Here you will find a classification of bears based on their family (Ursidae). You can also see the scientific names as well as the time the bears lived. Also, see all the extinct bears marked with a †. If you want to learn more about a specific species of bear click the link (if available).

Family:  Ursidae	Extent / Latin Name
Subfamily:  Amphicynodontinae †
Genus:  Parictis †	38 mya. (million years ago)
Parictis bathygenus †	Parictis bathygenus
Parictis dakotensis †	Parictis dakotensis
Parictis gilpini †	Parictis gilpini
Parictis major †	Parictis major
Parictis montanus †	Parictis montanus
Parictis parvus †	Parictis parvus
Parictis personi †	Parictis personi
Parictis primaevus †	Parictis primaevus
Genus:  Allocyon †	28.5-29.5 mya.
Allocyon loganensis †	Allocyon loganensis
Genus:  Kolponomos †	20 mya.
Kolponomos clallamensis †	Kolponomos clallamensis
Kolponomos newportensis †	Kolponomos newportensis
Subfamily:  Hemicyoninae †
Genus:  Ursavus †	22 mya.
Ursavus brevirhinus †	Ursavus brevirhinus
Ursavus depereti †	Ursavus depereti
Ursavus ehrenbergi †	Ursavus ehrenbergi
The Dawn Bear †	Ursavus elmensis
Ursavus intermedius †	Ursavus intermedius
Ursavus isorei †	Ursavus isorei
Ursavus pawniensis †	Ursavus pawniensis
Ursavus primaevus †	Ursavus primaevus
Ursavus sylvestris †	Ursavus sylvestris
Subfamily:  Agriotheriinae †
Genus:  Indarctos †	11.1 – 5.3 mya.
Indarctos arctoides †	Indarctos arctoides
Indarctos atticus †	Indarctos atticus
Indarctos atticus anthracitis †	Indarctos atticus anthracitis (subspecies)
Indarctos atticus bakalovi †	Indarctos atticus bakalovi (subspecies)
Indarctos atticus lagrelii †	Indarctos atticus lagrelii (subspecies)
Indarctos atticus punjabiensis †	Indarctos atticus punjabiensis (subspecies)
Indarctos oregonensis †	Indarctos oregonensis
Indarctos salmontanus †	Indarctos salmontanus
Indarctos sinensis †	Indarctos sinensis
Indarctos vireti †	Indarctos vireti
Indarctos zdanskyi †	Indarctos zdanskyi
Genus:  Agriotherium †	9-2 mya.
Agriotherium africanum †	Agriotherium africanum
Agriotherium inexpectans †	Agriotherium inexpectans
Agriotherium roblesi †	Agriotherium roblesi
Agriotherium schneideri †	Agriotherium schneideri
Agriotherium sivalensis †	Agriotherium sivalensis
Subfamily:   Ailuropodinae	20 mya.
Genus:   Agriarctos †
Genus:   Ailurarctos †	8 mya.
Primal Panda †	Ailurarctos lufengensis
Ailurarctos yuanmouensis †	Ailurarctos yuanmouensis
Genus:   Ailuropoda	3-2 mya.
Pygmy Giant Panda †	Ailuropoda microta
Ailuropoda wulingshanensis †	Ailuropoda wulingshanensis
Ailuropoda baconi †	Ailuropoda baconi
Dwarf Panda †	Ailuropoda minor
Giant Panda Bear	Ailuropoda melanoleuca
Qinling Panda	Ailuropoda melanoleuca quinlingensis (subspecies)
Subfamily:  Tremarctinae
Genus:  Plionarctos †	8-7 mya.
Plionarctos edensis †	Plionarctos edensis
Plionarctos harroldorum †	Plionarctos harroldorum
Plionarctos telonensis †	Plionarctos telonensis
Genus:  Arctodus †	5-2 mya.
Brazilian Bear †	Arctodus braziliensis
Buenos Aires Bear †	Arctodus bonariensis
Giant Short-Faced Bear †	Arctodus simus
Pampas Bear †	Arctodus pamparus
Short-Faced Bear †	Arctodus pristinus
Genus:  Arctotherium †
Brazilian Short-Faced Bear †	Arctotherium brasilense
Argentine Short-Faced Bear †	Arctotherium latidens
Arctotherium enectum †	Arctotherium (Pararctotherium) enectum
Arctotherium brasiliensis †	Arctotherium (Pararctotherium) brasiliensis
Arctotherium pamparum †	Arctotherium (Pararctotherium) pamparum
Genus:  Tremarctos	2.5 mya.
Spectacled Bear	Tremarctos ornatus
Florida Cave Bear †	Tremarctos floridanus
Subfamily:  Ursinae
Genus: Ursus	4 – 5 mya.
Auvergne Bear †	Ursus minimus
Ursus minimus minimus †	Ursus minimus minimus (subspecies)
Ursus minimus boeckhi †	Ursus minimus boeckhi (subspecies)
Ursus abstrusus †	Ursus abstrusus
Etruscan Bear †	Ursus etruscus
Ursus etruscus etruscus †	Ursus etruscus etruscus (subspecies)
Ursus etruscus ruscinensis †	Ursus etruscus ruscinensis (subspecies)
Ursus etruscus arvernensis †	Ursus etruscus arvernensis (subspecies)
European Cave Bear †	Ursus spelaeus (300,000 years ago)
Brown Bear	Ursus arctos
Alaskan Grizzly Bear	Ursus arctos alascensis (subspecies)
Eurasian Brown Bear	Ursus arctos arctos (subspecies)
Kamchatka Brown Bear	Ursus arctos beringianus (subspecies)
California Golden Bear	Ursus arctos californicus (subspecies)
Siberian Brown Bear	Ursus arctos collaris (subspecies)
Atlas Bear †	Ursus arctos crowtheri (subspecies)
Alaskan Brown Bear †	Ursus arctos dalli (subspecies)
Peninsula Giant Bear	Ursus arctos gyas (subspecies)
Grizzly Bear	Ursus arctos horribilis (subspecies)
Himalayan Brown Bear	Ursus arctos isabellinus (subspecies)
Amur Brown Bear †	Ursus arctos lasiotus (subspecies)
Kodiak Bear	Ursus arctos middendorffi (subspecies)
Mexican Grizzly Bear	Ursus arctos nelsoni (subspecies) (invalid)
Tibetan Blue Bear	Ursus arctos pruinosus (subspecies)
Sitka Islands Bear	Ursus arctos sitkensis (subspecies)
Ursus arctos stikeensis	Ursus arctos stikeensis (subspecies)
Syrian Brown Bear	Ursus arctos syriacus (subspecies)
Polar Bear	Ursus maritimus
Early Polar Bear or Tyrant Sea Bear †	Ursus maritimus tyrannus (subspecies)
Modern Polar Bear	Ursus maritimus maritimus (subspecies)
American Black Bear	Ursus americanus
Olympic Black Bear	Ursus americanus altifrontalis (subspecies)
New Mexico Black Bear	Ursus americanus amblyceps (subspecies)
Minnesota Black Bear	Ursus americanus americanus (subspecies)
California Black Bear	Ursus americanus californiensis (subspecies)
Queen Charlotte Black Bear	Ursus americanus carlottae (subspecies)
Cinnamon Bear	Ursus americanus cinnamomum (subspecies)
Glacier Bear	Ursus americanus emmonsii (subspecies)
East Mexican Black Bear	Ursus americanus eremicus (subspecies)
Florida Black Bear	Ursus americanus floridanus (subspecies)
New Foundland Bear	Ursus americanus hamiltoni (subspecies)
Kermode Bear	Ursus americanus kermodei (subspecies)
Louisiana Black Bear	Ursus americanus luteolus (subspecies)
West Mexico Black Bear	Ursus americanus machetes (subspecies)
Kenai Black Bear	Ursus americanus perniger (subspecies)
Dall Black Bear	Ursus americanus pugnax (subspecies)
Vancouver Black Bear	Ursus americanus vancouveri (subspecies)
Asiatic Black Bear	Ursus thibetanus
Formosan Black Bear	Ursus thibetanus formosanus (subspecies)
Baluchistan Black Bear	Ursus thibetanus gedrosianus (subspecies)
Japanese Black Bear	Ursus thibetanus japonicus (subspecies)
Himalayan Black Bear	Ursus thibetanus laniger (subspecies)
Ursus thibetanus mupinensis	Ursus thibetanus mupinensis (subspecies)
Ursus thibetanus thibetanus	Ursus thibetanus thibetanus (subspecies)
Manchurian Black Bear	Ursus thibetanus ussuricus (subspecies)
Genus:  Helarctos
Sun Bear	Helarctos malayanus
Borneo Sun Bear	Helarctos malayanus euryspilus (subspecies)
Genus:  Melursus
Sloth Bear	Melursus urinus
Sri Lankan Sloth Bear	Melursus urinus inoratus (subspecies)
† – extinct

Resources:

• Classification of Black Bears – https://bear.org/classification-of-black-bears/
• Ursidae bears – https://animaldiversity.org/accounts/Ursidae/classification/
• Brown Bear (Ursus arctos) Taxonomy – http://ielc.libguides.com/sdzg/factsheets/brownbear/taxonomy
• Polar Bear Classification Sheet – https://seaworld.org/animals/all-about/polar-bear/classification/