Yelisseev-25 (Cretaceous to of Russian Federation)

Also known as Yelisseev locality, Grebenka flora

Where: Russian Federation (64.5° N, 168.9° E: paleocoordinates 78.6° N, 166.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Krivorechenskaya Formation, Albian to Albian (113.0 - 93.9 Ma)

• uppermost Albian to Lower Cenomanian

• group of beds-level stratigraphic resolution

Environment/lithology: crevasse splay; fine-grained sandstone and medium-grained sandstone

• Sedimentary context:at this site a fine-grained

•horizontally laminated sandstone grades upwards

•to medium-grained trough cross-bedded sand-

•stone with abundant rootlets.This is interpreted

•as a microdelta in fill of a shallow floodplain pond.

Size class: macrofossils

Primary reference: R. A. Spicer, A. Ahlberg, A. B. Herman, S. P. Kelley, M. I. Raikevich and P. M. Rees. 2002. Palaeoenvironment and ecology of the middle Cretaceous Grebenka flora of northeastern Asia. Palaeogeography, Palaeoclimatology, Palaeoecology 184:65-105 [D. Royer/D. Royer/D. Royer]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 34801: authorized by Dana Royer, entered by Dana Royer on 26.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Scheffleraephyllum venustum
occurs in sandstone
Dalembia vachrameevii
occurs in sandstone
Grebenkia anadyrensis
occurs in sandstone
Polypodiopsida
  - Gleicheniaceae
Gleichenites asiatica
occurs in sandstone
Ginkgoopsida
 Czekanowskiales -
Phoenicopsis ex gr. angustifolia Heer 1876
occurs in sandstone
 Ginkgoales -
Sphenobaiera vera
occurs in sandstone; closely associated with Platanus
 Ginkgoales - Ginkgoaceae
Ginkgo ex gr. adiantoides Unger 1845 ginkgo
occurs in sandstone
 Caytoniales - Caytoniaceae
Sagenopteris variabilis Velenovsky 1885
occurs in sandstone
Cycadopsida
 Cycadales -
"Nilssonia serotina" = Nilsonia
"Nilssonia serotina" = Nilsonia cycads
occurs in sandstone
 Cycadales - Nilssoniaceae
Nilssoniocladus chukotensis cycads
occurs in sandstone
Pityospermum
  -
Pityospermum semiovale
occurs in sandstone
Pseudotorellia
  -
Pseudotorellia sp. Florin 1936
occurs in sandstone
Magnoliopsida
  -
Dicotylophyllum sp. Saporta 1894
occurs in sandstone
Angiospermae
 Vitales - Vitaceae
Cissites sp. 1 Debey 1866
occurs in sandstone
 Ranunculales - Menispermaceae
 Saxifragales - Cercidiphyllaceae
Trochodendroides ex gr. arctica Berry 1926
occurs in sandstone
 Proteales - Platanaceae
Platanus louravetlanica plane tree
occurs in sandstone; closely associated with Sphenobaiera
 Magnoliales - Magnoliaceae
Magnoliaephyllum alternans Heer 1926 magnolia
occurs in sandstone
 Coniferales - Cupressaceae
Sequoia sp. Endlicher 1847 coast redwood
occurs in sandstone
Pinopsida
 Pinales - Taxaceae
Cephalotaxopsis ex gr. intermedia yew
occurs in sandstone