First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America

Mike Macphail; Raymond J. Carpenter; Ari Iglesias; Peter Wilf

doi:10.1371/journal.pone.0069281

First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America

Mike Macphail^*, Raymond J. Carpenter, Ari Iglesias, Peter Wilf

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio Márquez Formation of Santa Cruz, Patagonia, Argentina, and are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Dilwynites was formerly known only from Australia, New Zealand, and East Antarctica. The Patagonian Dilwynites occurs with several taxa of Podocarpaceae and a diverse range of cryptogams and angiosperms, but not Nothofagus. The fossils greatly extend the known geographic range of Dilwynites and provide important new evidence for the Antarctic region as an early Paleogene portal for biotic interchange between Australasia and South America.

Original language	English
Article number	e69281
Journal	PLoS ONE
Volume	8
Issue number	7
DOIs	https://doi.org/10.1371/journal.pone.0069281
Publication status	Published - 19 Jul 2013

Access to Document

10.1371/journal.pone.0069281

Cite this

@article{32040d4f1dea4cefb03cc577abf06faa,

title = "First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America",

abstract = "We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio M{\'a}rquez Formation of Santa Cruz, Patagonia, Argentina, and are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Dilwynites was formerly known only from Australia, New Zealand, and East Antarctica. The Patagonian Dilwynites occurs with several taxa of Podocarpaceae and a diverse range of cryptogams and angiosperms, but not Nothofagus. The fossils greatly extend the known geographic range of Dilwynites and provide important new evidence for the Antarctic region as an early Paleogene portal for biotic interchange between Australasia and South America.",

author = "Mike Macphail and Carpenter, {Raymond J.} and Ari Iglesias and Peter Wilf",

year = "2013",

month = jul,

day = "19",

doi = "10.1371/journal.pone.0069281",

language = "English",

volume = "8",

journal = "PLoS ONE",

issn = "1932-6203",

publisher = "Public Library of Science",

number = "7",

}

TY - JOUR

T1 - First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America

AU - Macphail, Mike

AU - Carpenter, Raymond J.

AU - Iglesias, Ari

AU - Wilf, Peter

PY - 2013/7/19

Y1 - 2013/7/19

N2 - We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio Márquez Formation of Santa Cruz, Patagonia, Argentina, and are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Dilwynites was formerly known only from Australia, New Zealand, and East Antarctica. The Patagonian Dilwynites occurs with several taxa of Podocarpaceae and a diverse range of cryptogams and angiosperms, but not Nothofagus. The fossils greatly extend the known geographic range of Dilwynites and provide important new evidence for the Antarctic region as an early Paleogene portal for biotic interchange between Australasia and South America.

AB - We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio Márquez Formation of Santa Cruz, Patagonia, Argentina, and are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Dilwynites was formerly known only from Australia, New Zealand, and East Antarctica. The Patagonian Dilwynites occurs with several taxa of Podocarpaceae and a diverse range of cryptogams and angiosperms, but not Nothofagus. The fossils greatly extend the known geographic range of Dilwynites and provide important new evidence for the Antarctic region as an early Paleogene portal for biotic interchange between Australasia and South America.

UR - http://www.scopus.com/inward/record.url?scp=84880425094&partnerID=8YFLogxK

U2 - 10.1371/journal.pone.0069281

DO - 10.1371/journal.pone.0069281

M3 - Article

SN - 1932-6203

VL - 8

JO - PLoS ONE

JF - PLoS ONE

IS - 7

M1 - e69281

ER -

First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America

Abstract

Access to Document

Other files and links

Fingerprint

Cite this