Lake Diefenbaker site (Cretaceous to of Canada)

Also known as LD, Saskatchewan Landing Provincial Park

Where: Saskatchewan, Canada (50.7° N, 108.1° W: paleocoordinates 57.2° N, 72.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Dinosaur Park Formation (Belly River Group), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: channel lag; lenticular, tabular, graded sandstone and brown, gray mudstone

• "tidally influenced point bar deposits"
• “Facies 1 consists of inclined centimetre- to millimetre-scale, tabular to lenticular, parallel-laminated and current ripple cross-laminated, light grey to buff very fine-grained sandstone. This alternates with light brown to brownish-grey mudstone and claystone locally with carbonaceous laminae…consistent with the definition of inclined heterolithic stratification. This facies is laterally extensive, is 0.3–4.7 m thick…Evidence of bidirectionality of paleocurrents is present locally, with ripple crests trending northwest and southeast. A fining-upward trend is apparent, with bedding changing gradationally up-section from flaser to wavy, to lenticular. Ironstone and claystone nodules are present in the sandstones. Trace fossils are found throughout the unit and include the ichnogenera Planolites, Palaeophychus, and Teichichnus. Most vertebrate fossils discussed here are present in this facies.”

Size classes: macrofossils, mesofossils

Preservation: trace

Collected by N. Yurchyshyn, T. Tokaryk, D. Taylor, J. Storer, G. Schutte, W. Long, M. Caldwell, H. Larsson in 1975, 1990, 1992, 2002, 2012, 2015

Collection methods: bulk, sieve,

Primary reference: M. M. Gilbert, E. L. Bamforth, L. A. Buatois and R. W. Renaut. 2018. Paleoecology and sedimentology of a vertebrate microfossil assemblage from the easternmost Dinosaur Park Formation (Late Cretaceous, Upper Campanian,) Saskatchewan, Canada: reconstructing diversity in a coastal ecosystem. Palaeogeography, Palaeoclimatology, Palaeoecology 495:227-244 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 229975: authorized by Matthew Carrano, entered by Matthew Carrano on 20.04.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Osteichthyes -
Osteichthyes indet. Huxley 1880 bony fish
 Acipenseriformes - Acipenseridae
Acipenser sp. Linnaeus 1758 sturgeon
Reptilia
 Plesiosauria -
 Plesiosauria - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur
 Ornithischia -
Ornithischia indet. Seeley 1888 ornithischian
 Ornithischia - Ankylosauridae
Ankylosauridae indet. Brown 1908 ankylosaurid
 Ornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Ornithischia - Hypsilophodontidae
Hypsilophodontidae indet. hypsilophodontid
 Theropoda - Dromaeosauridae
Dromaeosaurus albertensis Matthew and Brown 1922 maniraptoran
 Theropoda - Troodontidae
Troodontidae indet. Gilmore 1924 maniraptoran
Aves
 Ornithurae -
Hesperornithiformes indet. Fürbringer 1888 bird
 Hesperornithiformes - Baptornithidae
Baptornis sp. Marsh 1877 bird
RSM P2306
Reptilia
 Theropoda - Tyrannosauridae
cf. Gorgosaurus sp. Lambe 1914 tyrannosaurid
 Crocodylia -
Leidyosuchus sp. Lambe 1907 crocodilian
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
 Testudinata - Baenidae
Baenidae indet. Cope 1882 turtle
 Testudines - Chelydridae
Chelydridae indet. Swainson 1839 turtle
 Testudines - Adocidae
Adocidae indet. Cope 1869 turtle
 Testudines - Pantrionychidae
cf. Aspideretoides sp. Gardner et al. 1995 turtle
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Squamata -
Palaeosaniwa sp. Gilmore 1928 squamates
Mammalia
 Multituberculata - Cimolomyidae
Meniscoessus sp. Cope 1882 multituberculate
Amphibia
 Temnospondyli - Albanerpetontidae
Albanerpeton sp. Estes and Hoffstetter 1976 tetrapod
 Proteida - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961 salamander
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Lisserpeton bairdi Estes 1965 salamander
 Salientia -
Anura indet. Fischer von Waldheim 1813 frog
Actinopteri
 Aspidorhynchiformes - Aspidorhynchidae
 Teleostei -
Teleostei indet. Müller 1846
 Elopiformes -
cf. Ostariostoma sp. Schaeffer 1949
 Elopiformes - Elopidae
cf. Paratarpon sp. Bardack 1970
 Elopiformes - Phyllodontidae
cf. Paralbula sp. Blake 1940
 Aulopiformes - Enchodontidae
Enchodus sp. Agassiz 1835
 Salmoniformes -
cf. Esocoidea indet. Bleeker 1859
 Ellimmichthyiformes -
Horseshoeichthys sp. Newbrey et al. 2010
Diplomystus sp. Cope 1877
 Osteoglossiformes - Osteoglossidae
cf. Cretophareodus sp. Lim 1996 arowana
 Hiodontiformes - Hiodontidae
Chondrichthyes
 Hybodontiformes - Hybodontidae
Meristodonoides montanensis Case 1978 elasmobranch
 Orectolobiformes - Orectolobidae
"Cretorectolobus olsoni" = Cretorectolobus olsoni, "Eucrossorhinus microcuspidatus" = Cretorectolobus olsoni
"Cretorectolobus olsoni" = Cretorectolobus olsoni Case 1978 wobbegong
"Eucrossorhinus microcuspidatus" = Cretorectolobus olsoni Case 1978 wobbegong
 Lamniformes - Anacoracidae
Squalicorax sp. Whitley 1939 crow shark
 Lamniformes - Archaeolamnidae
Archaeolamna kopingensis Davis 1890 mackerel shark
 Lamniformes - Carchariidae
 Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876 guitarfish
 Ichnofossils -
Planolites sp. Nicholson 1873
Teichichnus sp. Seilacher 1955
Palaeophycus sp. Hall 1847