PK Microsite (Cretaceous of Canada)

Also known as Phil's Knob vertebrate microfossil bonebed

Where: Alberta, Canada (49.6° N, 111.0° W: paleocoordinates 56.9° N, 76.2° W)

• coordinate estimated from map

When: Foremost Formation, Middle Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: fluvial; siltstone

• "The interval that in which the PK is located consists of crossbedded fine sandstone, with the specific microvertebrate producing horizon consisting of sandy siltstone, thought to represent a graded splay/paleochannel deposit, and is located stratigraphically approximately 6m below the lowermost coal referable to the TCZ." TCZ=Taber Coal Zone

Size classes: macrofossils, mesofossils, microfossils

Collected in 2009-2013, 2015; reposited in the TMP

Collection methods: bulk, sieve,

Primary reference: T. M. Cullen, F. Fanti, C. Capobianco, M. J. Ryan, and D. C. Evans. 2016. A vertebrate microsite from a marine-terrestrial transition in the Foremost Formation (Campanian) of Alberta, Canada, and the use of faunal assemblage data as a paleoenvironmental indicator. Palaeogeography, Palaeoclimatology, Palaeoecology 444:101-114 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 181024: authorized by Patricia Holroyd, entered by Patricia Holroyd on 13.08.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Selachimorpha -
Selachimorpha indet. Nelson 1984 elasmobranch
 Hybodontiformes - Hybodontidae
Hybodus sp. Agassiz 1834 elasmobranch
 Rajiformes -
Pseudomyledaphus sp. Kirkland et al. 2013 guitarfish
 Lamniformes - Odontaspididae
Odontaspididae indet. Müller and Henle 1839 sand tiger shark
 Lamniformes - Archaeolamnidae
Archaeolamna sp. Siverson 1992 mackerel shark
 Chimaeriformes - Callorhynchidae
Elasmodus sp. Egerton plownose chimaera
Amphibia
 Salientia -
Anura indet. Fischer von Waldheim 1813 frog
ilium
 Caudata - Urodela
Scapherpeton sp. Cope 1876 salamander
Reptilia
 Testudinata - Helochelydridae
Naomichelys sp. Hay 1908 turtle
 Testudinata - Baenidae
Baenidae indet. Cope 1882 turtle
 Testudines -
Testudines indet. Batsch 1788 turtle
 Testudines - Chelydridae
Chelydridae indet. Swainson 1839 turtle
 Testudines - Adocidae
Adocus sp. Cope 1868 turtle
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Testudines - Nanhsiungchelyidae
Basilemys sp. Hay 1902 turtle
 Squamata -
Squamata indet. squamates
 Squamata - Mosasauridae
Mosasauridae indet. Gervais 1852 mosasaur
 Loricata -
Eusuchia indet. crocodilian
 Ornithischia -
 Ornithischia - Nodosauridae
Nodosauridae indet. Marsh 1890 ankylosaur
 Ornithischia - Ankylosauridae
Ankylosauridae indet. Brown 1908 ankylosaurid
 Ornithischia - Pachycephalosauridae
Pachycephalosauridae indet. Sternberg 1945 ornithischian
 Ornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Ornithischia - Hadrosauridae
Hadrosauridae indet. Cope 1869 hadrosaurid
 Theropoda - Dromaeosauridae
Dromaeosauridae indet. Colbert and Russell 1969 maniraptoran
 Theropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere
Actinopteri
 Holostei -
Holostei indet.
Holostean B
 Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843 gar
 Ellimmichthyiformes -
Horseshoeichthys sp. Newbrey et al. 2010