"Dakota" site, Sonsalia Ranch (Cretaceous of the United States)

Also known as Marmarth

Where: Slope County, North Dakota (46.3° N, 103.9° W: paleocoordinates 52.6° N, 76.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: coarse channel fill; sandstone

• "the lateral accretion of a large point-bar"

Size classes: macrofossils, microfossils

Preservation: soft parts

Collected by T. Lyson in 1999–2006

Collection methods: bulk, quarrying, surface (in situ), chemical, mechanical, hydrochloric, hydroflouric,

Primary reference: J. W. Hoganson. 2008. Dakota: a mummified dinosaur. North Dakota Department of Mineral Resources Newsletter 35(2):1-3 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 84455: authorized by Matthew Carrano, entered by Matthew Carrano on 20.10.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Piceapollis sp., Kurtzipites circularis, Kurtzipites trispissatus, Leptopecopites pocockii, Simplicepollis rallus, Striatellipollis striatellus, Tschudypollis sp., Ulmipollenites krempii, Schizophacus sp., Schizophacus laevigatus
 Anthophyta -
Aquilapollenites attenuatus, Aquilapollenites catenireticulatus, Aquilapollenites collaris, Aquilapollenites conatus, Aquilapollenites reductus, Aquilapollenites senonicus, Aquilapollenites quadrilobus
Equisetopsida
 Pinidae - Pinidae
Classopollis sp.
Classopollis sp. Pflug 1953
"spp."
Cerebropollenites
  -
Cerebropollenites macroverrucosus
Alisporites
  -
Alisporites sp., Alisporites cf. thomasii
Alisporites sp. Daugherty 1941
"spp."
Pinopsida
 Pinales - Pinaceae
Pinuspollenites sp., Pinuspollenites labdacus
 Coniferales -
Taxodiaceaepollenites hiatus
 Coniferales - Podocarpaceae
Podocarpidites sp.
Podocarpidites sp. Cookson 1947 podocarp
"spp."
Angiospermae
 Caryophyllales - Chenopodiaceae
Chenopodipollis sp.
Chenopodipollis sp. Krutzsch 1966
 Gunnerales -
Tricolpites sp., Tricolpites microreticulatus
Tricolpites sp. Couper 1953
"spp."
Tricolpites microreticulatus Belsky et al. 1965
 Proteales - Proteaceae
Triporopollenites sp.
Triporopollenites sp. Pflug and Thomson 1953
"spp."
Dicotyledoneae
  -
Triorites minor
Triorites minor Couper 1953
 Ericales - Ericaceae
Ericipites sp.
Ericipites sp. Wodehouse 1933 heather
Angiospermae
 Fagales - Juglandaceae
Momipites inaequalis
Momipites inaequalis Anderson 1960
Polycingulatisporites
  -
Polycingulatisporites sp.
Polycingulatisporites sp. Simoncsics and Kedves 1961
Polypodiopsida
  - Polypodiaceae
Laevigatosporites ovatus, Laevigatosporites major
Laevigatosporites ovatus Wilson and Webster 1946
Laevigatosporites major Krutzsch 1959
 Salviniales - Polypodiidae
Azolla cretacea, Azolla sp.
Azolla sp. Lamarck 1783
 Schizaeales - Polypodiidae
Cicatricosisporites sp.
Cicatricosisporites sp. Potonie and Gelletich 1933
"spp."
  - Blechnaceae
Leptolepidites tenuis
  - Gleicheniaceae
Gleicheniidites sp.
Gleicheniidites sp. Dettmann 1963
"spp."
Pteridopsida
  -
Deltoidospora sp., Cyathidites diaphana, Cyathidites australis, Cyathidites minor, Reticuloidosporites pseudomurii
Deltoidospora sp. Miner 1935
Cyathidites australis Couper 1953
Cyathidites minor Couper 1953
Bryopsida
  -
Stereisporites sp.
Stereisporites sp. Pflug 1953
"spp."
Ginkgoopsida
 Ephedrales -
Ephedripites multipartitus
 Caytoniales -
Vitreisporites sp.
Vitreisporites sp. Leschik 1955
Cycadopites
  -
Cycadopites follicularis, Cycadopites granulatus
Cycadopites follicularis Wilson and Webster 1946
Cycadopites granulatus de Jersey 1964
 Dinoflagellata -
Dinoflagellata indet.
Chlorophyceae
  -
Pediastrum sp.
Pediastrum sp. Meyen 1829
Reptilia
 Ornithischia - Hadrosauridae
Edmontosaurus annectens
Edmontosaurus annectens Marsh 1892 hadrosaurine
"Dakota", mummified skeleton, MRF-03
Chomotriletes
  -
Chomotriletes fragilis