Equisetites moretonensis Shirley

Plant Fossil Names Registry Number: PFN000251

Act LSID: urn:lsid:plantfossilnames.org:act:251

Rank: species

Reference: Shirley, J. F. (1898): Additions to the fossil flora of Queensland, mainly from the Ipswich Formation, Trias-Jura system. – Bulletin, Geological Survey of Queensland 7: 1–25, 27 pls.

Page of description: 25

Illustrations or figures: pl. XVIII, fig. 3

Other combinations

Fredlindia moretonensis (Shirley) McLoughlin, C.Pott et Sobbe 2018

Types

Holotype QMF543, Queensland Museum, Australia
Figures: pl. XVIII, fig. 3

Note: Inv. no. and repository according to McLoughlin et al. (2018): Palaeobio. Palaeoenv. 98(1): 85. In this paper there is written "Holotype: QMF543; here designated...".
Shirley (1898: Bull. Geol. Surv. Queensland, 7: 25) mentiones only one specimen for this new species from the collection of Mr. J. H. Simmonds.

Holotype figured: McLoughlin et al. (2018): Palaeobio. Palaeoenv. 98(1): fig. 8c.

Original diagnosis/description

This cone-scar? is roughly circular, or oval. The centre is a circle of about ½ in., showing the scars of broken vessels as pits on the surface; at the base of each impression the circle approaches near to a sinus, opposite to what looks like a stalk or branch; this latter is always present; surrounding the inner circle is a ring of striated tissue, the striae lying in radial positions.

Emended diagnosis

McLoughlin et al. (2018: Palaeobio. Palaeoenv., 98(1): 85):
Gynoecium more-or-less bilaterally symmetrical, circular, elliptical or obovate, borne on a stout to slender pedicel. Ovules and interseminal scales form a marginal rim around receptacle and possibly covering abaxial surface. Interseminal scales rod-shaped, prismatic; ovules c. four to five times the width of interseminal scales but otherwise similar in shape.

Stratigraphy

Triassic, Upper Triassic
Blackstone Formation; Carnian or earliest Norian [from McLoughlin et al. (2018): Palaeobio. Palaeoenv. 98(1): 85]

Locality

Australia
Denmark Hill, Ipswich Basin, southeast Queensland

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Comments

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