1a. Head retraction laterally.
Click the media-clip for a full comparison of Pleurodira and Cryptodira:
Pleurodiran/cryptodiran turtles
Suborder Pleurodira
Step 2
1b. Head retraction vertically.
Suborder Cryptodira
Step 77
421 possible taxa remaining show common names
- Acanthochelys macrocephala
- Acanthochelys pallidipectoris
- Acanthochelys radiolata
- Acanthochelys spixii
- Amyda cartilaginea
- Apalone ferox
- Apalone mutica calvata
- Apalone mutica mutica
- Apalone spinifera aspera
- Apalone spinifera ater
- Apalone spinifera emoryi
- Apalone spinifera guadalupensis
- Apalone spinifera hartwegi
- Apalone spinifera pallida
- Apalone spinifera spinifera
- Aspideretes gangeticus
- Aspideretes hurum
- Aspideretes leithii
- Aspideretes nigricans
- Batagur baska
- Callagur borneoensis
- Caretta caretta
- Carettochelys insculpta
- Chelodina expansa
- Chelodina longicollis
- Chelodina mccordi
- Chelodina novaeguineae
- Chelodina oblonga
- Chelodina parkeri
- Chelodina pritchardi
- Chelodina reimanni
- Chelodina rugosa
- Chelodina siebenrocki
- Chelodina steindachneri
- Chelonia mydas agassizii
- Chelonia mydas mydas
- Chelus fimbriatus
- Chelydra acutirostris
- Chelydra rossignonii
- Chelydra serpentina osceola
- Chelydra serpentina serpentina
- Chersina angulata
- Chinemys nigricans
- Chinemys reevesii
- Chitra chitra
- Chitra indica
- Chrysemys picta bellii
- Chrysemys picta dorsalis
- Chrysemys picta marginata
- Chrysemys picta picta
- Claudius angustatus
- Clemmys guttata
- Clemmys insculpta
- Clemmys marmorata marmorata
- Clemmys marmorata pallida
- Clemmys muhlenbergii
- Cuora amboinensis amboinensis
- Cuora amboinensis couro
- Cuora amboinensis kamaroma
- Cuora aurocapitata
- Cuora flavomarginata evelynae
- Cuora flavomarginata flavomarginata
- Cuora flavomarginata sinensis
- Cuora galbinifrons bourreti
- Cuora galbinifrons galbinifrons
- Cuora galbinifrons hainanensis
- Cuora galbinifrons serrata
- Cuora mccordi
- Cuora pani
- Cuora trifasciata
- Cuora yunnanensis
- Cuora zhoui
- Cyclanorbis elegans
- Cyclanorbis senegalensis
- Cyclemys dentata
- Cyclemys n.sp.
- Cyclemys tcheponensis
- Cycloderma aubryi
- Cycloderma frenatum
- Deirochelys reticularia
- Dermatemys mawii
- Dermochelys coriacea
- Dogania subplana
- Elseya dentata
- Elseya latisternum
- Elseya novaeguineae
- Elusor macrurus
- Emydoidea blandingii
- Emydura australis
- Emydura krefftii
- Emydura macquarrii
- Emydura signata
- Emydura subglobosa
- Emydura victoriae
- Emys orbicularis
- Emys orbicularis colchica
- Emys orbicularis eiselti
- Emys orbicularis fritzjuergenobstii
- Emys orbicularis hellenica
- Emys orbicularis hispanica
- Emys orbicularis iberica
- Emys orbicularis lanzai
- Emys orbicularis luteofusca
- Emys orbicularis occidentalis
- Emys orbicularis orbicularis
- Emys orbicularis persica
- Eretmochelys imbricata bissa
- Eretmochelys imbricata imbricata
- Erymnochelys madagascariensis
- Geochelone abingdoni
- Geochelone arnoldi
- Geochelone becki
- Geochelone carbonaria
- Geochelone chathamensis
- Geochelone chilensis
- Geochelone darwini
- Geochelone denticulata
- Geochelone elegans
- Geochelone ephippium
- Geochelone gigantea
- Geochelone guentheri
- Geochelone hololissa
- Geochelone hoodensis
- Geochelone microphyes
- Geochelone nigrita
- Geochelone pardalis
- Geochelone phantastica
- Geochelone platynota
- Geochelone radiata
- Geochelone sulcata
- Geochelone vandenburghi
- Geochelone vicina
- Geochelone yniphora
- Geoclemys hamiltonii
- Geoemyda japonica
- Geoemyda spengleri
- Geoemyda yuwonoi
- Gopherus agassizii
- Gopherus berlandieri
- Gopherus flavomarginatus
- Gopherus polyphemus
- Graptemys barbouri
- Graptemys caglei
- Graptemys ernsti
- Graptemys flavimaculata
- Graptemys geographica
- Graptemys gibbonsi
- Graptemys nigrinoda delticola
- Graptemys nigrinoda nigrinoda
- Graptemys oculifera
- Graptemys ouachitensis ouachitensis
- Graptemys ouachitensis sabinensis
- Graptemys pseudogeographica kohnii
- Graptemys pseudogeographica pseudogeographica
- Graptemys pulchra
- Graptemys versa
- Hardella thurjii indi
- Hardella thurjii thurjii
- Heosemys depressa
- Heosemys grandis
- Heosemys leytensis
- Heosemys silvatica
- Heosemys spinosa
- Hieremys annandalii
- Homopus areolatus
- Homopus boulengeri
- Homopus femoralis
- Homopus signatus cafer
- Homopus signatus signatus
- Homopus “bergeri”
- Hydromedusa maximiliani
- Hydromedusa tectifera
- Indotestudo elongata
- Indotestudo forstenii
- Kachuga dhongoka
- Kachuga kachuga
- Kachuga smithii pallidipes
- Kachuga smithii smithii
- Kachuga sylhetensis
- Kachuga tecta
- Kachuga tentoria circumdata
- Kachuga tentoria flaviventer
- Kachuga tentoria tentoria
- Kachuga trivittata
- Kinixys belliana belliana
- Kinixys belliana nogueyi
- Kinixys erosa
- Kinixys homeana
- Kinixys lobatsiana
- Kinixys natalensis
- Kinixys spekii
- Kinosternon acutum
- Kinosternon alamosae
- Kinosternon angustipons
- Kinosternon baurii
- Kinosternon chimalhuaca
- Kinosternon creaseri
- Kinosternon dunni
- Kinosternon flavescens arizonense
- Kinosternon flavescens durangoense
- Kinosternon flavescens flavescens
- Kinosternon herrerai
- Kinosternon hirtipes chapalaense
- Kinosternon hirtipes hirtipes
- Kinosternon hirtipes magdalense
- Kinosternon hirtipes megacephalum
- Kinosternon hirtipes murrayi
- Kinosternon hirtipes tarascense
- Kinosternon integrum
- Kinosternon leucostomum leucostomum
- Kinosternon leucostomum postinguinale
- Kinosternon oaxacae
- Kinosternon scorpioides abaxillare
- Kinosternon scorpioides albogulare
- Kinosternon scorpioides cruentatum
- Kinosternon scorpioides scorpioides
- Kinosternon sonoriense longifemorale
- Kinosternon sonoriense sonoriense
- Kinosternon subrubrum hippocrepis
- Kinosternon subrubrum steindachneri
- Kinosternon subrubrum subrubrum
- Lepidochelys kempii
- Lepidochelys olivacea
- Lissemys punctata andersoni
- Lissemys punctata punctata
- Lissemys punctata scutata
- Macroclemys temminckii
- Malaclemys terrapin centrata
- Malaclemys terrapin littoralis
- Malaclemys terrapin macrospilota
- Malaclemys terrapin pileata
- Malaclemys terrapin rhizophorarum
- Malaclemys terrapin tequesta
- Malaclemys terrapin terrapin
- Malacochersus tornieri
- Malayemys subtrijuga
- Manouria emys emys
- Manouria emys phayrei
- Manouria impressa
- Mauremys annamensis
- Mauremys caspica caspica
- Mauremys caspica rivulata
- Mauremys caspica siebenrocki
- Mauremys caspica ventrimaculata
- Mauremys iversoni
- Mauremys japonica
- Mauremys leprosa
- Mauremys mutica kami
- Mauremys mutica mutica
- Melanochelys tricarinata
- Melanochelys trijuga coronata
- Melanochelys trijuga edeniana
- Melanochelys trijuga indopeninsularis
- Melanochelys trijuga parkeri
- Melanochelys trijuga thermalis
- Melanochelys trijuga trijuga
- Morenia ocellata
- Morenia petersi
- Natator depressus
- Nilssonia formosa
- Notochelys platynota
- Ocadia glyphistoma
- Ocadia philippeni
- Ocadia sinensis
- Orlitia borneensis
- Palea steindachneri
- Pelochelys bibroni
- Pelochelys cantorii
- Pelodiscus sinensis
- Pelomedusa subrufa nigra
- Pelomedusa subrufa olivacea
- Pelomedusa subrufa subrufa
- Peltocephalus dumerilianus
- Pelusios adansonii
- Pelusios bechuanicus
- Pelusios broadleyi
- Pelusios carinatus
- Pelusios castaneus
- Pelusios castanoides castanoides
- Pelusios castanoides intergularis
- Pelusios chapini
- Pelusios gabonensis
- Pelusios nanus
- Pelusios niger
- Pelusios rhodesianus
- Pelusios seychellensis
- Pelusios sinuatus
- Pelusios subniger parietalis
- Pelusios subniger subniger
- Pelusios upembae
- Pelusios williamsi laurenti
- Pelusios williamsi lutescens
- Pelusios williamsi williamsi
- Phrynops dahli
- Phrynops geoffroanus geoffroanus
- Phrynops geoffroanus tuberosus
- Phrynops gibbus
- Phrynops hilarii
- Phrynops hogei
- Phrynops nasutus
- Phrynops raniceps
- Phrynops rufipes
- Phrynops tuberculatus
- Phrynops vanderhaegei
- Phrynops williamsi
- Phrynops zuliae
- Platemys platycephala melanonota
- Platemys platycephala platycephala
- Platysternon megacephalum megacephalum
- Platysternon megacephalum peguense
- Platysternon megacephalum shiui
- Platysternon megacephalum tristernalis
- Platysternon megacephalum vogeli
- Podocnemis erythrocephala
- Podocnemis expansa
- Podocnemis lewyana
- Podocnemis sextuberculata
- Podocnemis unifilis
- Podocnemis vogli
- Psammobates geometricus
- Psammobates oculiferus
- Psammobates tentorius tentorius
- Psammobates tentorius trimeni
- Psammobates tentorius verroxii
- Pseudemydura umbrina
- Pseudemys alabamensis
- Pseudemys concinna concinna
- Pseudemys concinna floridana
- Pseudemys concinna suwanniensis
- Pseudemys gorzugi
- Pseudemys nelsoni
- Pseudemys peninsularis
- Pseudemys rubriventris
- Pseudemys texana
- Pyxidea mouhotii
- Pyxis arachnoides arachnoides
- Pyxis arachnoides brygooi
- Pyxis arachnoides oblonga
- Pyxis planicauda
- Rafetus euphraticus
- Rafetus swinhoei
- Rheodytes leukops
- Rhinoclemmys annulata
- Rhinoclemmys areolata
- Rhinoclemmys funerea
- Rhinoclemmys melanosterna
- Rhinoclemmys nasuta
- Rhinoclemmys pulcherrima incisa
- Rhinoclemmys pulcherrima manni
- Rhinoclemmys pulcherrima pulcherrima
- Rhinoclemmys pulcherrima rogerbarbouri
- Rhinoclemmys punctularia diademata
- Rhinoclemmys punctularia flammigera
- Rhinoclemmys punctularia punctularia
- Rhinoclemmys rubida perixantha
- Rhinoclemmys rubida rubida
- Sacalia bealei
- Sacalia pseudocellata
- Sacalia quadriocellata
- Siebenrockiella crassicollis
- Staurotypus salvinii
- Staurotypus triporcatus
- Sternotherus carinatus
- Sternotherus depressus
- Sternotherus minor minor
- Sternotherus minor peltifer
- Sternotherus odoratus
- Terrapene carolina bauri
- Terrapene carolina carolina
- Terrapene carolina major
- Terrapene carolina mexicana
- Terrapene carolina triunguis
- Terrapene carolina yucatana
- Terrapene coahuila
- Terrapene nelsoni klauberi
- Terrapene nelsoni nelsoni
- Terrapene ornata luteola
- Terrapene ornata ornata
- Testudo graeca anamurensis
- Testudo graeca armeniaca
- Testudo graeca graeca
- Testudo graeca ibera
- Testudo graeca nikolskii
- Testudo graeca terrestris
- Testudo graeca zarudnyi
- Testudo hermanni boettgeri
- Testudo hermanni hermanni
- Testudo horsfieldii
- Testudo horsfieldii horsfieldii
- Testudo horsfieldii kazachstanica
- Testudo horsfieldii rustamovi
- Testudo kleinmanni
- Testudo marginata
- Testudo weissingeri
- Trachemys adiutrix
- Trachemys decorata
- Trachemys decussata angusta
- Trachemys decussata decussata
- Trachemys dorbignyi brasiliensis
- Trachemys dorbignyi dorbignyi
- Trachemys gaigeae
- Trachemys scripta callirostris
- Trachemys scripta cataspila
- Trachemys scripta chichiriviche
- Trachemys scripta elegans
- Trachemys scripta emolli
- Trachemys scripta grayi
- Trachemys scripta hartwegi
- Trachemys scripta hiltoni
- Trachemys scripta nebulosa
- Trachemys scripta ornata
- Trachemys scripta scripta
- Trachemys scripta taylori
- Trachemys scripta troostii
- Trachemys scripta venusta
- Trachemys scripta yaquia
- Trachemys stejnegeri malonei
- Trachemys stejnegeri stejnegeri
- Trachemys stejnegeri vicina
- Trachemys terrapen
- Trionyx triunguis
Decision path