PBDB Collection

Hartless (Cretaceous of the United States)

Also known as UCMP V82022; UCMP V-82022; UWBM C1153

Where: Garfield County, Montana (47.3° N, 107.1° W: paleocoordinates 54.1° N, 80.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Hell Creek Formation, Lancian (70.6 - 66.0 Ma)

• Approximately 41.2 m below the Hell Creek–Tullock formational contact

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Reposited in the UWBM

Primary reference: D. G. DeMar, Jr. 2013. A new fossil salamander (Caudata, Proteidae) from the Upper Cretaceous (Maastrichtian) Hell Creek Formation, Montana, U.S.A. Journal of Vertebrate Paleontology 33(3):588-598 [P. Mannion/P. Mannion/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 144499: authorized by Philip Mannion, entered by Philip Mannion on 08.05.2013, edited by Roger Benson, Patricia Holroyd and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Amphibia
Salientia -	Theatonius lancensis² Theatonius lancensis² Fox 1976 frog
Caudata - Urodela	Habrosaurus prodilatus², Habrosaurus dilatus², Paranecturus garbanii n. gen. n. sp., Scapherpetontidae "indet. 1"², Scapherpetontidae "indet. 2"², Piceoerpeton naylori², Lisserpeton bairdi², Scapherpeton tectum² Habrosaurus prodilatus² Gardner 2003 siren Habrosaurus dilatus² Gilmore 1928 siren Paranecturus garbanii n. gen. n. sp. DeMar 2013 mudpuppy Holotype: UWBM93370 (Figs. 2, 3), incomplete atlas missing neural arch roof, crest, and spine, anterior portion of odontoid process, and portions of the anterior and posterior cotylar rims; plus MOR V99230, V99369 Scapherpetontidae "indet. 1"² Auffenberg and Goin 1959 salamander "gen. et sp. nov. 1" Scapherpetontidae "indet. 2"² Auffenberg and Goin 1959 salamander "gen. et sp. nov. 2" Piceoerpeton naylori² Gardner 2012 salamander Lisserpeton bairdi² Estes 1965 salamander Scapherpeton tectum² Cope 1876 salamander
Proteida - Batrachosauroididae	Opisthotriton kayi², Prodesmodon copei² Opisthotriton kayi² Auffenberg 1961 salamander Prodesmodon copei² Estes 1964 salamander
Temnospondyli - Albanerpetontidae	Albanerpeton galaktion², "Albanerpeton nexuosum" = Albanerpeton nexuosus² Albanerpeton galaktion² Fox and Naylor 1982 tetrapod "Albanerpeton nexuosum" = Albanerpeton nexuosus² Estes 1981 tetrapod
Reptilia
Testudines - Pantrionychidae	"Derrisemys sterea" = Hutchemys sterea³ "Derrisemys sterea" = Hutchemys sterea³ Hutchison 2009 turtle
Actinopteri
Teleostei -	Teleostei "indet. U-4"¹, Osteoglossomorpha indet.¹ Teleostei "indet. U-4"¹ Müller 1846 UWBM 98189, abdominal centra; UWBM 106484, one abdominal centrum Osteoglossomorpha indet.¹ Greenwood et al. 1966 = Coriops/Lopadichthys; UWBM 98115, centra of small size; UWBM 106483, centra of small size; UWBM 106491, centra of small size
Osteoglossiformes -	? Wilsonichthys sp.¹, Wilsonichthys aridinsulensis¹ ? Wilsonichthys sp.¹ Murray et al. 2016 UWBM 106485, centra type BvE; UWBM 98094, centrum type BvA Wilsonichthys aridinsulensis¹ Murray et al. 2016
Hiodontiformes - Hiodontidae	Hiodontidae "indet. small morph"¹ Hiodontidae "indet. small morph"¹ UWBM 98060, centra of small size
Esociformes - Esocidae	Estesesox sp.¹ Estesesox sp.¹ Wilson et al. 1992 UWBM 98177, centrum type NvC; UWBM 106582, centrum types NvC and NvE; UWBM 98107, centrum type NvD; UWBM 98158, centrum type NvE
Acanthomorphata -	"Acanthomorpha "indet. HC-1"" = Acanthomorphata¹, "Acanthomorpha "indet. HC-2"" = Acanthomorphata¹, "Acanthomorpha "indet. HC-4"" = Acanthomorphata¹, "Acanthomorpha "indet. HC-6"" = Acanthomorphata¹ "Acanthomorpha "indet. HC-1"" = Acanthomorphata¹ Rosen 1973 UWBM 98195, centra "Acanthomorpha "indet. HC-2"" = Acanthomorphata¹ Rosen 1973 UWBM 98154, abdominal centra; UWBM 106490, one abdominal centrum "Acanthomorpha "indet. HC-4"" = Acanthomorphata¹ Rosen 1973 UWBM 98131, abdominal centra "Acanthomorpha "indet. HC-6"" = Acanthomorphata¹ Rosen 1973 UWBM 98182, abdominal centra
Acanthomorphata - Sciaenidae	Platacodon nanus¹ Platacodon nanus¹ Marsh 1889 UWBM 100991, tooth
Ostariophysi -	"Otophysi "indet. U-3/BvD"" = Otophysa¹ "Otophysi "indet. U-3/BvD"" = Otophysa¹ UWBM 98187, anterior Weberian centrum (type U3); UWBM 106486, (type U3); UWBM 98121, abdominal centra (centrum type BvD); UWBM 106487, an abdominal centrum (centrum type BvD)

¹Brinkman et al. 2021; ²Gardner and DeMar 2013; ³Hutchison 2009