PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Ptilodontoidea

Mammalia - Multituberculata

Taxonomy

Ptilodontoidea was named by Sloan and Van Valen (1965) [name based on Ptilodontidae Simpson 1927]. It is not extant. Its type is Ptilodontidae. It was considered monophyletic by Kielan-Jaworowska and Hurum (2001).

It was reranked as the unranked clade Ptilodontoidea by McKenna (1975); it was reranked as the superfamily Ptilodontoidea by Kielan-Jaworowska and Hurum (2001), Scott et al. (2002) and Kielan-Jaworowska et al. (2004).

It was assigned to Multituberculata by Sloan and Van Valen (1965), Clemens and Kielan-Jaworowska (1979), Lillegraven and McKenna (1986) and McKenna and Bell (1997); and to Cimolodonta by McKenna (1975), Kielan-Jaworowska and Hurum (2001), Scott et al. (2002) and Kielan-Jaworowska et al. (2004).

Subtaxa

Cimolodontidae, Neoliotomus, Neoplagiaulacidae (syn. Ectypodidae), Ptilodontidae (type family)

Synonymy list

Year	Name and author
1965	Ptilodontoidea Sloan and Van Valen p. 221
1975	Ptilodontoidea McKenna p. 40
1979	Ptilodontoidea Clemens and Kielan-Jaworowska p. 101
1986	Ptilodontoidea Lillegraven and McKenna p. 17
1997	Ptilodontoidea McKenna and Bell
2001	Ptilodontoidea Kielan-Jaworowska and Hurum p. 418
2002	Ptilodontoidea Scott et al. p. 692
2004	Ptilodontoidea Kielan-Jaworowska et al. pp. 255, 333

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria

Rank	Name	Author
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Allotheria	()
order	Multituberculata	Cope 1884
suborder	Cimolodonta	()
superfamily	Ptilodontoidea	()
superfamily	Ptilodontoidea	()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Superfm. †Ptilodontoidea Sloan and Van Valen 1965

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Fm. †Cimolodontidae Marsh 1889

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G. †Anconodon Jepsen 1940

†Anconodon cochranensis Russell 1929

Invalid names: Anconodon lewisi Sloan 1987 [synonym]

†Anconodon gidleyi Simpson 1935

†Anconodon russelli Simpson 1935

G. †Cimolodon Marsh 1889

†Cimolodon agilis Marsh 1892

†Cimolodon akersteni Weaver et al. 2019

†Cimolodon electus Fox 1971

†Cimolodon nitidus Marsh 1889

Invalid names: Allacodon rarus Marsh 1892 [synonym], Halodon serratus Marsh 1889 [synonym], Nanomys minutus Marsh 1889 [synonym]

†Cimolodon peregrinus Donohue et al. 2013

†Cimolodon similis Fox 1971

†Cimolodon wardi Eaton 2006

Invalid names: Nanomys Marsh 1889 [synonym]

G. †Liotomus Cope 1884

†Liotomus marshi Cope 1884

G. †Neoliotomus Jepsen 1930

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†Neoliotomus conventus Jepsen 1930

Fm. †Neoplagiaulacidae Ameghino 1890

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G. †Cernaysia Vianey-Liaud 1986

†Cernaysia davidi Vianey-Liaud 1986

†Cernaysia manueli Vianey-Liaud 1986

G. †Ectypodus Matthew and Granger 1921

†Ectypodus aphronorus Sloan 1987

†Ectypodus arctos Beard and Dawson 2014

†Ectypodus childei Kühne 1969

†Ectypodus laytoni Jepsen 1940

†Ectypodus lovei Sloan 1966

†Ectypodus musculus Matthew and Granger 1921

†Ectypodus powelli Jepsen 1940

†Ectypodus riansensis Marandat et al. 2012

†Ectypodus simpsoni Jepsen 1930

†Ectypodus szalayi Sloan 1981

†Ectypodus tardus Jepsen 1940

Invalid names: Charlesmooria Kühne 1969 [synonym]

G. †Filikomys Weaver et al. 2020

†Filikomys minor Eaton 2002

†Filikomys primaevus Lambe 1902

Invalid names: Mesodma archibaldi Eaton 2002 [synonym]

G. †Krauseia Vianey-Liaud 1986

†Krauseia clemensi Sloan 1981

G. †Mesodma Jepsen 1940

†Mesodma ambigua Jepsen 1940

†Mesodma formosa Marsh 1889

†Mesodma hensleighi Lillegraven 1969

†Mesodma pygmaea Sloan 1987

†Mesodma senecta Fox 1971

†Mesodma thompsoni Clemens 1964

Invalid names: Mesodma garfieldensis Archibald 1982 [synonym]

G. †Mesodmops Tong and Wang 1994

†Mesodmops dawsonae Tong and Wang 1994

†Mesodmops tenuis Missiaen and Smith 2008

G. †Mimetodon Jepsen 1940

†Mimetodon churchilli Jepsen 1940

†Mimetodon krausei Sloan 1981

†Mimetodon silberlingi Simpson 1935

G. †Neoplagiaulax Lemoine 1882

†Neoplagiaulax burgessi Archibald 1982

†Neoplagiaulax donaldorum Scott and Krause 2006

†Neoplagiaulax grangeri Simpson 1935

†Neoplagiaulax hazeni Jepsen 1940

†Neoplagiaulax hunteri Simpson 1936

†Neoplagiaulax jepi Sloan 1987

†Neoplagiaulax kremnus Johnston and Fox 1984

†Neoplagiaulax macintyrei Sloan 1981

†Neoplagiaulax macrotomeus Wilson 1956

†Neoplagiaulax mckennai Sloan 1987

†Neoplagiaulax nanophus Holtzman 1978

†Neoplagiaulax paskapooensis Scott 2005

†Neoplagiaulax serrator Scott 2005

Invalid names: Neoplagiaulax nelsoni Sloan 1987 [nomen nudum]

G. †Nidimys Hunter et al. 2010

†Nidimys occultus Hunter et al. 2010

G. †Parectypodus Jepsen 1930

†Parectypodus armstrongi Johnston and Fox 1984

†Parectypodus corystes Scott 2003

†Parectypodus foxi Storer 1991

†Parectypodus lunatus Krause 1982

†Parectypodus sinclairi Simpson 1935

†Parectypodus sloani Schiebout 1974

†Parectypodus sylviae Rigby, Jr. 1980

Invalid names: Parectypodus pattersoni Sloan 1987 [synonym]

†Parectypodus trovessartianus Cope 1882

†Parectypodus vanvaleni Sloan 1981

G. †Parikimys Wilson et al. 2010

†Parikimys carpenteri Wilson et al. 2010

G. †Xanclomys Rigby, Jr. 1980

†Xanclomys mcgrewi Rigby, Jr. 1980

G. †Xyronomys Rigby, Jr. 1980

†Xyronomys robinsoni Middleton and Dewar 2004

†Xyronomys swainae Rigby, Jr. 1980

Invalid names: Ectypodidae Sloan and Van Valen 1965 [synonym]

Fm. †Ptilodontidae Cope 1887

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G. †Aenigmamys Scott 2021

†Aenigmamys aries Scott 2021

G. †Allacodon Marsh 1889

†Allacodon fortis Marsh 1892

†Allacodon lentus Marsh 1889

†Allacodon pumilus Marsh 1889

G. †Baiotomeus Krause 1987

†Baiotomeus douglassi Simpson 1935

†Baiotomeus lamberti Krause 1987

†Baiotomeus rhothonion Scott 2003

†Baiotomeus russelli Scott et al. 2002

G. †Camptomus Marsh 1889

†Camptomus amplus Marsh 1889

G. †Kimbetohia Simpson 1936

†Kimbetohia campi Simpson 1936

†Kimbetohia mziae Middleton and Dewar 2004

G. †Prochetodon Jepsen 1940

†Prochetodon cavus Jepsen 1940

†Prochetodon foxi Krause 1987

†Prochetodon speirsae Scott 2004

†Prochetodon taxus Krause 1987

G. †Ptilodus Cope 1881

†Ptilodus ferronensis Gazin 1941

†Ptilodus fractus Dorr 1952

†Ptilodus gnomus Scott et al. 2002

†Ptilodus kummae Krause 1977

†Ptilodus mediaevus Cope 1881

Invalid names: Chirox plicatus Cope 1884 [synonym]

†Ptilodus montanus Douglass 1908

Invalid names: Ptilodus admirabilis Hay 1930 [synonym]

†Ptilodus tsosiensis Sloan 1981

†Ptilodus wyomingensis Jepsen 1940

Invalid names: Chirox Cope 1884 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialc

Locomotion:

actively mobilec

Life habit:

arborealsubo

Diet:

omnivoresubo

Comments:

That ptilodontoids were omnivorous is supported by Wall and Krause (1992).subo

Created:

2005-09-06 17:42:19

Modified:

2005-09-06 19:48:59

Source: subo = suborder, c = class, subp = subphylum

References: Carroll 1988, Hopson 1973, Krause 1982, Hendy et al. 2009

Age range: base of the Middle Cenomanian to the top of the Duchesnean or 99.60000 to 37.00000 Ma

Collections (455 total)

Time interval	Ma	Country or state	Original ID and collection number
Oldest occurrences
Late/Upper Albian - Early/Lower Cenomanian	105.3 - 93.5	USA (Idaho)	Cimolodon akersteni (201911)
Early/Lower Cenomanian	99.6 - 93.5	USA (Utah)	Mesodma sp. (14396) Ptilodontoidea indet. (14407)
Middle Cenomanian - Late/Upper Cenomanian	99.6 - 93.5	USA (Utah)	Cimolodontidae indet. (14383 73433) Cimolodontidae indet., Cimolodon electus (14385) Cimolodontidae indet., Mammalia indet. (73432)
Coniacian - Santonian	89.8 - 83.6	USA (Utah)	Cimolodon similis (14389)
Late/Upper Santonian	85.8 - 83.5	Canada (Alberta)	Cimolodon electus, Cimolodon similis (14422 14424 14426) Cimolodon electus, Cimolodon similis, Mesodma senecta (14423) Mesodma sp., Cimolodon electus, Cimolodon similis, Mesodma senecta (14425)
Early/Lower Campanian	83.5 - 70.6	USA (Utah)	Cimolodon similis (14430) Cimolodon similis, Cimolodon wardi, Mesodma minor, Cimolodon nitidus (14421) Mesodma sp., Cimolodon sp., Cimolodon electus, Cimolodon similis, Mesodma formosa (14429)
Judithian	83.5 - 70.6	USA (Utah)	Cimolodon sp. A, Cimolodon sp. B, Cimolodon sp. C, Mesodma hensleighi, Mesodma thompsoni (14467) Mesodma sp., Cimolodon nitidus (14475) Mesodma sp., Cimolodon sp., Cimolodon nitidus, Mesodma formosa, Mesodma hensleighi (14474)
Judithian	83.5 - 70.6	USA (New Mexico)	Cimolodon sp., Cimolodon electus, Mesodma senecta (14464)
Judithian	83.5 - 70.6	USA (Wyoming)	Mesodma sp. (14487) Mesodma sp., Cimolodon sp., Mesodma primaeva (14458) Mesodma sp., Mesodma primaeva (14433)
Judithian	83.5 - 70.6	USA (Texas)	Cimolodon sp., Cimolodon electus, Neoplagiaulacidae indet. (14489) Mesodma sp. (14488)
Youngest occurrences
Time interval	Ma	Country or state	PBDB collection number
Uintan	46.2 - 39.7	USA (Wyoming)	Ectypodus lovei (16513 16514 16517) Neoplagiaulacidae indet. (16630)
Uintan	46.2 - 39.7	USA (Montana)	Ectypodus lovei (222922)
Duchesnean	39.7 - 37.0	USA (Montana)	Ectypodus sp. (16854)
Duchesnean	39.7 - 37.0	USA (Wyoming)	Ectypodus lovei (16884) Ectypodus sp. (16826)
Duchesnean	39.7 - 37.0	Canada (Saskatchewan)	Ectypodus lovei (16845 16846)
Chadronian	37.2 - 33.9	USA (North Dakota)	Ectypodus lovei, Neoplagiaulacidae indet. (16991)
Chadronian	37.2 - 33.9	Canada (Saskatchewan)	Ectypodus lovei (16919)
Chadronian	37.2 - 33.9	USA (Nebraska)	Ectypodus sp. (17014)
Chadronian	37.2 - 33.9	USA (Wyoming)	Ectypodus lovei (16961) Ectypodus sp. (17009)
Middle Chadronian	37.2 - 33.9	Canada (Saskatchewan)	Ectypodus lovei (16928)