APPENDIX 2

Year-By-Year Lists of Specimens Collected by Hatcher and His Field Crews

Note: In all the yearly lists of specimens collected, only those identified to genus in the specimen catalogues of the institutions cited are listed, except for higher taxa within the Dinosauria. Thus, in almost every yearly list, there are more specimens held in the institution’s collection than are listed, which is why simply adding up the specimens for the genera listed will not add up to the “specimens total” provided in the headers for these lists. Also, in the lists below, the specimens are assigned to genera as they are currently identified in the institutions’ databases. For possible generic synonomies, see text and Glossary.

1884

HATCHER

708 specimens total in USNM

Cenozoic Amphibians, Reptiles, and Mammals

Hemphillian, 9–5 MA (Republican River Formation, KS)

Aceratherium

1

Aelurodon

6

Barbourofelis

1

Bufo

6

Griphippus

3

Hesperomys

1

Hipparion

3

Mastodon

1

Merychippus

1

Microtus

9

Neohipparion

5

Palaeoelaphne

1

Palaeospiza

1

Perognathus

2

Pliohippus

3

Proictinia

1

Prosthennops

1

Protohippus

6

Tayra

1

Teleoceras

638

Terrapene

1

1885

HATCHER

1,324 specimens total in USNM and YPM

Cenezoic Amphibians, Reptiles, and Mammals

Hemphillian, 9–5 MA (Republican River Formation, KS)

Aelurodon

4

Aepycamelus

1

Aphelops

11

Aramus

1

Barbourofelis

1

Bufo

1

Epigaulus

1

Geochelone

6

Gomphotherium

7

Hemiauchenia

2

Hesperomys

1

Megatylopus

3

Merycodus

4

Pliohippus

1

“Procamelus”

1

Teleoceras

1,163

“Yumaceras”

1

Paleozoic Reptiles, Amphibians, and Early Relatives of Mammals

Permian, Leonardian 280–270 MA (Clear Fork Group, TX)

Captorhinus

1

Diadectes

1

Dimetrodon

6

Diplocaulus

3

Edaphosaurus

4

Eryops

6

Labidosaurus

3

Lysorophus

2

Orthacanthus

2

Trimerorhachis

2

Mesozoic Reptiles

Triassic, 252–202 MA

Rutiodon

2

Note: Permian and Triassic age ranges from GSA Timescale 2012; Hemphillian age range from Tedford, et al. 2004.

1886

HATCHER

227 specimens total in USNM

Cenozoic Amphibians, Reptiles, and Mammals

Paleogene, Eocene (Chadron Formation, SD)

If from the Chadron Fm., they would be Chadronian 37–34 MA.

Hyaenodon

1

Mesohippus

5

Trigonias

3

Paleogene, Oligocene (White River Group, SD and NE)

Possibly Orellan/Whitneyan, 34–30 MA (Brule Formation)

Agriochoerus

2

Allops

4

Ancodon

1

Archaeotherium

9

Brontops

14

Brontotherium

41

Caenopus

8

Cynodictis

1

Eumys

2

Hoplophoneus

1

Hyaenodon

2

Hypertragulus

2

Hypisodus

1

Hyracodon

1

Leptomeryx

1

Megacerops

5

Menodus

39

Merycoidodon

10

Miohippus

2

Palaeolagus

9

Stylemys

8

Subhyracodon

14

Titanotherium

1

Trigonias

8

Neogene, Miocene, NE

Aphelops

1

Ischyrocyon

1

Equus

2

Pliohippus

1

Procamelus

1

Pseudhipparion

1

Cenozoic, Miocene, KS

Presumably Long Island Q: Hemphillian 9–5 MA (Republican River Formation)

Barbourofelis

1

Nimravides

1

Quaternary, NE

Equus

2

Mammuthus

1

Mesozoic Dinosaurs

Cretaceous (Potomac Group, MD)

Astrodon

1

1887 TO EARLY 1888

HATCHER

171 total specimens in USNM

Cenozoic Fish, Amphibians, Reptiles, and Mammals

Paleogene, Eocene (Chadron Formation, SD)

If from the Chadron Fm., they would be Chadronian 37–34 MA.

Allops

5

Brontops

3

Brontotherium

10

Diploconus

1

Megacerops

10

Symborodon

2

Titanops

1

Titanotherium

1

Orellan/Whitneyan,34–30 MA (Brule Formation, SD)

Archaeotherium

1

Merycoidodon

2

Hemingfordian, 18–15 MA (Calvert Formation, MD)

Aetobatis

2

Carcharhinus

3

Carcharodon

1

Galeocerdo

1

Hemipristis

2

Isurus

3

Notorynchus

1

Rhinoptera

1

Hemphillian, 9–8 MA (Alaucha Clay, FL)

Aphelops

2

Serridentinus

2

Cretaceous 145–66 MA (Patuxent Formation, MD)

Allosaurus

1

Astrodon

62

Coelurus

1

Dryptosaurus

1

Glyptops

1

Ornithomimus

10

Priconocon

1

Prothero and Emry 2004; https://en.wikipedia.org/wiki/Calvert_Cliffs_State_Park; https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/sites/mixsons-bone-bed/

1888

HATCHER

150 specimens total, mostly in USNM

Cenozoic Amphibians, Reptiles, and Mammals

Paleogene (Chadron Formation, SD)

If from the Chadron Fm., they should be Chadronian 37–34 MA.

Allops

4

Brontops

6

Brontotherium

11

Megacerops

5

Menodus

12

“Testudo”

1

Trigonias

1

Paleogene, Oligocene (White River Group, SD, NE)

Possibly Orellan/Whitneyan, 34–30 MA (Brule Formation)

Aciprion

1

Archaeotherium (YPM)

1

Helodermoides

1

Leptictis

1

Peltosaurus

2

Rhineura

1

Saniwa

1

Paleogene, Brule Formation, SD

Possibly Orellan/Whitneyan, 34–30 MA (Brule Formation)

Eumys

1

Heliscomys

1

Cretaceous Reptiles

Cretaceous, Judith River Formation, MT

If from Judith River Fm., Late Cretaceous, 78–75 MA

Aspideretes

1

Aublysodon

1

Baena

1

Ceratops

3

Champsosaurus

1

Corythosaurus

1

Edmontonia

2

Hadrosaurus

1

Ornithomimus

2

Palaeoscincus

1

Panoplosaurus

1

Synechodus

1

Troodon

1

Tyrannosauridae (Deinodon?)

1

Cretaceous, Lance Formation, WY

Probably Late Cretaceous, 68–66 MA (Lance Formation)

Champsosaurus

1

Cretaceous 145–66 MA (Patuxent Formation, MD)

Astrodon

41

Goniopholis

1

1889

HATCHER

814 specimens total

Smithsonian USNM: 188 specimens total

Cenozoic Amphibians, Reptiles, and Mammals

Hemingfordian, 18–15 MA (Calvert Formation, MD)

Carcharodon

1

Odontaspis

1

Mesozoic Reptiles and Mammals

Cretaceous, Lance Formation, MT

Probably Late Cretaceous, 68–66 MA (Lance Formation)

Allacodon

2

Alphadon

8

Chamops

4

Cimolestes

1

Cimolodon

16

Cimolomys

6

Didelphodon

4

Ectoconodon

1

Gypsonictops

16

Harpagosaurus

1

Iguanavus

1

Meniscoessus

8

Mesodma

14

Odaxosaurus

1

Pachycephalosaurus

1

Pediomys

21

Peltosaurus

1

Protolambda

2

Scapherpeton

1

Stagodon

3

Triceratops

5

Cretaceous, 145–66 MA (Patuxent Formation, MD)

Astrodon

6

Late Triassic, 237–201 MA, NC

Rutiodon

1

Yale Peabody Museum: 626 specimens total collected by Hatcher

Late Jurassic, 150 MA (Morrison Formation, SD)

Barosaurus

1

Late Cretaceous, 68–66 MA (Lance Formation, WY)

Albanerpeton

1

Allacodon

4

Allognathosuchus

2

Alphadon

8

Ankylosauria

1

Aublysodon

2

Baena

1

Batodon

2

Belonostomus

3

Camptomus

4

Ceratops

1

Ceratopsia

3

Chamops

8

Cimolestes

15

Cimolodon

15

Cimolomys

68

Cimolopteryx

1

Colpodontosaurus

1

Coriops

4

Didelphodon

10

Dipriodon

2

Dromaeosauridae

3

Dryolestes

1

Enantiornithes

1

Gypsonictops

9

Hadrosauridae

1

Halodon

3

Hatcheritherium

1

Hypsolophodontidae

4

Kindleia

1

Leptoceratops

1

Leptochamops

2

Lisserpeton

7

Melvius

1

Meniscoessus

46

Mesodma

11

Nanomyops

2

Nanomys

1

Nyssodon

1

Oracodon

2

Ornithischia

4

Ornithopoda

1

Paraderma

1

Paralbula

1

Paronychodon

12

Pediomys

31

Piceoerpeton

1

Platacodon

1

Selenacodon

2

Stagodon

5

Telacodon

1

Therapoda

31

Trachodon

1

Triceratops

3

Trionyx

1

Tripriodon

2

Troodon

3

Tyrannosauridae

6

Tyrannosaurus

1

Oligocene, 34–23 MA (White River Group, SD)

Testudo

1

1890

HATCHER

403 specimens total
Smithsonian USNM: 115 specimens total

Cenozoic Mammals

Hemphillian, 9–8 MA (Alaucha Clay, FL)

Aphelops

1

Procamelus

1

Serridentinus

1

Teleoceras

14

Chadronian, 37–34 MA (Chadron Formation, SD)

Megacerops

1

Mesozoic Reptiles and Mammals

Cretaceous, Lance Formation, WY

Probably Late Cretaceous, 68–66 MA (Lance Formation)

Baena

2

Basilemys

1

Didelphodon

1

Didelphops

1

Dinosauria (indeterminate)

1

Edmontosaurus

13

Ornithomimus

2

Pediomys

5

Scapherpeton

1

Stagodon

2

Thescelosaurus

1

Thescelus

1

Triceratops

30

Troodon

1

Tyrannosaurus

1

Yale Peabody Museum: 285 specimens total

Orellan/Whitneyan, 34–30 MA (Brule Formation, SD)

Hyaenodon

1

Late Cretaceous, 68–66 MA (Lance Formation, WY)

Alphadon

11

Aublysodon

1

Belonostomus

2

Cimolodon

1

Cimolomys

17

Cimolopteryx

2

Didelphodon

3

Essonodon

1

Gypsonictops

2

Habrosaurus

2

Hadrosauridae

2

Kindleia

1

Leptoceratops

1

Lisserpeton

3

Litakis

1

Meniscoessus

14

Mesodma

11

Neornithes

1

Opisthotriton

1

Paronychodon

2

Pediomys

9

Piceoerpeton

4

Procaimanoidea

2

Prodesmodon

2

Saurornithoides

1

Stagodon

1

Stygimoloch

1

Therapoda

27

Triceratops

2

Tyrannosauridae

2

1891

HATCHER

290 specimens total
Smithsonian USNM: 195 specimens total

Mesozoic Reptiles and Mammals

Cretaceous, Lance Formation, WY

Probably Late Cretaceous, 68–66 MA (Lance Formation)

Alethesaurus

1

Allacodon

6

Alphadon

16

Batodon

1

Brachychampsa

2

Chamops

3

Cimolestes

2

Cimolomys

3

Baena

2

Basilemys

1

Didelphodon

4

Didelphops

2

Ectoconodon

2

Edmontosaurus

8

Exostinus

2

Glasbius

1

Gypsonictops

15

Habrosaurus

2

Iguanavus

1

Lanceosaurus

3

Meniscoessus

5

Mesodma

1

Opisthotriton

1

Oracodon

2

Ornithomimus

1

Pediomys

18

Protolambda

1

Scapherpeton

1

Stagodon

1

Thescelosaurus

7

Triceratops

17

Tripriodon

1

Tyrannosaurus

2

Yale Peabody Museum: 95 specimens total

Late Cretaceous, 68-66 MA (Lance Formation, WY)

Alphadon

1

Aublysodon

1

Batodon

11

Belonostomus

1

Cimolomys

9

Gypsonictops

4

Lisserpeton

1

Meniscoessus

5

Pediomys

5

Therapoda

4

Torosaurus

2

Trachodon

1

Triceratops

7

Troodon

1

1892

HATCHER

391 specimens total
Smithsonian USNM: 141 specimens total

Mesozoic Reptiles and Mammals

Cretaceous, Lance Formation, WY

Probably Late Cretaceous, 68–66 MA (Lance Formation)

Allacodon

1

Alphadon

5

Brachychampsa

3

Chamops

2

Cimolodon

8

Cimolomys

11

Coniophis

1

Didelphodon

3

Didelphops

1

Gypsonictops

3

Habrosaurus

1

Lanceosaurus

1

Meniscoessus

12

Mesodma

9

Odaxosaurus

1

Oracodon

2

Parasaniwa

2

Peltosaurus

2

Prionosaurus

2

Scapherpeton

4

Yale Peabody Museum: 250 specimens total

Late Cretaceous, 68–66 MA (Lance Formation, WY)

Acipenser

2

Alphadon

3

Aspideretes

1

Aublysodon

3

Axestemys

1

Baena

3

Chamops

2

Cimolestes

2

Cimolodon

3

Cimolomys

21

Contogenys

1

Didelphodon

1

Edmontosaurus

1

Gavia

1

Habrosaurus

1

Leptochamops

1

Meniscoessus

24

Meniscognathus

4

Opisthotriton

6

Paronychodon

1

Pediomys

19

Peltosaurus

2

Prodesmodon

2

Scapherpeton

8

Triceratops

2

Troodon

4

Tyrannosaurus

2

1893

HATCHER

257 specimens total now at YPM

Mesozoic Fish, Reptiles, and Mammals

Late Cretaceous, 68–66 MA (Lance Formation, WY)

Amia

1

Brachychampsa

1

Champsosaurus

1

Cimolopteryx

1

Coniophis

1

Cuttysarkus

1

Habrosaurus

2

Leidyosuchus

1

Lepisosteus

1

Meniscoessus

1

Myledaphus

1

Palaeosaniwa

2

Peltosaurus

1

Scapherpeton

1

Thescelosaurus

1

Cenozoic Amphibians, Reptiles, and Mammals

Chadronian, 37–34 MA (Chadron Formation, SD)

Alligator

1

Brontotherium

1

Hyracodon

1

Palaeolagus

1

Perchoerus

1

Poebrotherium

1

Subhyracodon

1

Titanotherium

8

Orellan, 34–32 MA (Brule Formation, SD)

Agriochoerus

1

Amphicaenopus

1

Bothriodon

2

Caenopus

4

Calamagras

1

Colodon

1

Cynodictis

1

Dinictis

2

Elomeryx

2

Elotherium

1

Entelodon

7

Eporeodon

27

Eumys

1

Hadroleptauchenia

2

Heptacodon

1

Hoplophoneus

1

Hyaenodon

1

Hyporhineura

1

Hyracodon

12

Ischyromys

1

Leptauchenia

21

Leptomeryx

1

Merycoidodon

5

Mesohippus

9

Metamynodon

1

Miohippus

2

Palaeolagus

1

Peltosaurus

1

Perchoerus

1

Protoceras

13

Rhineura

2

Scaptohyus

1

Scottimus

4

Stylemys

1

Subhyracodon

16

Whitneyan, 32–30 MA (Brule Formation, Poleslide Member, SD)

Elomeryx

4

Miocene, NE

Aelurodon

3

Merychyus

1

Neohipparion

2

Procamelus

1

Protohippus

1

Teleoceras

3

Vulpes

1

Pleistocene, NE

Canis

1

Chrysemys

1

Equus

14

Hayoceros

1

Mammuthus

1

Mylodon

1

Procamelus

2

1894

HATCHER

311 specimens total now at YPM

Cenozoic Reptiles and Mammals

Chadronian, 37–34 MA (Chadron Formation, SD)

Archaeotherium

1

Caenopus

1

Dinictis

1

Heptacodon

1

Hyaenodon

1

Leptomeryx

1

Menodus

1

Subhyracodon

1

Titanotherium

3

Trionyx

1

Orellan, 34–32 MA (Brule Formation)

Aceratherium

5

Agriochoerus

9

Archaeotherium

4

Bothriodon

3

Caenopus

7

Colodon

4

Daphoenus

1

Diceratherium

2

Dinictis

4

Elomeryx

1

Entelodon

3

Eporeodon

11

Hadroleptauchenia

1

Heptacodon

1

Hesperocyon

2

Homogalax

1

Hoplophoneus

3

Hyaenodon

10

Hyopotamus

1

Hyracodon

11

Ischyromys

9

Leptauchenia

8

Leptictis

7

Leptomeryx

4

Merycoidodon

28

Mesohippus

12

Metamynodon

25

Miohippus

3

Oreodon

1

Palaeolagus

3

Peltosaurus

1

Perchoerus

6

Poebrotherium

5

Protoceras

6

Stylemys

3

Subhyracodon

25

Whitneyan, 32–30 MA (Brule Formation, Poleslide Member, SD)

Entelodon

1

Eusmilus

1

Mesohippus

1

Miohippus

1

Protoceras

1

Subhyracodon

1

1895

HATCHER

200 specimens total now at YPM

Mesozoic Fish, Reptiles, and Mammals

Late Cretaceous, 68–66 MA (Lance Formation, WY)

Amia

1

Champsosaurus

1

Cimolestes

1

Delphodon

1

Lepisosteus

1

Leptochamops

1

Myledaphus

1

Pediomys

2

Triceratops

1

Cenozoic Reptiles and Mammals

Uintan, 46–40.5 MA (Uinta Formation, UT)

Achaenodon

3

Amynodon

23

Baena

1

Camelomeryx

1

Crocodylus

2

Diplacodon

14

Echmatemys

1

Elotherium

1

Eomoropus

1

Epihippus

7

Glyptosaurus

1

Hyopsodus

1

Ischyrotomus

2

Isectolophus

2

Leptoreodon

2

Leptotomus

6

Leptotragulus

2

Merycodesmus

1

Mesatirhinus

2

Mesonyx

2

Metarhinus

1

Mytonomys

1

Ourayia

3

Palaeosyops

5

Paramys

1

Plesiarctomys

1

Prodaphaenus

1

Protitanotherium

2

Protoreodon

15

Prototychus

2

Protylopus

3

Pseudotomus

1

Reithroparamys

1

Saniwa

1

Simidectes

1

Telmatherium

23

Triplopus

16

Uintatherium

6

Oligocene, White River Group, SD

Subhyracodon

1

Uinta MA: http://fossilworks.org/bridge.pl?action=displayInterval&interval_no=229

1896–1899

HATCHER PETERSON
PATAGONIAN SPECIMENS

1,022 specimens total now at YPM

Santacrucian, 19–16 MA, Santa Cruz Formation, Argentina

Abderites

3

Acaremys

9

Acdestis

4

Acrocyon

1

Adelphomys

1

Adinotherium

65

Analcimorphus

4

Asterostemma

1

Astrapothericulus

3

Astrapotherium

14

Aulocetus

1

Borhyaena

3

Calyptocephalella

2

Caudiverbera

2

Cladosictis

11

Cochlops

4

Diadiaphorus

10

Eocardia

36

Eucholoeops

3

Eucinepeltus

2

Glyptodon

8

Hapalops

88

Hegetotherium

25

Homalodotherium

10

Interatherium

44

Licaphrium

2

Megalonychotherium

1

Metopotoxus

1

Microbiotherium

2

Necrolestes

4

Nematherium

7

Neoreomys

59

Nesodon

93

Opisthodactylus

1

Pachyrukhos

24

Palaeospheniscus

1

Palaeothentes

5

Pelecyodon

2

Pelecyornis

2

Peltephilus

3

Perimys

35

Phororhacos

9

Planops

1

Pliolagostomus

8

Prepotherium

7

Priscodelphinus

1

Proeutatus

22

Proinia

2

Propalaeohoplophorus

8

Prosqualodon

1

Protamandua

1

Proterotherium

32

Prothylacynus

1

Protypotherium

80

Prozaedius

5

Psilopterus

9

Schismotherium

9

Schistomys

9

Sciamys

22

Sipalocyon

5

Spaniomys

6

Stegotherium

3

Steiromys

10

Stenotatus

4

Stenotephanos

2

Stichomys

11

Stilotherium

1

Theosodon

38

Thoatherium

21

Age: Vizcaíno. S., et al. 2012; Flynn et al. 2012

1900

421 specimens total at Carnegie Museum

HATCHER

344 specimens total

Tertiary Mammals (some with Utterback) and Reptiles

Chadronian, 37–34 MA (Chadron Formation, SD)

Archaeotherium

1

Brontops

3

Caenopus

1

Menodus

8

Mesohippus

1

Trigonias

4

Orellan 34–32 MA (Brule Formation, SD)

Archaeotherium

2

Calamagras

1

Centetodon

1

Daphoenus

1

Dinictis

1

Domnina

1

Eumys

15

Hesperocyon

2

Hoplophoneus

3

Hyaenodon

3

Hypertragulus

3

Hypisodus

2

Hyracodon

7

Ischyromys

2

Leptictis

1

Leptochoerus

4

Leptomeryx

15

Megalagus

1

Merycoidodon

4

Mesohippus

4

Palaeolagus

2

Peltosaurus

1

Peradectes

1

Poebrotherium

12

Scottimus

2

Stylemys

1

Arikareean, 30–19 MA (Monroe Creek Formation, NE)

Promeycochoerus

1

Others

Archaeotherium

2 (No data, Oligocene)

Peratherium

1 (No data, Oligocene)

Testudo (probably)

7 (No data, Oligocene)

Late Cretaceous, 68–66 MA (Lance Formation, WY)

Dinosaurs

Edmontosaurus

5

Thescelosaurus

1

Triceratops

8

Tyrannosaurus

1

Mammals

Alphadon

1

Cimolestes

1

Cimolodon

14

Cimolomys

10

Didelphodon

3

Euangelistes

1

Gypsonictops

3

Meniscoessus

10

Mesodma

5

Pediomys

20

Other Fish, Amphibians, and Reptiles

Amia

1

Odaxosaurus

3

Opisthotriton

3

PETERSON

45 specimens total

Dinosaurs and Other Reptiles

Late Jurassic, 150 MA (Morrison Formation, WY) with Gilmore

Apatosaurus

9

Camarasaurus

3

Creosaurus

1

Diplodocus

2

Opthalmosaurus

1

Stegosaurus

8

Tertiary Mammals

Orellan, 34–32 MA (Brule Formation, SD)

Ischyromys

13

Merycoidodon

1

Mesohippus

2

Palaeolagus

3

Paradjidaumo

1

Others

Miacis

1 (Green River Formation, Eocene)

Palaeocastor

1 (Harrison Formation, Miocene)

UTTERBACK

31 specimens total

Tertiary Mammals

Chadronian, 37–34 MA (Chadron Formation, SD)

Caenopus

1

Menodus

1

Merycoidodon

1

Orohippus

1

Orellan, 34–32 MA (Brule Formation, SD)

Hypisodus

1

Leptomeryx

1

Merycoidodon

13

Poebrotherium

2

Arikareean, 30–19 MA (Monroe Creek Formation, NE)

Promerycochoerus

1

Oligocene (no field data)

Aceratherium

1

Menodus

1

Merycoidodon

2

Early Miocene (Harrison Formation, NE)

Palaeocastor

1

1901

802 specimens total at Carnegie Museum

HATCHER

12 specimens total

Tertiary Mammals and Reptiles

Orellan, 34–32 MA (Brule Formation, SD)

Exostinus

1

Hypertragulus

3

Hypisodus

1

Leptomeryx

1

Oxydactylus

1

Trigonias

1

Others

Promerycochoerus

1 (No data, Miocene)

Stenomylus

1 (No data, Miocene)

PETERSON

758 specimens total

Tertiary Mammals and Reptiles

Chadronian, 37–34 MA (Chadron Formation, SD)

Menodus

2

Poebrotherium

1

Orellan, 34–32 MA (Brule Formation, SD)

Adjidaumo

2

Ankylodon

1

Archaeotherium

3

Bothriodon

1

Caenopus

8

Calamagras

1

Campestrallomys

1

Centetodon

1

Daphoenus

7

Desmatolagus

1

Dinictis

6

Eumys

36

Exostinus

1

Hesperocyon

17

Hoplophoneus

12

Hyaenondon

15

Hypertragulus

3

Hypisodus

15

Ischyromys

66

Leptictis

11

Leptochoerus

2

Leptomeryx

41

Limenetes

1

Megalagus

1

Merychyus

1

Merycoidodon

55

Mesohippus

34

Oligospermophilus

1

Palaeolagus

62

Paradjidaumo

3

Peltosaurus

2

Peratherium

2

Poebrotherium

49

Proamphicyon

1

Prosciurus

4

Protemnocyon

1

Rhineura

5

Stylemys

3

Arikareean, 30–19 MA (Upper Monroe Creek, Harrison Formation, NE)

Mesoreodon

1

Palaeocastor

1

Phenacocoelus

3

Promerycochoerus

8

Hemingfordian, 19–16 MA (Upper Loup Fork, NE)

Aleurocyon

1

Blastomeryx

1

Cyclopedius

1

Gopherus

1

Merychyus

39

Merycochoerus

7

Oxydactylus

10

Parahippus

4

Stenomylus

5

Tanymykter

1

Thinohyus

2

Ticholeptus

1

Others

Aelurodon

1 (Upper Harrison, Middle Miocene)

Cynodesmus

1 (Loup Fork, Miocene)

Diceratherium

1 (Lower Harrison, Early Miocene)

Merychyus

43 (Upper Harrison, Middle Miocene)

Merychyus

5 (Loup Fork, Miocene)

Merycochoerus

2 (Loup Fork, Miocene)

Merycochoerus

2 (Upper Harrison, Middle Miocene)

Merycodus

1 (Upper Harrison, Middle Miocene)

Moropus

3 (Loup Fork, Upper Loup Fork, Miocene)

Teleoceras

1 (Upper Harrison, Middle Miocene)

GILMORE

21 specimens total

Dinosaurs and Fish

Late Jurassic, 150 MA (Morrison Formation, WY)

Apatosaurus

2

Camarasaurus?

2

Ceratodus

1

Elosaurus

1

Stegosaurus

3

UTTERBACK

16 specimens total

Dinosaurs and Other Reptiles

Late Jurassic, 150 MA (Morrison Formation, CO)

Allosaurus

1

Apatosaurus

2

Ceratosaurus

1

Diplodocus

1

Haplocanthosaurus

5

Probaena

1

Mammals

Chadronian, 37–34 MA (Chadron Formation, SD)

Brontotherium

1

Arikareean, 30–19 MA (Harrison Formation, NE)

Oxydactylus

1

Others

Promerycochoerus

1 (No data, Miocene)

Stenomylus

1 (No data, Miocene)

1902

408 specimens total at Carnegie Museum

HATCHER

Nothing

PETERSON

173 specimens total

Dinosaurs

Late Jurassic, 150 MA (Morrison Formation, CO)

Camarasaurus

1

Tertiary Mammals and Egg

Chadronian, 37–34 MA (Chadron Formation, SD)

Bothriodon

1

Brachyrhyncocyon

1

Brontops

3

Menodus

1

Trigonias

1

Orellan, 34–32 MA (Brule Formation, SD)

Archaeotherium

14

Caenopus

6

Daphoenus

1

Dinictis

5

Eumys

20

Hesperocyon

3

Hoplophoneus

3

Hypertragulus

2

Hypisodus

1

Hyracodon

24

Leptictis

2

Leptomeryx

1

Merycoidodon

7

Mesohippus

21

Paradjidaumo

2

Peratherium

1

Poebrotherium

3

Protemnocyon

1

Arikareean 30–19 MA (Upper Monroe Creek Formation, NE)

Mesoreodon

1

Phenacocoelus

2

Promerycochoerus

3

Others

Allops

1 (Oligocene)

Merychyus

1 (Loup Fork, Miocene)

GILMORE

48 specimens total

Dinosaurs

Late Jurassic, 150 MA (Morrison Formation, WY)

Allosaurus

1

Apatosaurus

12

Camarasaurus

27

Diplodocus

1

Opthalmosaurus

1

Stegosaurus

4

UTTERBACK

3 specimens total

Dinosaurs

Late Jurassic, 150 MA (Morrison Formation, WY)

Diplodocus

1

Opthalmosaurus

1

DOUGLASS

184 specimens total

Dinosaurs and Other Reptiles

Late Cretaceous, 84–72 MA (“Belly River” Formation, MT)

Ornithomimus

1

Trionyx

1

Tertiary Mammals and Reptiles

Chadronian, 37–34 MA (Chadron, Totson, Renova Formations, MT)

Bathygenys

2

Colodon

2

Cylindrodon

1

Ischyromys

5

Leptomeryx

7

Menodus

2

Mesohippus

2

Palaeolagus

1

Orellan, 34–32 MA (Brule Formation, MT)

Leptauchenia

1

Mesohippus

1

Palaeolagus

2

Arikareean, 30–19 MA (John Day Formation, MT)

Mesocyon

1

Hemingfordian, 19–16 MA (No formation listed)

Merychippus

1

Barstovian, 16–12.5 MA (Lower Madison Valley, Madison Valley, Deep River, Sixmile Creek Formations, MT)

Alphalagus

1

Aphelops

1

Cyclopedius

9

Daphoenus

1

Eporeodon

2

Eumys

30

Hesperocyon

1

Leptomeryx

1

Mammut

1

Merychippus

1

Merycodus

1

Merycoides

2

Mesoreodon

8

Mylagaulus

1

Palaearctomys

1

Palaeocastor

1

Palaeolagus

2

Peratherium

1

Procamelus

3

Promerycochoerus

21

Protohippus

1

Stylemys

1

Testudo

2

Others

Eporeodon

1 (White River, Oligocene)

Mammut

2 (Loup Fork, Miocene)

Paradjidaumo

1 (Early Oligocene)

Protohippus

1 (Loup Fork, Miocene)

1903

256 specimens total at Carnegie Museum

HATCHER

4 specimens total

Dinosaurs and Other Reptiles

Late Cretaceous, 78–75 MA (Judith River Formation, MT)

Deinosuchus

1 (with Utterback)

Trionyx

1

Tyrannosaurus

1

PETERSON

Nothing

UTTERBACK

55 specimens total

Dinosaurs and Other Reptiles

Late Jurassic, 150 MA (Morrison Formation, WY)

Allosaurus

1

Apatosaurus

7

Camarasaurus

24

Diplodocus

3

Haplocanthosaurus

2

Late Cretaceous, 78–75 MA (Judith River Formation, MT)

Basilemys

1

Late Cretaceous, 68–66 MA (Hell Creek Formation, MT)

Edmontosaurus

1

GILMORE

33 specimens total

Dinosaurs, Other Reptiles, and Fish

Late Jurassic, 150 MA (Morrison Formation, WY)

Apatosaurus

1

Stegosaurus

1

Late Cretaceous, 87–82 MA (Niobrara Formation,KS)

Clidastes

3

Mosasaurus

1

Platycarpus

1

Pteranodon

19

Syllaemus

1

Tylosaurus

1

Xiphactinus

1

DOUGLASS

164 specimens total

Mammals and Reptiles

Late Cretaceous, 78–75 MA (Judith River Formation, MT)

Basilemys

1

Chadronian, 37–34 MA (Renova Formation, MT)

Agriochoerus

1

Ardynomys

3

Bathygenys

1

Colodon

10

Cylindrodon

2

Epoicotherium

1

Glyptosaurus

1

Hendryomeryx

1

Hyaenodon

1

Hyracodon

4

Ictops

4

Ischyromys

1

Limenetes

13

Megacerops

1

Menodus

1

Mesohippus

5

Micropternodus

1

Oreonetes

14

Palaeolagus

4

Paradjidaumo

3

Parictis

1

Peratherium

1

Pseudocylindrodon

5

Testudo

2

Trigonias

1

Arikareean, 30–19 MA (Cabbage Patch Beds, No Data)

Gregorymys

1

Merychyus

1

Temnocyon

1

Ticholeptus

1

Barstovian, 16–12.5 MA (Deep River Formation, MT)

Promerycochoerus

2

Others

Bird tracks

2 (? White River, Madison Valley, ? Oligocene)

Merycodus

1 (Sixmile Creek Formation, Miocene)

Promerycochoerus

3 (No data, Chadronian; Unnamed, Miocene)

Ticholeptus

2 (Unnamed, Miocene)

1904

117 specimens total at Carnegie Museum

Hatcher

Nothing

Peterson

110 specimens total

Tertiary Mammals and Reptiles

Chadronian, 37–34 MA (Gering Formation, NE)

Palaeocastor

1

Orellan, 34–32 MA (Brule Formation, SD)

Leptomeryx

1

Merycoidodon

1

Mesohippus

1

Peltosaurus

1

Poebrotherium

3

Arikareean, 30–19 MA (Harrison, Monroe Creek Formations, NE)

Cyclopidius

1

Daemonelix

1

Daphenodon

1

Delotrochanter

1

Diceratherium

8

Dinohyus

1

Euhapsis

1

Menoceras

7

Merychyus

6

Mesoreodon

8

Moropus

4

Nothocyon

2

Oxydactylus

1

Palaeocastor

14

Parahippus

2

Phenacocoelus

8

Promerycochoerus

10

Protomeryx

1

Sespia

1

Stenomylus

1

Sunkahetanka

1

Ticholeptus

1

Ysengrinia

1

Hemingfordian, 19–16 MA (Upper Loup Fork, NE)

Stenomylus

1

Others

Merycochoerus

1 (Loup Fork, Miocene)

Oxydactylus

1 (Harrison, Early Miocene)

DOUGLASS

4 specimens total

Tertiary Mammals

Barstovian, 16–12.5 MA (Madison Valley Formation, MT)

Aphelops

1

UTTERBACK

3 specimens total

Dinosaurs

Late Cretaceous, 68–66 MA (Hell Creek Formation, MT)

Triceratops

2