TRIASSIC PLANT FOSSILS FROM POLLOCK ROAD, SOUTHLAND, NEW-ZEALAND

Authors
Citation
Ms. Pole et Ji. Raine, TRIASSIC PLANT FOSSILS FROM POLLOCK ROAD, SOUTHLAND, NEW-ZEALAND, Alcheringa, 18(1-2), 1994, pp. 147-159
Citations number
15
Categorie Soggetti
Paleontology
Journal title
ISSN journal
03115518
Volume
18
Issue
1-2
Year of publication
1994
Pages
147 - 159
Database
ISI
SICI code
0311-5518(1994)18:1-2<147:TPFFPR>2.0.ZU;2-4
Abstract
Sedimentary rocks of the Murihiku Supergroup considered to be latest T riassic (Rhaetian), crop out about 10 m below the Glenham Porphyry, ne ar Glenham, New Zealand. They contain the vegetative macrofossils Marc hantites sp. (Hepaticae), Pachydermophyllum praecordillerae (Frenguell i) Retallack and Pachydermophyllum benmorensis Anderson & Anderson (Pe ltaspermaoeae), cf. Dicroidium dubium var. dubium Anderson & Anderson (Corystospermaceae), Desmiophyllum sp. cf. D. indicum Sahni (possible conifer), and Gingkophytopsis sp. (possible progyosperm). Reproductive material includes ovulate structures (Peltaspermum cournanei sp. nov. ), pollen-bearing structures (Antevsia sp.) and probably seeds of the Peltaspermaceae, ? Umkomasia (Corystospermaceae), and a possible progy mnosperm microsporophyll. The palynoflora is dominated by bisaccate gy mnospermous pollen, mainly Alisporites spp., consistent with the prese nce of corystosperm macrofossils. Moderately common pollen of Cycadopi tes spp. may be of peltasperm origin.