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

Pseudotorellia sp.
occurs in sandstone
Cephalotaxopsis ex gr. intermedia
occurs in sandstone
Pityospermum semiovale
occurs in sandstone
Magnoliaephyllum alternans
occurs in sandstone
Scheffleraephyllum venustum
occurs in sandstone
Dalembia vachrameevii
occurs in sandstone
Grebenkia anadyrensis
occurs in sandstone
 Peltaspermales - Peltaspermaceae
Sphenobaiera vera
occurs in sandstone; closely associated with Platanus
 Pinales - Taxodiaceae
Sequoia sp. Endlicher 1847 coast redwood
occurs in sandstone
 Caytoniales - Caytoniaceae
Sagenopteris variabilis
occurs in sandstone
 Czekanowskiales -
 Cycadales -
"Nilssonia serotina" = Nilsonia
"Nilssonia serotina" = Nilsonia cycads
occurs in sandstone
 Cycadales - Nilsoniaceae
Nilssoniocladus chukotensis cycads
occurs in sandstone
 Polypodiales -
Gleichenites asiatica
occurs in sandstone
 Rhamnales - Rosidae
Cissites sp. 1 Heer 1866
occurs in sandstone
Dicotylophyllum sp. Saporta
occurs in sandstone
 Saxifragales - Cercidiphyllaceae
Trochodendroides ex gr. arctica Berry 1926
occurs in sandstone
 Proteales - Platanaceae
Platanus louravetlanica plane tree
occurs in sandstone; closely associated with Sphenobaiera
 Ranunculales - Menispermaceae