Subeng Unit 1 (Cretaceous to of China)

Where: Nei Mongol, China (43.5° N, 111.7° E: paleocoordinates 42.7° N, 100.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Iren Dabasu Formation, Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• fossils from a "0.05-m thick" horizon

• bed-level stratigraphic resolution

Environment/lithology: wet floodplain; black claystone

• "This layer is interpreted as a histosol indicative of wetland conditions"
• "black, organic-rich clay"

Size class: microfossils

Primary reference: J. Van Itterbeeck, P. Missiaen, A. Folie, V. S. Markevich, D. Van Damme, D.-Y. Guo, and T. Smith. 2007. Woodland in a fluvio-lacustrine environment on the dry Mongolian Plateau during the late Paleocene: Evidence from the mammal bearing Subeng section (Inner Mongolia, P.R. China). Palaeogeography, Palaeoclimatology, Palaeoecology 243(1-2):55-78 [J. Alroy/J. Alroy/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 71073: authorized by John Alroy, entered by John Alroy on 17.04.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
 Anthophyta -
Lycopodiopsida
 Lycopodiales - Lycopodiaceae
Lycopodiumsporites sp. Delcourt and Sprumont 1955 clubmoss
 Selaginellales - Selaginellaceae
Selaginella sp. Beauvois 1804 spikemoss
Pteridopsida
  -
Leiotriletes sp. Potonie and Kremp 1954
Osmundacidites sp. Couper 1953
Cyathidites australis Couper 1953
Polypodiopsida
  - Polypodiaceae
  - Blechnaceae
Angiospermae
 Fagales - Juglandaceae
Platycarya sp. Siebold and Zuccarini 1843
Caryapollenites sp. PotoniƩ 1960
Dicotyledoneae
 Ericales - Ericaceae
Ericaceae indet. Jussieu 1789 heather
Angiospermae
 Gunnerales -
 Asterales - Campanulaceae
Campanulaceae indet. de Jussieu 1789
 Dipsacales - Caprifoliaceae
Caprifoliaceae indet. de Jussieu 1789 honeysuckle
 Santalales -
 Saxifragales - Hamamelidaceae
Hamamelidaceae indet. Brown 1818 witch-hazel
Corylopsis crassa witch-hazel
Corylopsis sp. Siebold and Zuccarini 1835 witch-hazel
 Ranunculales - Menispermaceae
Menispermaceae indet. de Jussieu 1789
 Proteales - Proteaceae
 Proteales -
 Mesangiosperms - Liliaceae
 Typhales - Commelinidae
Sparganium sp. Linnaeus 1753 bur-reed
 Coniferales - Podocarpaceae
Podocarpidites sp. Cookson 1947 podocarp
Pinopsida
 Pinales - Pinaceae
Magnoliopsida
  -
Sphagnaceae
  - Sphagnaceae
Complexiopollis
  -