PBDB Collection

Careless Creek Quarry (CCQ): Middle Campanian, Montana
collected by E. Cole & P. Dodson 1981-1986

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Reptilia - Ankylosauridae

	Ankylosauridae indet. Brown 1908	Dodson 1986

	Euoplocephalus sp. Lambe 1910	Fiorillo 1989
Reptilia - Ceratopsidae

	Centrosaurus sp. Lambe 1905	Fiorillo 1989
	"Centrosaurus/Monoclonius"

	Ceratopsidae indet. Marsh 1888		1 individual
	"new genus"; ANSP 15800 (7 measurements)
	= Avaceratops lammersi n. gen., n. sp. Dodson 1986	Dodson 1986
Reptilia

	Stegoceras sp. Lambe 1902	Fiorillo 1989
Reptilia - Hypsilophodontidae

	Hypsilophodontidae indet. Dollo 1882	Dodson 1986
Reptilia - Hadrosauridae

	Lambeosaurinae indet. Parks 1923	Dodson 1986
	= Lambeosauridae indet. Parks 1923	Carpenter and Alf 1994
	babies
	= Hadrosauridae indet. Cope 1869	Prieto-Márquez and Gutarra 2016

	Hadrosauridae indet. Cope 1869	Fiorillo 1987	15 specimens
	ANSP 15979, 15986, 16242, 18325, 17671, 17689, 18326, 17690, 18322, 17728, 16957–16961

	Corythosaurus sp. Brown 1914	Fiorillo 1989	1 specimen
	ANSP 17727
	= Lambeosaurinae indet. Parks 1923	Prieto-Márquez and Gutarra 2016

	Parasaurolophus sp. Parks 1922	Fiorillo 1989
	= Lambeosaurinae indet. Parks 1923	Dodson 1986
	babies

	Kritosaurini indet. Lapparent and Lavocat 1955	Prieto-Márquez and Gutarra 2016	2 specimens
	ANSP 17730, 17731

	Hadrosaurinae indet. Lambe 1918	Dodson 1986	11 specimens
	ANSP 15981, 17692, 18320, 18323, 18324, 18328, 17723, 17723–17726, 17729; ref 1487 also includes reference to "Hadrosaurus/Kritosaurus"
	= ? Gryposaurus sp. Lambe 1914	Prieto-Márquez and Gutarra 2016
Reptilia - Theropoda

	Theropoda informal indet. A Marsh 1881	Fiorillo 1997
	"A"
Reptilia - Ornithomimidae

	Ornithomimidae indet. Marsh 1890	Dodson 1986
Reptilia - Troodontidae

	Troodon formosus Leidy 1856	Fiorillo and Currie 1994
Reptilia - Dromaeosauridae

	Saurornitholestes langstoni Sues 1978	Fiorillo and Currie 1994
	(2 measurements)

	Dromaeosaurus albertensis Matthew and Brown 1922	Fiorillo and Currie 1994

	Richardoestesia gilmorei Currie et al. 1990	Fiorillo and Currie 1994
Reptilia - Caenagnathidae

	Chirostenotes informal sp. A Gilmore 1924	Fiorillo 1989

	Chirostenotes informal sp. B Gilmore 1924	Fiorillo 1989
Reptilia - Tyrannosauridae

	cf. Tyrannosauridae indet. Osborn 1906	Fiorillo 1989
Reptilia - Pterosauria

	Pterosauria indet. Kaup 1834	Fiorillo 1989
Reptilia - Crocodylia

	Leidyosuchus sp. Lambe 1907	Fiorillo 1989
	= Crocodylia indet. Owen 1842	Alroy 2007
Reptilia

	Brachychampsa sp. Gilmore 1911	Fiorillo 1989

	cf. Doratodon sp. Seeley 1881	Fiorillo 1989

	Champsosaurus sp. Cope 1876	Fiorillo 1989
Reptilia - Testudines - Trionychidae

	Aspideretes sp. Hay 1904	Fiorillo 1997
	= Trionychinae indet. Gray 1825	Alroy 2007
Reptilia - Baenidae

	Baenidae indet. Cope 1882	Dodson 1986

	Neurankylus sp. Lambe 1902	Fiorillo 1997

	Boremys sp. Lambe 1906	Fiorillo 1997
Mammalia - Multituberculata - Neoplagiaulacidae

	Mesodma sp. Jepsen 1940	Fiorillo 1989
Acipenseriformes - Acipenseridae

	Acipenser sp. Linnaeus 1758	Fiorillo 1989
Actinopteri - Elopiformes - Phyllodontidae

	Paralbula sp. Blake 1940	Fiorillo 1987
Actinopteri - Aspidorhynchiformes - Aspidorhynchidae

	Belonostomus sp. Agassiz 1834	Fiorillo 1989
Actinopteri - Lepisosteiformes - Lepisosteidae

	Lepisosteus sp. Agassiz 1843	Fiorillo 1989
Chondrichthyes - Rajiformes - Rhinobatidae

	Myledaphus sp. Cope 1876	Fiorillo 1997
see common names

Geography

Country:	United States	State/province:	Montana	County:	Wheatland
Coordinates:	46.5° North, 109.4° West (view map)
Paleocoordinates:	53.6° North, 76.3° West
Basis of coordinate:	based on political unit
Geographic resolution:	small collection

Time

Period:	Cretaceous	Epoch:	Late/Upper Cretaceous
Stage:	Campanian	10 m.y. bin:	Cretaceous 7
*Epoch:	Senonian
*International age/stage:	Late/Upper Campanian
Key time interval:	Middle Campanian
Age range of interval:	83.60000 - 72.10000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Geological group:	Montana	Formation:	Judith River	Member:	McClelland Ferry
Local section:	JRWGV	Local bed:	1
Local order:	bottom to top
Stratigraphic resolution:	bed
Stratigraphy comments: in the lower 1/3rd of the local section according to Penkalski and Dodson 1999 Rogers et al. 2016: This mid-Judith discontinuity defines the boundary between the new McClelland Ferry and overlying Coal Ridge Members of the Judith River Formation. The shallow marine sandstones that form the backstepping sequences represent the leading edge of the Bearpaw transgression in this region and are formalized as the new Woodhawk Member of the Judith River Formation in a third reference section. New 40Ar/39Ar ages indicate (1) that the mid-Judith discontinuity formed ∼76.2 Ma,

Lithology and environment

Primary lithology:	sandstone
Includes fossils?	Y
Lithology description: "gray, fine to coarse-grained, cross-bedded sandstone about 3 m thick, containing clay-pebble conglomerate lenses and fossil plants" (Penkalski and Dodson 1999)
Environment:	"channel"
Geology comments: "a channel deposit... bones accumulated in a logjam"

Taphonomy

Modes of preservation:	body
Degree of concentration:	-multiple events
Size of fossils:	macrofossils,mesofossils
Associated major elements:	some
Disassociated major elements:	many
Disassociated minor elements:	many
Size sorting:	medium
Temporal resolution:	time-averaged
Spatial resolution:	parautochthonous

Collection methods and comments

Collection methods:	bulk,selective quarrying,surface (float),sieve,field collection
Reason for describing collection:	taphonomic analysis
Collectors:	E. Cole & P. Dodson	Collection dates:	1981-1986
Taxonomic list comments:i.d. repeated by Fiorillo 1997

Metadata

Database number:	14437
Authorizer:	J. Alroy, M. Carrano	Enterer:	J. Alroy, M. Carrano
Modifier:	G. Varnham	Research group:	taphonomy,vertebrate
Created:	1998-09-21 00:00:00	Last modified:	2022-02-02 03:59:59
Access level:	the public	Released:	1998-09-21 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

25474.

ETE

P. Dodson. 1984. Small Judithian ceratopsids, Montana and Alberta. In W.-E. Reif & F. Westphal (eds.), Third Symposium on Mesozoic Terrestrial Ecosystems, Short Papers. Attempto Verlag, Tübingen 73-78 [M. Carrano/M. Carrano]

Secondary references:

19636		J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy]
14221	ETE	K. Carpenter and K. Alf. 1994. Global distribution of dinosaur eggs, nests, and babies. In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, Cambridge University Press, Cambridge 13-30 [M. Carrano/M. Carrano/M. Carrano]
25472	ETE	P. Dodson. 1986. Avaceratops lammersi: a new ceratopsid from the Judith River Formation of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 138(2):305-317 [M. Carrano/M. Carrano]
13593	ETE	A. R. Fiorillo. 1987. Significance of juvenile dinosaurs from Careless Creek Quarry (Judith River Formation), Wheatland County, Montana. P. J. Currie & E. H. Koster (eds.), Fourth Symposium on Mesozoic Terrestrial Ecosystems, Tyrrell Museum of Paleontology, Drumheller, Alberta 88-95 [M. Carrano/M. Carrano/M. Carrano]
1487		A. R. Fiorillo. 1989. The vertebrate fauna from the Judith River Formation (Late Cretaceous) of Wheatland and Golden Valley counties, Montana. Mosasaur 4:127-142 [J. Alroy/J. Alroy/H. Street]
14261	ETE	A. R. Fiorillo. 1989. Taphonomy of Careless Creek Quarry (Judith River Formation: Upper Cretaceous), Wheatland County, Montana. Journal of Vertebrate Paleontology 9(3, suppl.):20A [M. Carrano/M. Carrano/M. Carrano]
1488		A. R. Fiorillo. 1997. Stratigraphic distribution of fossil vertebrates in the Judith River Formation (Upper Cretaceous) of Wheatland and Golden Valley counties, south-central Montana. Northwest Geology 27:1-12 [J. Alroy/J. Alroy/M. Carrano]
13752	ETE	A. R. Fiorillo and P. J. Currie. 1994. Theropod teeth from the Judith River Formation (Upper Cretaceous) of south-central Montana. Journal of Vertebrate Paleontology 14(1):74-80 [M. Carrano/M. Carrano/M. Carrano]
59188		J. C. Mallon, C. J. Ott, P. L. Larson, E. M. Iuliano, and D. C. Evans. 2016. Spiclypeus shipporum gen. et sp. nov., a boldly audacious new chasmosaurine ceratopsid (Dinosauria: Ornithischia) from the Judith River Formation (Upper Cretaceous: Campanian) of Montana, USA. PLoS ONE 11(5):e0154218:1-40 [M. Carrano/M. Carrano]
14712	ETE	P. Penkalski. 1993. The morphology of Avaceratops lammersi, a primitive ceratopsid from the Campanian of Montana. Journal of Vertebrate Paleontology 13(3, suppl.):52A [M. Carrano/M. Carrano/M. Uhen]
6846		P. Penkalski and P. Dodson. 1999. The morphology and systematics of Avaceratops, a primitive horned dinosaur from the Judith River Formation (Late Campanian) of Montana, with the description of a second skull. Journal of Vertebrate Paleontology 19(4):692-711 [J. Alroy/J. Alroy/M. Carrano]
59434		A. Prieto-Márquez and S. Gutarra. 2016. The ‘duck-billed’ dinosaurs of Careless Creek (Upper Cretaceous of Montana, USA), with comments on hadrosaurid ontogeny. Journal of Paleontology 90(1):133-146 [M. Carrano/M. Carrano]
66718		M. J. Ryan, R. Holmes, J. Mallon, M. Loewen, and D. C. Evans. 2017. A basal ceratopsid (Centrosaurinae: Nasutoceratopsini) from the Oldman Formation (Campanian) of Alberta, Canada. Canadian Journal of Earth Sciences 54:1-14 [G. Lloyd/G. Lloyd/M. Carrano]
70922		R. Takasaki, A. R. Fiorillo, Y. Kobayashi, R. S. Tykoski, and P. J. McCarthy. 2019. The first definite lambeosaurine bone From the Liscomb Bonebed of the Upper Cretaceous Prince Creek Formation, Alaska, United States. Scientific Reports 9(1):5384:1-11 [M. Carrano/M. Carrano]