ALCOA - Anglesea Site I Gymnostoma lens (Eocene of Australia)

Where: Victoria, Australia (38.4° S, 144.2° E: paleocoordinates 59.8° S, 144.4° E)

• coordinate based on nearby landmark

When: Lower and Middle Nothofagus asperus pollen zone, Eastern View Formation, Middle Eocene (47.8 - 37.7 Ma)

• the clay lenses are placed, based on diagnostic taxa which begin their stratigraphic range, at the base of the Triorites magnificus Zone, at or about that point which corresponds to the boundary of the Lower and Middle N. asperus Zone of late Middle Eocene age. The coal is of a Middle Eocene

•age.

Environment/lithology: "channel"; lenticular claystone

• Meandering stream environment on a broad coastal plain that was adjacent to the embryonic Southern Ocean.

Size classes: macrofossils, microfossils

• Compressions or mummified leaves.

Preservation: adpression

Collection methods: chemical

• Palynomorphs: slides were scanned until 200 spores and pollen grains were counted.

Primary reference: D. C. Christophel, W. K. Harris, and A. K. Syber. 1987. The Eocene flora of the Anglesea Locality, Victoria. Alcheringa 11(4):303-323 [C. Jaramillo/A. Cardenas ]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 167109: authorized by Carlos Jaramillo, entered by Carlos Jaramillo on 07.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ebenaceae y Lauraceae II, Present but less than 1%.

•400 specimens.

unclassified
  -
Cycadopsida
 Cycadales - Zamiaceae
Pterostoma zamioides Hill 1980 cycads
Angiospermae
 Fagales - Casuarinaceae
Gymnostoma indet. Johnson 1980
 Santalales -
Anacolosidites luteoides Cookson and Pike 1954
 Laurales - Lauraceae
Lauraceae ("I") indet. Jussieu 1789 laurel
Magnoliopsida
  -
Haloragacidites harrisii Mildenhall and Harris 1971
unclassified
  -
"Gymnospermae indet." = Pinophyta
"Gymnospermae indet." = Pinophyta Reveal 1996
Bryopsida
  -
Polypodiopsida
 Schizaeales - Polypodiidae
Lygodium dinmorphyllum Churchill 1969 climbing fern