(Okinawa Rail)
G-owstoni(Guam Rail)
G-philippensis(Buff-banded Rail)
G-rovianae(Roviana Rail)
G-striatus(Slaty-breasted Rail)
G-sylvestris(Lord Howe Woodhen)
G-torquatus(Barred Rail)
Galloanserae(fowl, ducks, and relatives)
Gallogoral(EXTINCT)
Galloperdix(Red Spurfowl and relatives)
G-bicalcarata(Sri Lanka Spurfowl)
G-lunulata(Painted Spurfowl)
G-spadicea(Red Spurfowl)
Gallus(Junglefowl, Chickens)
G-gallus(Red Junglefowl)
G-lafayetii(Sri Lanka Junglefowl)
G-sonneratii(Grey Junglefowl)
G-varius(Green Junglefowl)
Galopinus
Gamia
G-buchholtzi
G-shelleyi
Gammaentomopoxvirus
Gammaherpesvirinae
Gammalipothrixvirus
Gammapapillomavirus
Gammaretrovirus
Gampsonyx(incertae sedis)
Ganarus
Gandaca
G-butyrosa
G-harina
Gangara
G-lebadea
G-sanguinocculus
G-thyrsis
G-tumpa
Gangicobus(EXTINCT)
Gansia
Gansucupes attenuatus(EXTINCT) (incertae sedis)
Ganyra
G-howarthi
G-josephina
G-phaloe
Gapia
Gardnerella
Gargoyleosaurus(EXTINCT)
Garrya
Garryaceae
Garryales
Gasparobythus
Gasteropelecidae
Gasterosteoidei(sticklebacks and relatives)
Gasterotropis
Gasteruptiidae
Gasteruptiinae
Gastonia(EXTINCT)
Gastrellarius
G-blanchardi
G-honestus
G-unicarum
Gastrisus
Gastrobothrus
Gastrodelphyidae
Gastrogmus
Gastrolamprusa
Gastromicans
G-albopilosa
G-hondurensis
G-levispina
G-noxiosa
G-vigens
Gastropaga
G-(Gastropaga)
G-(Rougemontia)
Gastrophaena
Gastrophryne
Gastrophrynoides
Gastropoda(snails, slugs, limpets, nudibranchs)
Gastropodidae
Gastropus
Gastrorhopalus
Gastrosteata
Gastrotheca
Gastrotricha(incertae sedis)
Gatesclarkeanini
Gauromyrmex
G-acanthinus
G-bengakalisi
Gauropterus
Gaviiformes(Loons)
Gayomyia
Gayundah
Gazella(gazelles) (monophyly uncertain)
G-arabica(Arabian gazelle)
G-bennettii(Indian gazelle)
G-bilkis(Queen of Sheba's gazelle)
G-cuvieri(Cuvier's gazelle or mountain gazelle)
G-dama(dama gazelle)
G-dorcas(Dorcas gazelle)
G-gazella(Arabian gazelle or mountain gazelle)
G-granti(Grant's gazelle)
G-leptoceros(rhim gazelle or slender-horned gazelle)
G-rufifrons(red-fronted gazelle)
G-rufina(red gazelle)
G-saudiya(Saudi Arabian gazelle)
G-soemmerringii(Sömmerring's gazelle)
G-spekei(Speke's gazelle)
G-subgutturosa(goitered gazelle)
G-thomsonii(Thomson's gazelle)
Gazellospira(EXTINCT)
Gazoryctra
G-chishimana
G-confusus
G-fuscoargenteus
G-ganna
G-hyperboreus
G-lembertii
G-macilentus
G-mathewi
G-mcglshani
G-novigannus
G-pulcher
G-roseicaput
G-sciophanes
G-wielgusi
Ge geta
Geastrales
Geballusa
G-microtreta
G-nannotreta
G-oligotreta
G-polytreta
G-rex
Gegenemene(EXTINCT) (incertae sedis)
Gegenes
G-hottentota
G-niso
G-nostrodamus
G-pumilio
Gehringia olympica
Gehringiini(incertae sedis)
Geissoloma marginatum
Geitleria
Geitlerinema
Geitoneura
G-acantha
G-klugii
G-minyas
Gekkota
Gelae
Gelastocoridae(toad bugs)
Gelechiidae(twirler moths) (monophyly uncertain)
Gelechioidea(twirler moths and relatives)
Gelidiales
Gelidibacter
Gelidiella
Gelidium coulteri clade(includes species of Gelidium)
Gelidium pusillum
"Gelidium"
Gelocidae(EXTINCT)
Gelotia
Gelria
Gelsemiaceae
Gelyelloida
Gemella
Gemelus
Geminiviridae
Gemmata
Gemmatimonadetes(Gram-negative bacteria lacking DAP in their cell envelopes)
Genecerus
Genestiellina
Gengidae
Genisteae
Genistoid clade
Gennadota
Gentianaceae(gentian family)
Gentianales
Gentilicamelus(EXTINCT) (incertae sedis)
Gentilina
Genuotermes
Genustes lutata
Genyophryne
Genyophryninae
Geobacillus
Geobaenini
Geobiastes squamiger(Scaly Ground Roller)
Geocolus
Geocrinia
Geodermatophilus
Geodromicus
G-(Brachydromicus)
G-(Geodromicus)
Geogale aurita(large-eared tenrec)
Geogalinae
Geoglossaceae
Geoglossum
Geoica
Geolabididae(EXTINCT)
Geolimnichus
Geolycosa
Geomantis larvoides
Geometridae(geometer moths)
Geometroidea(geometer moths and swallowtail moths)
Geomitopsis
G-(Geomitopsis)
G-(Pseudogeomitopsis)
Geomydoecus
G-actuosi
G-albati
G-alcorni
G-alleni
G-angularis
G-aurei aurei
G-aurei grahamensis
G-bajaiensis
G-betleyae
G-biagiae
G-bulleri bulleri
G-bulleri intermedius
G-bulleri melanuri
G-burti
G-californicus
G-centralis
G-chapini
G-cherrei
G-chiapensis
G-chihuahuae chihuahuae
G-chihuahuae emersoni
G-clausonae
G-cliftoni
G-copei
G-coronadoi coronadoi
G-coronadoi saccharalis
G-coronadoi submerriami
G-costaricensis
G-craigi
G-crovelloi
G-dakotensis
G-dalgleishi
G-davidhafneri
G-duchesnensis
G-ewingi
G-expansus
G-extimi
G-fuchsi
G-fulvescens
G-fulvi
G-geomydis
G-guadalupensis
G-heaneyi
G-hoffmani
G-hueyi
G-idahoensis
G-illinoensis
G-jaliscoensis
G-jonesi
G-limitaris bakeri
G-limitaris halli
G-limitaris limitaris
G-limitaris tolteci
G-martini
G-mcgregori
G-merriami
G-mexicanus
G-mobilensis
G-musculi
G-nadleri
G-nayaritensis
G-nebrathkensis
G-neotruncatus
G-oklahomensis
G-oregonus
G-panamensis dariensis
G-panamensis panamensis
G-pattoni
G-perotensis irolonis
G-perotensis perotensis
G-polydentatus angustirostris
G-polydentatus polydentatus
G-pygacanthi
G-quadridentatus
G-scleritus
G-setzeri
G-shastensis
G-sinolae
G-spickai
G-subcalifornicus
G-subgeomydis
G-subnubili
G-tamaulipensis
G-telli
G-texanus texanus
G-texanus tropicalis
G-thaeleri
G-thomomyus
G-tolucae
G-traubi
G-trichopi
G-truncatus
G-umbrini
G-ustulati clarkii
G-ustulati ustulati
G-veracruzensis
G-warmanae
G-welleri multilineatus
G-welleri welleri
G-wernecki planiceps
G-wernecki wernecki
G-yucatanensis
Geomyoidea(pocket gophers, kangaroo rats, kangaroo mice, pocket mice)
Geomysaprinus(~33 species)
Geonomeae
Geophilella
Geophilidae(monophyly uncertain)
Geophilomorpha
Geopinus(incertae sedis)
Geopora
Geopselaphus
Georgenia
Georgia Representatives
Georgia representatives
Georgiomeryx(EXTINCT)
Georissidae
Geoscapheus
Geosiphon
Geostiba
G-(Acanthosipalia)
G-(Anatologeostiba)
G-(Chondridiosipalia)
G-(Dichondrosipalia)
G-(Geostiba)
G-(Indatheta)
G-(Myoposipalia)
G-(Odontosipalia)
G-(Prionosipalia)
G-(Sibiota)
G-(Sipalotricha)
G-(Sphenosipalia)
G-(Tetratropogeostiba)
G-(Trachyglutosipalia)
G-(Triptychosipalia)
G-(Tropogastrosipalia)
G-(Typhlusida)
Geostibasoma
Geothespis australis
Geothrix fermentans
Geotoga
Geotria
Geovibrio
Geoxus
Gephyra brunneusPax 1909
Gephyra dohrniv. Koch 1878
Gephyrosaurus(EXTINCT)
Gephyrostegidae(EXTINCT)
Gephyrothuriidae0(incertae sedis)
Geraesta
Gerallus
Geraniaceae(geranium family, incl. Hypseocharitaceae)
Geraniales
Geranoaetus
Geranospiza
Gerbillinae(gerbils, jirds, and sand rats)
Gerhardia
Gericlavodes
Germainites
Gerosis
G-bhagava
G-celebica
G-corona
G-limax
G-phisara
G-sinica
G-tristis
G-yuani
Gerrardinaceae
Gerridae(water striders, pond skaters)
Gerromorpha(water striders, water measurers, velvet water bugs)
Gesciella
Gesneriaceae(gesneriad family)
Gesnerieae
Gesnerioideae
Gesomyrmecini
Gesomyrmex
G-chaperi
G-expectans
G-hoernesi
G-howardi
G-kalshoveni
G-luzonensis
G-miegi
G-spatulatus
Gesta
G-austerus
G-gesta
G-heteropterus
G-inga
G-invisus
Geyeriella mertensi(EXTINCT)0(incertae sedis)
Gharesia
Ghelna
G-barrowsi
G-canadensis
G-castaneus
G-sexmaculatus
Ghesquierella
Ghesquierites
Ghirobocyathus(EXTINCT)
Giachinusa
Giardiavirus
Gibberathrix
Gibbotermes
Gibocercus
Gibosia
Gideona
Giebeliidae
Gigantactinidae(Whipnose Seadevils)
Gigantactis
Gigantiops destructor
Gigantocamelus(EXTINCT)
Gigantohyrax(EXTINCT)
Gigantolina elongata(= Austramphilina elongata)
Gigantolina magna
Gigantopsocus
G-metallicus
Gigarthrus
Gigartinales
Gigasiphon
Gigasiricidae(EXTINCT)
Gigaspora
Gigasporaceae
Gigatitan(EXTINCT)
Gigatitanidae
Gigliotoscelis simulans
Gildella suavis
Gilia
Giliastrum
Gilieae
Gilisenium hueberi(EXTINCT) (incertae sedis)
Gillisia
Gillisius
Gilpichthys(EXTINCT) (incertae sedis)
Gimantis
G-assamica
G-authaemon
G-insularis
Gindanes
G-bora
G-brebisson
G-brontinus
Ginema thomasi
Ginglymocladus
Ginkgos
Ginkgoscia
Giraffa(giraffes)
G-camelopardalis(giraffe)
G-gracilis(EXTINCT)
G-jumae(EXTINCT)
G-priscilla(EXTINCT)
G-punjabiensis(EXTINCT)
G-pygmaea(EXTINCT)
G-sivalensis(EXTINCT)
G-stillei(EXTINCT)
Giraffidae
Giraffoidea(giraffe, okapi, and their extinct relatives)
Giraffokeryx(EXTINCT)
Gisekia
Gislenia
Giulianium
Glabelytron(EXTINCT) (incertae sedis)
Glacicavicola
Glacicavicolini
Glaciera
Gladicosa
Glaphyriinae
Glaphyromyrmex oligocenicus(EXTINCT)
Glareolidae(pratincoles)
Glastus
Glaucidium(Pygmy Owls, Owlets)
G-bolivianum(Yungas Pygmy Owl)
G-brasilianum(Ferruginous Pygmy Owl)
G-brodiei(Collared Owlet)
G-californicum(Northern Pygmy Owl)
G-capense(African Barred Owlet)
G-castanonotum(Chestnut-backed Owlet)
G-castanopterum(Javan Owlet)
G-costaricanum(Costa Rican Pygmy Owl)
G-cuculoides(Asian Barred Owlet)
G-gnoma(Mountain Pygmy Owl)
G-griseiceps(Central American Pygmy Owl)
G-hardyi(Amazonian Pygmy Owl)
G-hoskinsii(Cape Pygmy Owl)
G-jardinii(Andean Pygmy Owl)
G-minutissimum(East Brazilian Pygmy Owl)
G-mooreorum(Pernambuco Pygmy Owl)
G-nana(Austral Pygmy Owl)
G-nubicola(Cloud-forest Pygmy Owl)
G-palmarum(Colima Pygmy Owl)
G-parkeri(Subtropical Pygmy Owl)
G-passerinum(Eurasian Pygmy Owl)
G-perlatum(Pearl-spotted Owlet)
G-peruanum(Pacific Pygmy Owl)
G-radiatum(Jungle Owlet)
G-sanchezi(Tamaulipas Pygmy Owl)
G-siju(Cuban Pygmy Owl)
G-sjostedti(Sjostedt's Barred Owlet)
G-tephronotum(Red-chested Owlet)
Glaucomys
Glaucophytes(protists with photosynthetic endosymbionts)
Gleicheniaceae
Glennia(incertae sedis)
Glenus
Gliatactis crassusGravier 1918
Glires
Gliridae(dormice and hazel mice)
Globa
Globicatella
Globidiellum
Globitermes
Globosulus
Globulosina(monophyly uncertain)
Gloeobacter
Gloeocapsa
Gloeophyllales
Gloeothece
Glomerexis(incertae sedis)
Glomerida(pill millipedes)
G-e
Glomeridellidae
Glomeridesmida
Glomeromycota(arbuscular mycorrhizal fungi and relatives)
Glomus (group C)
Glomus (groups A and B)
Glossata
Glossinidae
Glossopteridaceae(EXTINCT)
Glossosomatidae(Spicipalpia)
Glossostoma
Glossotermes
Gloxinieae
Glyceridae
Glyceriformia
Glycomycineae
Glycyrrhiza
Glymma
Glyphesthus
G-(Aleioglyphesthus)
G-(Glyphesthus)
Glyphinaphis
Glyphipterigidae(sedge moths)
Glyphiulidae
Glyphobythus
Glyphoglossus
Glypholoma
Glypholomatinae
Glyphoperidium
G-bursaRoule 1909
Glyphostylum
G-calyxRoule 1909
Glyphotes
Glyptoma
Glyptomina
Glyptopeltis(incertae sedis)
Glyptosister
Glyptotermes
Gnamptodontinae
Gnamptogenys
G-aculeaticoxae
Gnaphosidae(ground spiders)
Gnaphosoidea
Gnathamitermes
Gnathamitermes magnoculus(EXTINCT) (Lower Miocene of California, USA) (incertae sedis)
Gnathaphanus
Gnathiidea
Gnatholotrochus
Gnatholycosa
Gnathoncus(~23 species)
Gnathoryphium
Gnathostomaria
Gnathostomata(jawed vertebrates)
Gnathostomula
Gnathostomulida(jaw worms) (incertae sedis)
Gnathosyne akkolkensis(EXTINCT)
Gnathotriche
G-exclamationis
G-mundina
Gnathusa
Gnathymenus
Gnesion
Gnetales
Gnetum
G-acutum
G-africanum
G-arobreum
G-bosavicum
G-buchholzianum
G-camporum
G-cleistostachyum
G-contractum
G-costatum
G-cuspidatum
G-diminutum
G-globosum
G-gnemon
G-gnemonoides
G-gracilipes
G-hainanense
G-klossii
G-latifolium
G-leptostachyum
G-leyboldii
G-loerzingii
G-lofuense
G-macrostachyum
G-microcarpum
G-montanum
G-neglectum
G-nodiflorum
G-oblongum
G-oxycarpum
G-paniculatum
G-parvifolium
G-pendulum
G-raya
G-ridleyi
G-schwackeanum
G-tenuifolium
G-ula
G-urens
G-venosum
Gnoerichia
Gnophodes
G-bestimena
G-chelys
G-grogani
Gnorimopsar chopi(Chopi Blackbird)
Gnorosus
Gnypeta
Gnypetalia
Gnypetella
Gnypetoidea
Gnypetosoma
Goannagnathia(incertae sedis)
Gobiocerus(EXTINCT)
Godartiana
G-byses
G-muscosa
Godyridina
Godyris
G-crinippa
G-dircenna
G-duillia
G-kedema
G-lauta
G-nepos
G-nero
G-panthyale
G-sappho
G-zavaleta
Godzilliidae
Godzilliognomus frondosus
Godzillius robustus
Goeridae
Golasa
Golasidius
Golasina
Golasites
Goldenbergia(EXTINCT)
Goleba
Golfingia(non-monophyletic)
Golfingiiformes
Golovatchiidae
Gomalia
Gomortega nitida
Gomphales
Gomphocerinae(includes Chrysochraontinae J & B)
Gomphomastacinae(incertae sedis)
Gomphotheriidae(EXTINCT)
Gomyella
Gomyia
Gomyopsis
Gonactinia
GonatidaeHoyle, 1886
Gonatista
G-grisea
G-jaiba
G-major
G-phryganoides
G-reticulata
Gonatistella
G-gongylodes
G-trachelophyllus
GonatopsisSasaki, 1920
G-borealisSasaki, 1923
G-japonicusOkiyama 1969
G-makkoOkutani & Nemoto 1964
G-octopedatusSasaki, 1920
G-okutaniiNesis 1972(incertae sedis)
G-sp. A
Gonatozygaceae
GonatusGray, 1849
G-antarcticusLönnberg 1898
G-berryiNaef 1923
G-californiensisYoung 1972
G-fabricii(Lichtenstein 1818)
G-kamtschaticus(Middendorff 1849)
G-madokaiKubodera & Okutani 1977
G-middendorffiKubodera & Okutani 1981
G-onyxYoung 1972
G-oregonensisJefferts 1985
G-pyrosYoung 1972
G-steenstrupiKristensen 1981
G-ursabrunaeJefferts 1985
Gondraena
Gondwanalox clade
Gonepteryx
G-amintha
G-cleobule
G-cleopatra
G-farinosa
G-maderensis
G-mahaguru
G-maxima
G-palmae
G-rhamni
Gongylus
G-gongylodes
G-trachelophyllus
Goniacerini
Goniaceritae
Goniaceroides
Goniacerus
Goniastes
Gonididae
Goniocorella
Goniodidae
Goniodiformia
Goniodoidea
Goniomellus
Goniomma
G-baeticum
G-blanci
G-collingwoodi
G-decipiens
G-hispanicum
G-kugleri
G-punicum
Gonionycha
Goniotropis
G-angulicollis
G-batesi
G-brasiliensis
G-cayennensis
G-kuntzeni
G-morio
G-parca
G-setifer
Goniusa
Gonodactylidae
Gonorhynchiformes
Gonypeta
G-borneana
G-brigittae
G-brunneri
G-punctata
G-rotundata
G-simplex
Gonypetella
G-atra
G-atrocephala
G-australis
G-carinata
G-deletrix
G-flavicornis
G-fusca
G-fuscipes
G-infumata
G-ivoirensis
G-kilimandjarica
G-punctata
Gonypetoides brevipennis
Gonypetyllis semuncialis
Goodeniaceae
Googarna
Gootiella
Gordiida
Gordius(non-monophyletic)
Gordon
Gordonia
Gordonius
Gorgonopsia(EXTINCT)
Gorgopas
G-agylla
G-chlorocephala
G-gutta
G-petale
G-trochilus
Gorgopis
G-alticola
G-annulosa
G-armillata
G-auratilis
G-aurifuscata
G-butlerii
G-caffra
G-centaurica
G-cochlias
G-crudeni
G-furcata
G-fuscalis
G-grisescens
G-hunti
G-inornata
G-intervallata
G-leucopetala
G-libania
G-lobata
G-olivaceonotata
G-pallidiflava
G-pholidota
G-ptiloscelis
G-salti
G-serangota
G-subrimosa
G-tanganyikaensis
G-zellerii
Gorgopsina(EXTINCT)
Gorgosaurus libratus(EXTINCT)
Gorgyra
G-aburae
G-afikpo
G-aretina
G-bibulus
G-bina
G-bule
G-diva
G-diversata
G-heterochrus
G-johnstoni
G-kalinzu
G-minima
G-mocquerysii
G-pali
G-rubescens
G-sara
G-sola
G-subfacatus
G-subflavidus
Gorgythion
G-alcandra
G-begga
G-beggina
G-canda
G-plautia
G-vox
Gorilla
G-beringei
G-gorilla
Gouleta
G-cayennense
G-gentryi
G-notiophiloides
G-spangleri
Goupiaceae
Gourlayia
Gourvesia
Gracilariales
Gracilentulus
Gracilibacillus
Gracillariidae
Gracillariinae
Gracillarioidea(leafminer moths and relatives)
Gradungulidae
Grais
Grallatotermes
Grallina(mud-nest builders)
Gralloperinthus
Gramminopleurus
Grammitidaceae
Grammomys
Grammopelta
Grammositus(EXTINCT)
GraneledoneJoubin, 1918
Granila
Granulicatella
Granuloreticulosa(amoebae, mostly Reticulomyxa and foraminifera)
Granulovirus
Graomys
G-domorum
G-dorae(EXTINCT)
G-edithae(incertae sedis)
G-griseoflavus
Graphipterini
Graphiptilidae(EXTINCT)
Graphiptilus(EXTINCT)
Grapholitini
Gravieripus
Green plants(= Viridaeplantae: green algae (including prasinophytes), higher plants)
Greenideidae
Gregarinasina(Gregarines)
Gregoria albocinctaHutton 1878
Greta(monophyly uncertain)
G-[n. sp. 10]
G-[n. sp. 1]
G-[n. sp. 2]
G-[n. sp. 3]
G-[n. sp. 4]
G-[n. sp. 5]
G-[n. sp. 6]
G-[n. sp. 7]
G-[n. sp. 8]
G-[n. sp. 9]
G-alphesiboea
G-andromica
G-annette
G-cubana
G-depauperata
G-dercetis
G-diaphanus
G-enigma
G-esula
G-gardneri
G-hermana
G-libethris
G-lojana
G-lydia
G-morgane
G-ochretis
G-oneidodes
G-ortygia
G-polissena
G-theudelinda
Gretella gracilis
Gretna
G-balenge
G-bugoma
G-carmen
G-cylinda
G-lacida
G-waga
G-zaremba
Grevillia
/Grewioideae
Greya(greya moths)
G-enchrysa
G-kononenkoi0(incertae sedis)
G-marginimaculata0(incertae sedis)
G-mitellae
G-obscura
G-obscuromaculata
G-pectinifera
G-piperella(non-monophyletic)
G-politella
G-powelli
G-punctiferella
G-reticulata
G-solenobiella(non-monophyletic)
G-sparsipunctella0(incertae sedis)
G-subalba
G-suffusca
G-variabilis
G-variata
Greys(EXTINCT)
Gridellius
Griffiniella
Griffonia
Grigiotermes
GrimalditeuthisJoubin, 1898
Grimaldivania ackermani(EXTINCT)
Grimmiales
GrimpellaRobson, 1928*
GrimpoteuthisRobson, 1932
G-abyssicolaO'Shea, 1999
G-bathynectesVoss & Pearcy, 1990
G-boyleiCollins 2003
G-challengeriCollins 2003
G-discoveryiCollins 2003
G-hippocrepium(Hoyle, 1904)
G-innominata(O'Shea, 1999)
G-meangensis(Hoyle, 1985)
G-megaptera(Verrill, 1885)
G-pacifica(Hoyle, 1885)
G-plena(Verrill, 1885)
G-tuftsiVoss & Pearcy, 1990
G-umbellata(Fischer, 1883)
G-wuelkeriGrimpe, 1920
Gripopterygidae
Griselinia
G-carlomunozii
G-jodinifolia
G-littoralis
G-lucida
G-racemosa
G-ruscifolia
G-scandens
Griveaudia
Griveaudiinae
Grodum
Gromphadorhina
Grosphus
Grossulariaceae
Grouvellina
G-cinerea
G-cooperi
G-cuneata
G-dentipes
G-descarpentriesi
G-divergens
G-edentata
G-gigas
G-grouvellei
G-hexadon0(incertae sedis)
G-hova
G-montana
G-radama
G-ranavalona
G-tubericeps
Grubbia
Grubbiaceae
Grues
Gruidae(Cranes)
Gruiformes(Cranes, Rails, and Coots) (monophyly uncertain)
Grus americana(Whooping Crane)
Grus antigone(Sarus Crane)
Grus canadensis(Sandhill Crane)
Grus carunculata(Wattled Crane)
Grus grus(Common Crane)
Grus japonensis(Red-crowned Crane)
Grus leucogeranus(Siberian Crane)
Grus monacha(Hooded Crane)
Grus nigricollis(Black-necked Crane)
Grus rubicunda(Brolga)
Grus vipio(White-naped Crane)
Gryllacrididae(leaf-rolling and raspy crickets)
Grylloblattodea(ice bugs, rock crawlers)
Gryptaulacus
Guajira
Guaramacalus
Gubarra
Guibourtia
Guildayichthyiformes(EXTINCT)
Guilfoylia
Guillaumius
Gunayan
G-rhacia
G-rubricollis
G-timaeus
Gunneraceae
Gunnerales
Gurvanocoleus(EXTINCT)
Guttaviridae
Guttera plumifera(Plumed Guineafowl)
Guttera pucherani(Crested Guineafowl)
Guyanobius
Guyniidae
Gyalectales
Gylippidae
Gymnanthelius
Gymnarchidae
Gymnochlora stellata
Gymnochthebius
Gymnocrex(Blue-faced Rail and relatives)
G-plumbeiventris(Bare-eyed Rail)
G-rosenbergii(Blue-faced Rail)
G-talaudensis(Talaud Rail)
Gymnoglaux lawrencii(Bare-legged Owl)
Gymnolaemata
Gymnomystax mexicanus(Oriole Blackbird)
Gymnonyx
Gymnophiona(Caecilians)
Gymnophrea(several genera of amoebae)
Gymnopileae
GymnorhinaAustralian magpie
Gymnosphaerida(a type of heliozoon)
Gymnostachys
Gymnosteris
Gymnotidae
Gymnotiformes
Gymnusa
G-atra
G-brevicornis
G-campbelli
G-grandiceps
G-inexspectata
G-konopackii
G-miyashitai0(incertae sedis)
G-pseudovariegata
G-smetanai
G-variegata
Gymnusini
Gyna
Gynandromorphus
Gynandrotarsus
Gyninae
Gynopeltis0(incertae sedis)
Gynotyphlus
Gypaetus
Gypohierax
Gyps
Gyptini
Gyptis
Gyractis excavataBoveri 1893
Gyractis pallidaBoveri 1893
Gyretes
Gyrinidae
Gyrinophilus
Gyrinus
Gyrocheilus
Gyrocotylidea
Gyroga
Gyrohypnus
G-(Gyrohypnus)
G-(Xenoxantholinus)
Gyromantis
G-kraussii
G-occidentalis
Gyronotus
Gyronycha
Gyrophaena
G-(Agaricophaena)
G-(Enkentrophaena)
G-(Gyrophaena)
G-(Leptarthrophaena)
G-(Orphnebioidea)
G-(Phaenogyra)
G-(Razia)
Gyrophaenina
Gyropidae
Gyrosmilia
Gyrostemonaceae
Gyrostoma
G-Haddoni[sic] Lager 1911
G-Sancti-Thomae[sic] Pax 1910
G-dubiaCarlgren 1900
G-dysancritumPax 1907
Gyrostoma glaucaAnnandale 1915
G-hertwigiKwietniewski 1897
G-incertumMc Murrich [sic] 1904
G-monodiCarlgren 1927
G-selkirkeiMc Murrich [sic] 1904
G-stuhlmanniCarlgren 1900
G-sulcatumLager 1911
G-tristisCarlgren 1900
G-tulearensePax 1909
Gyrovirus
gamma Proteobacteria
gentle lemurs
geometricus clade
gomphodonts(EXTINCT)
greater bush babies