Wannagan Creek Quarry (Paleocene of the United States)

Where: Billings County, North Dakota (47.0° N, 103.7° W: paleocoordinates 52.0° N, 81.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Bullion Creek (Tongue River) Formation, Tiffanian (61.7 - 56.8 Ma)

Environment/lithology: mire or swamp; shale

• shale represents "a paludal environment" or "a swamp forest... the water had an estimated depth of 2 or 3 m" (Erickson 1982)
• "lignitic silt and clay"; fossiliferous lower level is "a lignitic shale" (Erickson 1982)

Size class: macrofossils

Collected by Palaeontology Department of The Science Museum of Minnesota

Primary reference: B. R. Erickson. 1991. Flora and Fauna of the Wannagan Creek Quarry: Late Paleocene of North America. Scientific Publications of the Science Museum of Minnesota 7(3):1-19 [J. Alroy/J. Alroy/P. Mannion]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 15000: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jered Karr and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Odonata - Gomphaeschnidae
Gomphaeschna schrankii n. sp.5 Lewis 1988 true dragonfly
SMM
Osteichthyes
 Salientia -
 Caudata - Urodela
Scapherpeton sp. Cope 1876 salamander
Piceoerpeton willwoodense6 Meszoely 1967 salamander
trunk vertebrae SMM P76.28.237 and P76.28.238
Reptilia
 Testudines - Trionychidae
Trionychidae indet.2 Gray 1825 softshell turtle
 Testudines - Baenidae
Baenidae indet. Cope 1882 turtle
 Testudines - Panchelydridae
Protochelydra zangerli n. gen. n. sp.
Protochelydra zangerli n. gen. n. sp. Erickson 1973 turtle
SMM P72.34.20 - holotype
Aves
 Charadriiformes - Dakotornithidae
Dakotornis cooperi n. gen. n. sp.3
Dakotornis cooperi n. gen. n. sp.3 Erickson 1975 shorebird
SMM P74.24.106 - holotype (complete right humerus)
Reptilia
 Crocodylia -
"Leidyosuchus formidabilis n. sp." = Borealosuchus formidabilis4
"Leidyosuchus formidabilis n. sp." = Borealosuchus formidabilis4 Erickson 1976 crocodilian
SMM P71.16.28 Complete skull
 Crocodylia - Alligatoridae
Wannaganosuchus brachymanus n. gen. n. sp.4 Erickson 1982 crocodilian
 Squamata - Varanidae
Varanidae indet. Hardwicke and Gray 1824 monitor lizard
 Squamata - Amphisbaenidae
 Choristodera -
Champsosaurus sp.4 Cope 1876 choristodere
Champsosaurus gigas Erickson 1972 choristodere
Mammalia
 Primates - Plesiadapidae
Plesiadapis sp. Gervais 1877 primate
Plesiadapis cf. fodinatus Jepsen 1930 primate
 Primates - Paromomyidae
Phenacolemurinae indet.1 Simpson 1955 primate
Ignacius sp. Matthew and Granger 1921 primate
 Cimolesta - Palaeoryctidae
cf. Pararyctes sp. Van Valen 1966 eutherian
cf. Palaeoryctes sp. Matthew 1913 eutherian
 Cimolesta - Pantolestidae
Propalaeosinopa sp. Simpson 1927 eutherian
two forms, one said to be new
 Lipotyphla - Erinaceidae
Entomolestes sp. Matthew 1909 hedgehog
 Tribosphenida - Nyctitheriidae
Leptacodon sp. Matthew and Granger 1921 placental
"cf. Leptacodon" is also listed, but as a lipotyphlan instead of a proteuthere, indicating that both the true Leptacodon and the "L." packi genus are present
 Ferae - Viverravidae
Bryanictis cf. microlestes1 Simpson 1935 placental
 Tribosphenida - Arctocyonidae
Thryptacodon sp. Matthew and Granger 1915 condylarth
Thryptacodon cf. australis Simpson 1935 condylarth
 Ungulata - Phenacodontidae
Ectocion sp. Cope 1882 condylarth
Phenacodus sp. Cope 1873 condylarth
 Insectivora - Apatemyidae
Labidolemur soricoides Matthew and Granger 1921 insectivoran
 Theriiformes - Peradectidae
Peradectes sp. Matthew and Granger 1921 metatherian
 Multituberculata - Neoplagiaulacidae
Neoplagiaulax cf. hunteri Simpson 1936 multituberculate
Neoplagiaulax mckennai Sloan 1987 multituberculate
Neoplagiaulax hazeni Jepsen 1940 multituberculate
 Multituberculata - Ptilodontidae
Ptilodus sp. Cope 1881 multituberculate
Ptilodus wyomingensis Jepsen 1940 multituberculate
Pinopsida
 Pinales - Cupressaceae
Cupressaceae indet.4 Martynov 1820
"taxodid" or "cypress" trees
Pteridopsida
 Salviniales - Azollaceae
Azolla sp.4 Lamark 1783
Magnoliopsida
 Nymphaeales - Nymphaeaceae
Nelumbium sp.4 Jussieu