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Individual/Organization:
Zakrzewski, R.J.
Class:
Reptilia
Filter by
Phylum
Chordata (838)
Order
Crocodylia (12)
Pterosauria (4)
Saurischia (3)
Squamata (176)
Testudines (497)
Family
(1)
(4)
Alligatoridae (4)
Camarasauridae (1)
Colubridae (18)
Crocodylidae (3)
Dolichosauridae (1)
Emydidae (1)
Mosasauridae (28)
Testudinidae (8)
and 3 more
Genus
Alligator (4)
Camarasaurus (1)
Clidastes (2)
Coluber (2)
Coniasaurus (1)
Ectenosaurus (1)
Geochelone (7)
Heterodon (2)
Lampropeltis (2)
Pantherophis (1)
Platecarpus (1)
Pteranodon (4)
Rhinocheilus (1)
Stylemys (1)
Texasophis (1)
Thamnophis (5)
Toxochelys (1)
Tylosaurus (7)
and 11 more
has media
Has media (560)
Has no media (280)
Individual/Organization
Sternberg, G.F. (4)
Joyner, N. (1)
Tidball, C.H. (1)
Nelson, M.E. (202)
Jones, D. (14)
Kolb, K.K. (23)
Zehr, D.D. (10)
and 57 more
Period
Cretaceous (174)
Jurassic (3)
Neogene (460)
Paleogene (111)
Quaternary (85)
Epoch
Eocene (60)
Holocene (2)
Lower (119)
Miocene (437)
Oligocene (44)
Paleocene (3)
Pleistocene (49)
Pliocene (17)
Upper (47)
and 2 more
Age
Aptian (80)
Calabrian (8)
Campanian (6)
Lutetian (5)
Middle (25)
Rupelian (12)
Santonian (26)
Turonian (7)
and 1 more
Formation
Ballard (6)
Bridger (7)
Broadwater (4)
Brule (4)
Carlile (1)
Cedar Mountain (119)
Crooked Creek (10)
Denver (3)
Evanston (6)
Fowkes (4)
Graneros (3)
Green River (44)
Greenhorn (2)
Hell Creek (1)
Kingsdown (2)
Kiowa (5)
Morrison (2)
Niobrara (27)
Ogallala (417)
Pierre (6)
Rexroad (1)
Uinta (5)
White River (5)
and 16 more
Member
Atwater (9)
Black's Fork (4)
Fairport (1)
Missler (6)
Myton (5)
Pfeifer (2)
Sharon Springs (4)
Smoky Hill (23)
Twin Buttes (3)
Unit II (1)
Unit IV (1)
V (1)
Valentine (5)
XI (1)
and 7 more
Country
United States of America (838)
State/Province
Colorado (5)
Kansas (535)
Montana (1)
Nebraska (54)
Oklahoma (1)
South Dakota (5)
Texas (1)
Utah (192)
Wyoming (44)
and 2 more
County
Arapahoe (3)
Brown (3)
Cherry (2)
Cheyenne (2)
Clark (49)
Converse (26)
Dawes (18)
Donley (1)
Ellis (68)
Emery (121)
Frontage Road (8)
Frontier (1)
Garden (1)
Gove (8)
Graham (214)
Harding (1)
Harper (1)
Hodgeman (2)
Lane (1)
Lincoln (3)
Lincoln (1)
Logan (9)
Logan (2)
McCone (1)
McPherson (22)
Meade (19)
Morrill (4)
Morton (9)
Norton (11)
Osborne (4)
Pennington (4)
Phillips (45)
Reno (1)
Rice (2)
Rooks (11)
Russell (4)
Scottsbluff (8)
Seward (2)
Sheridan (1)
Sherman (1)
Sioux (17)
Smith (21)
Summit (17)
Sweetwater (4)
Trego (10)
Uinta (10)
Uintah (54)
Wallace (8)
and 41 more