Back
Leclercqia andrewsii
Leclercqia andrewsii Kasper, Gensel in Gensel, Kasper Rev. Palaeobot. Palynol., 137(3-4): 114. Dec 2005
- Name
- Leclercqia andrewsii
- Rank
- Species
- Generic Name
- [Genus] Leclercqia
- Authors (Name)
- Kasper A. E.
Gensel P. G.
- Authors (Pub.)
- Gensel P. G.
Kasper A. E.
- Publication
- A new species of the Devonian lycopod genus, Leclercqia, from the Emsian of New Brunswick, Canada [2005/12]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 137
- Issue
- 3-4
- Page number
- 114
- Year
- 2005
- Fossil Status
- stems (with sporangia)
- Stratigraphy
- Emsian
- Location
- Low beach cliff on south shore of Restigouche River, 1/2 mi west of point where Provincial Highway 11 crosses Canadian National Railway tracks at Dalhousie Junction, New Brunswick, Canada
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- Geological Survey of Canada, Ottawa, Canada
- Repository Number
- GSC 41676
- Diagnosis
- Stems dichotomous, 1.0 to 1.5 cm wide bearing many closely spaced leaves; leaves pseudowhorled, in 18 ranks or orthostichies, 9 leaves per whorl with one leaf in every other orthostichous rank, leaves in one whorl off-set one rank from leaves in whorl immediately above and below; leaves laminar, 4.0–5.0 mm long, 0.8–1.2 mm wide at base and 0.5–0.6 mm wide at mid-lamina, divided distally into five segments; median segment longest, 1.4–2.0 mm long and 0.3–0.4 mm wide at base, two inner lateral segments 0.6–0.7 mm long, two outer lateral segments 1.0–1.5 mm long, all segments in one plane, distally oriented and adaxially recurved; sporangia ovoid, 2.3–2.7 mm long and 1.2–1.6 mm wide, borne on adaxial surface and proximal part of leaf, attached near its distal end to sporophyll; spores trilete, circular in amb, anisopolar with distal portion hemispherical and proximal portion slightly pyramidal, measuring 50–88 Am in polar view; laesurae extending 3/4 distance to equator, distal ornamentation of baculi or tuberculi (2–3 Am high) often fused producing convolute and anastomosing ridges, these bearing spines 1–3 Am in length; ornamentation most prominent on curvaturae in radial areas; proximal ornamentation of smaller tuberculae or gemmae, sometimes biform; plant homosporous.
