PBDB Collection

Mill Creek Site (Sand Layer) (Pleistocene of the United States)

Where: St. Clair County, Michigan (43.1° N, 82.6° W: paleocoordinates 43.0° N, 82.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Rancholabrean (0.3 - 0.0 Ma)

• "Middle Wisconsinan or greater" based on fauna, plus radiocarbon, thermoluminescene, and amino acid racemization dates

•from a single "5-8 cm thick" fossiliferous layer

• bed-level stratigraphic resolution

Environment/lithology: fluvial; fine-grained, medium, gray, silty, carbonaceous sandstone

• "perennial aquatic habitat" and possibly "riverine"

• "gray silty fine to medium sand... with brownish organic streaks and scattered bits of charcoal"

Size classes: mesofossils, microfossils

Collection methods: bulk, sieve,

Primary reference: P. F. Karrow, K. L. Seymour, B. B. Miller and J.E. Mirecki. 1997. Pre-Late Wisconsinan Pleistocene biota from southeastern Michigan, U.S.A. Palaeogeography, Palaeoclimatology, Palaeoecology 133(1-2):81-101 [J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 70130: authorized by John Alroy, entered by John Alroy on 18.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

unclassified
-	Bakerilymnea dalli, Cionella lubrica, Columella sp., Probythinella lacustris, Tubuliforae indet. Bakerilymnea dalli Cionella lubrica Columella sp. Probythinella lacustris Tubuliforae indet.
Polypodiopsida
Polypodiales - Polypodiidae	Pteridium sp., Dryopteris sp. Pteridium sp. Gleditsch and Scopoli 1760 Dryopteris sp. Adanson 1763 "Dryopteris type"
Sphagnum
- Sphagnaceae	Sphagnum sp. Sphagnum sp. Linnaeus 1753 peat moss
Angiospermae
Fagales - Betulaceae	Betula sp. Betula sp. Linnaeus 1753 birch
Malpighiales - Salicaceae	Salix sp. Salix sp. Linnaeus 1753 willow
Malvales - Tiliaceae	Tilia sp. Tilia sp. Linnaeus 1753 linden
Pinopsida
Pinales - Pinaceae	Picea sp., Abies sp., Pinus sp. Picea sp. Dietrich 1824 spruce Abies sp. Miller 1754 fir Pinus sp. Linnaeus 1753 pine
Actinopteri
Esociformes - Esocidae	Esox sp. Esox sp. Linnaeus 1758 pike
Perciformes - Gasterosteidae	Pungitius cf. pungitius Pungitius cf. pungitius Linnaeus 1758 ninespine stickleback
Acanthomorphata - Sciaenidae	Aplodinotus cf. grunniens Aplodinotus cf. grunniens Rafinesque 1819 freshwater drum
Cypriniformes - Catostomidae	Catostomidae indet. Catostomidae indet. carp-like fish
Cypriniformes - Cyprinidae	Cyprinidae indet. Cyprinidae indet. Rafinesque 1815 carp-like fish
Mammalia
Rodentia - Zapodidae	Zapus cf. hudsonius Zapus cf. hudsonius Zimmermann 1780 meadow jumping mouse
Rodentia - Cricetidae	Peromyscus sp., Microtus xanthognathus, Microtus pennsylvanicus, "Clethrionomys sp." = Myodes, Lemmus cf. trimucronatus, Dicrostonyx sp., "Synaptomys borealis" = Synaptomys (Mictomys) borealis Peromyscus sp. Gloger 1841 deer mouse Microtus xanthognathus Leach 1815 taiga vole Microtus pennsylvanicus Ord 1815 meadow vole "Clethrionomys sp." = Myodes Pallas 1811 vole Lemmus cf. trimucronatus Richardson 1825 brown lemming Dicrostonyx sp. Gloger 1841 lemming "Synaptomys borealis" = Synaptomys (Mictomys) borealis Richardson 1828 northern bog lemming
Lagomorpha - Leporidae	Leporidae indet. Leporidae indet. Fischer de Waldheim 1817 rabbit
Theriamorpha - Soricidae	"Sorex hoyi" = Microsorex hoyi "Sorex hoyi" = Microsorex hoyi Baird 1858 American pygmy shrew
Carnivora - Mustelidae	Mustela erminea Mustela erminea Linnaeus 1758 stoat
Gastropoda
Cycloneritida - Helicinidae	Hendersonia occulta Hendersonia occulta snail
Pulmonata - Discidae	Discus cronkhitei Discus cronkhitei disk snail
Architaenioglossa - Viviparidae	Lioplax cf. suculosa Lioplax cf. suculosa snail
Sorbeoconcha - Amnicolidae	Amnicola integra, Amnicola limosa Amnicola integra snail Amnicola limosa snail
Heterostropha - Valvatidae	Valvata sincera, Valvata tricarinata Valvata sincera snail Valvata tricarinata snail
Heterostropha - Lymnaeidae	Stagnicola elodes, Fossaria sp., Fossaria decampi Stagnicola elodes snail Fossaria sp. Westerlund 1885 snail Fossaria decampi snail
Heterostropha - Planorbidae	Gyraulus deflectus, Gyraulus parvus, Armiger crista, Ferrissia fragilis, Helisoma sp. Gyraulus deflectus snail Gyraulus parvus snail Armiger crista snail Ferrissia fragilis snail Helisoma sp. Swainson 1940 snail
Stylommatophora - Zonitidae	Zonitoides aboreas Zonitoides aboreas true glass snail
Stylommatophora - Valloniidae	Vallonia costata Vallonia costata slug
Stylommatophora - Vertiginidae	Vertigo alpestris, Vertigo elatior, Vertigo cf. gouldi, Vertigo hannai, Vertigo modesta, Vertigo morsei, Vertigo ovata, Vertigo paradoxa Vertigo alpestris slug subspecies oughtoni Vertigo elatior slug Vertigo cf. gouldi slug Vertigo hannai slug Vertigo modesta slug Vertigo morsei slug Vertigo ovata slug Vertigo paradoxa slug
Heterostropha - Carychiidae	Carychium exiguum Carychium exiguum snail
Bivalvia
Cardiida - Sphaeriidae	Sphaerium sp., Sphaerium striatinum, Pisidium compressum, Pisidium dubium, Pisidium idahoense, Pisidium milium, Pisidium variabile, Pisidium ventricosum, Pisidium nitidum Sphaerium sp. Scopoli 1777 fingernail clam Sphaerium striatinum fingernail clam Pisidium compressum pea clam Pisidium dubium pea clam Pisidium idahoense pea clam Pisidium milium pea clam Pisidium variabile pea clam Pisidium ventricosum pea clam Pisidium nitidum Jenyns 1832 pea clam
Ostracoda
Podocopida - Candonidae	Candona paraohioensis Candona paraohioensis ostracod