Secarisporites verrucosus (Jersey) L.J.R.Rey

Plant Fossil Names Registry Number: PFN002479

Act LSID: urn:lsid:plantfossilnames.org:act:2479

Rank: species

Basionym: Discisporites verrucosus Jersey

Reference: Ruffo Rey, L. J. (2021): New Palynological Data of the Cerro de las Cabras Formation (Middle Triassic) at its Type Locality, Mendoza, Argentina. Biostratigraphic and Phytogeographic Implications. – Ameghiniana 58(3): 181–206., link

Page of description: 205

Types

Holotype 371, Geological Survey of Queensland, Brisbane, Australia
Figures: pl. 2, fig. 15

Note: Holotype: Slide No. 371; Stage co-ordinates 31.0, 97.8; diameter 35 microns. Co-ordinates of lower right-hand corner of cover glass 48.0, 88.8.

Repository details: The micro-slides are stored in the palynological collection of the Geological Survey of Queensland, being numbered in the Ipswich coalfield section of the collection.

Original diagnosis/description

Amb rounded sub-triangular to circular. Diameter (based on 110 measured specimens) 21 to 43 microns (mean about 30 microns). Weak vestigal trilete mark (narrow closed laesurae) observed in some specimens. Exine differentiated into a central portion and an equatorial zone. Equatorial zone 2 to 5 microns in width, smooth or with a few scattered projections. Remainder of distal surface granulate to verrucose, with closely packed rounded projections 1.5 to 4 microns in diameter. Narrow ring of thinner exine (ring-tenuitas or rimula) evident on distal surface at inner margin of equatorial zone in well preserved specimens. Remainder of proximal surface smooth or with reduced ornament. Exine light to dark brown (equatorial zone) to light yellow ( central portion).

Stratigraphy

Triassic

Locality

Australia
Mines Department drillhole N.S. 201 (Ipswich coalfield), 718 ft. 7 in.

Plant fossil remain

pollen and spores

Comments

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