Purgatory Hill (Paleocene of the United States)

Also known as UCMP V-71202

Where: McCone County, Montana (47.8° N, 106.1° W: paleocoordinates 54.0° N, 80.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Collins Ranch Member (Tullock Formation), Puercan (66.0 - 63.3 Ma)

• just above the undated Y-Coal in chron 29n: Swisher et al. 1993; Y-Coal per se was not dated, and dated W-Coal is not identifiable in McCone County

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial

Reposited in the UCMP

Primary reference: L. M. Van Valen and R. E. Sloan. 1965. The earliest primates. Science 150(3697):743-745 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14766: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd and Deborah Weinstein

Creative Commons license: CC BY (attribution)

Taxonomic list

• "about 5 other insectivorans" mentioned by Van Valen 1978 may include the following: mixodectid, said to be new - this is Protungulatum: Szalay 1969a insectivore, said to be new palaeoryctid, said to be new
unclassified
  -
Bivalvia
 Ostreida - Gryphaeidae
"? Pycnodonta indet." = Pycnodonte
"? Pycnodonta indet." = Pycnodonte Fischer von Waldheim 1835 oyster
Chondrichthyes
 Sclerorhynchiformes - Sclerorhynchidae
cf. Ischyrhiza avonicola Estes 1964 cartilaginous fish
 Odontaspidida - Isuridae
Isuridae indet. Gray 1851 mackerel shark
 Myliobatiformes - Dasyatidae
Dasyatidae indet. Jordan 1888 whiptail stingray
Actinopteri
 Acipenseriformes - Acipenseridae
Acipenser sp. Linnaeus 1758 sturgeon
 Teleostei -
 Elopiformes - Phyllodontidae
Phyllodus paulkatoi6 Estes and Hiatt 1978
 Teleostei -
Perciformes indet. Stirton 1953 perch-like fish
 Amiiformes - Amiidae
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Osteichthyes
 Proteida - Batrachosauroididae
Prodesmodon copei Estes 1964 tetrapod
Opisthotriton kayi Auffenberg 1961 tetrapod
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Lisserpeton bairdi Estes 1965 salamander
Reptilia
 Testudines - Trionychidae
Trionychidae indet.2 Gray 1825 softshell turtle
 Testudines - Compsemydidae
Compsemys victa Leidy 1856 turtle
 Testudines - Baenidae
 Loricata -
Crocodylia indet.3 crocodilian
 Crocodylia - Alligatoridae
Brachychampsa sp. Gilmore 1911 crocodilian
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
Mammalia
 Cimolesta - Cimolestidae
cf. Gelastops sp. Simpson 1935 eutherian
said to be new; repeated by Van Valen 1978
Procerberus plutonis10 Van Valen 1978 eutherian
said to be new
 Cimolesta - Palaeoryctidae
cf. Pararyctes sp.10 Van Valen 1966 eutherian
 Cimolesta - Pentacodontidae
cf. Aphronorus sp.10 Simpson 1935 eutherian
 Leptictida - Leptictidae
Prodiacodon crustulum10 Novacek 1977 eutherian
Palaeictops sp. Matthew 1899 eutherian
said to be new
 Primates -
Purgatorius unio n. sp. Van Valen and Sloan 1965 primate
Pandemonium dis n. sp.11 Van Valen 1994 primate
 Tribosphenida -
Ungulata indet.7 Linnaeus 1766 placental
 Tribosphenida - Periptychidae
Oxyacodon marshater10 Van Valen 1978 condylarth
Tinuviel eurydice10 Van Valen 1978 condylarth
could include new species "cf. Hemithlaeus"
Anisonchus oligistus Gazin 1941 condylarth
 Tribosphenida - Nyctitheriidae
Leptacodon proserpinae10 Van Valen 1978 placental
 Macroscelidea - Apheliscidae
Haplaletes andakupensis10 Van Valen 1978 elephant shrew
 Tribosphenida - Arctocyonidae
Protungulatum sloani n. sp.10 Van Valen 1978 condylarth
said to be new
Chriacus calenancus10 Van Valen 1978 condylarth
said to be new
 Acreodi - Triisodontidae
Eoconodon nidhoggi10 Van Valen 1978 eutherian
said to be new
Eoconodon hutchisoni5 Clemens 2011 eutherian
 Acreodi -
Oxyclaenus pugnax Simpson 1935 eutherian
present in original list; includes "Thangorodrim thalion" of Van Valen 1978; may include "O. sp." said to be new
 Theriiformes - Peradectidae
Peradectes minor n. sp.4 Clemens 2006 metatherian
said to be new
 Multituberculata -
Cimexomys minor Sloan and Van Valen 1965 multituberculate
 Multituberculata - Eucosmodontidae
Eucosmodontidae indet.1 Jepsen 1940 multituberculate
said to be new
 Multituberculata - Neoplagiaulacidae
Parectypodus sp. Jepsen 1930 multituberculate
said to be new
Mesodma formosa Marsh 1889 multituberculate
Mesodma cf. ambigua Jepsen 1940 multituberculate
Neoplagiaulax nelsoni n. sp.9 Sloan 1987 multituberculate
said to be new
 Multituberculata - Ptilodontidae
Kimbetohia sp. Simpson 1936 multituberculate
said to be new
Ptilodus tsosiensis7 Sloan 1981 multituberculate
could include Kimbetohia sp.
 Multituberculata - Taeniolabididae
Taeniolabis sp.8 Cope 1882 multituberculate