Yelisseev-20 (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: coarse channel fill; medium-grained, coarse sandstone and siltstone

• Sedimentary context:the crevasse channel

•sandstones of site 19 are followed by fragmentary

•plant horizons (Site 20).These are composed of

•plant hash and small wood fragments forming

•thin,1-cm-thick,laminae within medium-to

•coarse-grained massively bedded sandstones,fin-

•ing up to siltstone over 1 m.Rooting is common

•above these hash horizons.These beds are inter-

•preted to represent abandonment and subsequent

•channel fill,with incipient palaeosol formation.

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 34794: authorized by Dana Royer, entered by Dana Royer on 25.09.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalotaxopsis intermedia
occurs in sandstone
Dalembia vachrameevii
occurs in sandstone
Grebenkia anadyrensis
occurs in sandstone
 Pinales - Araucariaceae
Araucarites anadyrensis
occurs in sandstone
 Caytoniales - Caytoniaceae
Sagenopteris variabilis
occurs in sandstone
 Cycadales -
"Nilssonia alaskana" = Nilsonia, "Nilssonia serotina" = Nilsonia
"Nilssonia alaskana" = Nilsonia cycads
occurs in sandstone
"Nilssonia serotina" = Nilsonia cycads
occurs in sandstone
Dicotylophyllum sp. Saporta
occurs in sandstone
Dicotylophyllum sp. B Saporta
occurs in sandstone
 Ranunculales - Menispermaceae