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Compsocradus laevigatus
Compsocradus laevigatus C.M. Berry, W.E. Stein Int. J. Pl. Sci., 161(5): 810. Sep 2000
- Name
- Compsocradus laevigatus
- Rank
- Species
- Generic Name
- [Genus] Compsocradus
- Authors (Pub.)
- Berry C. M.
Stein W. E.
- Publication
- A new iridopteridalean from the Devonian of Venezuela [2000/9]
- Journal
- International Journal of Plant Sciences
- Volume
- 161
- Issue
- 5
- Page number
- 810
- Year
- 2000
- Fossil Status
- stems (with sporangia)
- Stratigraphy
- Givetian
- Strat. comment
- Campo Chico Formation
- Location
- Caño Colorado, Sierra de Perijá, Zulia State, western Venezuela
- Paleoregion
- Gondwana (South America)
Data for Holotypus
- Repository
- National Museum of Wales, Cardiff, U.K.
- Repository Number
- NMW 93.97G.34a + b
- Diagnosis
- Plants as generic diagnosis. First-order axes are 2–6 mm in width ( mm; ), at least 135 mm x¯ p 3.6 n p 26 long. Second-order branches are 0.7–2.2 mm in diameter, up to at least 45 mm long. Ultimate appendages are up to 1.4 mm in diameter at base and up to 25 mm long, branched isotomously up to six times, inserted predominantly acutely. Sporangia are 1.3–1.7 mm long and 0.4–0.7 mm wide, with a maximum of ca. 64 per truss. Ultimate appendages are partly or completely fertile
