New Wapadsberg Pass (Permian of South Africa)

Where: Eastern Cape, South Africa (31.9° S, 24.9° E: paleocoordinates 64.3° S, 25.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Dicynodon other zone, Elandsberg Member (Balfour Formation), Changhsingian (254.2 - 252.2 Ma)

• An age assessment for the New Wapadsberg Pass assemblage is based on a comparison with the Australian palynostratigraphic zones which serve as the standard biostratigraphic classification for the southern hemisphere. The Wapadsberg Pass assemblage is placed in a stratigraphic position corresponding to the subzone APP601 of Price (1997) and in the basal part of the Protohaploxypinus microcorpus Zone (Mory and Backhouse, 1997) based on (1) the dominance of characteristic Late Permian pollen taxa (i.e., Protohaploxypinus and Striatopodocarpites), (2) subordinate numbers of pollen taxa that become dominant in latest Permian and Triassic palynofloras (Lunatisporites and Falcisporites), and (3) the absence of large numbers of (a)cavate spores. Overall, this correlation supports a Late Changhsingian (late Lopingian) age assignment that is in accordance with the megafloral record.

• group of beds-level stratigraphic resolution

Environment/lithology: dry floodplain; lithified, red, silty claystone and lithified siltstone

• Three thin, very pale orange (10 YR 8/2) silty claystone beds occur above a well developed, rooted siltstone; in addition, claystone clasts up to 6 cm in diameter are dispersed throughout the rooted siltstone. Each claystone bed is no more than a few centimetres thick, without discernible primary structures. The lowest bed pinches out eastward, while the second bed can be traced across the outcrop. The macrofloral assemblage is preserved within these lowermost lithologies, and the intervening siltstone bed.

Size class: macrofossils

Preservation: adpression, original sporopollenin, replaced with carbon

Collection methods: bulk, hydrochloric, hydroflouric,

• Repository: Albany Museum, Grahamstown

Primary reference: R. Prevec, R. A. Gastaldo, J. Neveling, S. B. Reid, and C. V. Looy. 2010. An autochthonous glossopterid flora with latest Permian palynomorphs and its depositional setting in the Dicynodon Assemblage Zone of the southern Karoo Basin, South Africa. 292:391-408 [C. Looy/R. Owen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 119437: authorized by Cindy Looy, entered by Rodney Owen on 26.10.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Columinisporites sp.
cf. Columinisporites peppersii
Insecta
  -
Insecta indet. Linnaeus 1758 insect
WN 51
 Dicondylia -
Orthoptera indet. Olivier 1789 grasshopper
WN 397
 Paoliida - Anthracoptilidae
Anthracoptilidae indet. Handlirsch 1922 winged insect
WN 968
Polypodiopsida
 Equisetales - Equisetidae
Phyllotheca australis Brongniart 1828
foliar shoot
Weylandites
  -
Klausipollenites
  -
Lueckisporites
  -
Protohaploxypinus
  -
Chordasporites
  -
Chordasporites sp. Klaus 1960
pollen
Alisporites
  -
Falcisporites
  -
Falcisporites australis
  -
Falcisporites australis Balme 1955
pollen
Lunatisporites
  -
Sphenopsida
  -
Paracalamites australis
axes, rootlets, and nodes
Arberiella
  -
Arberiella sp. Pant and Nautiyal 1960
pollen sacs
Pinopsida
 Pinales - Taxaceae
Arberiopsida
 Arberiales -
Vertebraria indica Royle 1839
root and axis
Eretmonia natalensis DuToit 1932
two leaves
Glossopteris "sp. W1" Brongniart 1828
foliar shoot and leaves
Glossopteris "sp. W2" Brongniart 1828
leaves
Lidgettonia africana Thomas 1958
leaf with two capitula
Hamiapollenites
  -
Hamiapollenites sp. Wilson
pollen
Guttulapollenites
  -