Regatta Point Eocene Lignite (Eocene of Australia)

Where: Tasmania, Australia (42.2° S, 145.3° E: paleocoordinates 64.1° S, 152.5° E)

• coordinate estimated from map

When: Malvacipollis diversus zone pollen zone, Early/Lower Eocene (55.8 - 48.6 Ma)

• The Regatta Point mudstone was placed in the Malvacipollis diversus zone, based on the presence of Intratriporopollenites notabilis, Liliacidites lanceolatus, Polycolpites esobalteus, Proteacidites grandis, P. leightonii and Spinizonocolpites priminatus, which have their first appearance in the M. diversus zone. None of the species characteristic of the more recent Proteacidites asperopolus zone were present. Therefore the Regatta Point mudstone is of Early Eocene age.

Environment/lithology: fluvial-deltaic; lignite

• It may have been deposited as a tidal bar at the mouth of an estuary (Pole & Macphail, 1996). Mangroves (Pole, 2007).
• Lignite/dewatered peat.

Size class: macrofossils

Preservation: adpression

Collection methods: chemical

Primary reference: M. S. Pole. 2007. Early Eocene Dispersed Cuticles and Mangrove to Rainforest vegetation at Strahan-Regatta Point, Tasmania. Palaeontologia Electronica 10(3):1-66 [C. Jaramillo/C. Jaramillo]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 167659: authorized by Carlos Jaramillo, entered by Carlos Jaramillo on 27.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Angiosperm "indet. JAE"
Group D, Parataxa CUT-Z-JAE
Angiosperm "indet. JCC"
Group B, Parataxa CUT-Z-JCC
Equisetopsida
 Pinidae - Pinidae
Araucarioides sp. Bigwood and Hill 1985
Agathis sp. Salisbury 1807
Cycadopsida
 Gnetales - Gnetaceae
Gnetaceae "indet. GDB" Lindley 1834 cycads
 Cycadales - Zamiaceae
Bowenia eocenica Hill 1978 cycads
Angiospermae
 Proteales - Proteaceae
Proteaceae "indet. GDJ" de Jussieu 1789
Parataxa CUT-P-GDJ
 Coniferales - Cupressaceae
Cupressaceae "sp. A" Gray 1822 cypress
Libocedrus sp. Endlicher 1847 cypress
 Coniferales - Podocarpaceae
Podocarpaceae "sp. A" Endlicher 1847 podocarp
Podocarpaceae "sp. C" Endlicher 1847 podocarp
Podocarpaceae "sp. F" Endlicher 1847 podocarp
Prumnopitys sp. Philippi 1860 podocarp
Acmopyle glabra Hill and Carpenter 1991 podocarp
Pinopsida
 Pinales - Taxaceae
? Taxaceae sp. Gray 1822 yew