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Caudatocorpus arnoldii
Caudatocorpus arnoldii Brack-Hanes Bot. Gaz., 142(2): 295. Jun 1981
- Name
- Caudatocorpus arnoldii
- Rank
- Species
- Generic Name
- [Genus] Caudatocorpus
- Authors (Pub.)
- Brack-Hanes S. D.
- Publication
- On a lycopsid cone with winged spores [1981/6]
- Journal
- Botanical Gazette
- Volume
- 142
- Issue
- 2
- Page number
- 295
- Year
- 1981
- Fossil Status
- cones
- Stratigraphy
- Lower Pennsylvanian
- Strat. comment
- Copland (Taylor) Coal, Breathitt Formation, Pottsville Group
- Location
- Cutchin Quadrangle (7.5 minute) 1954, Lewis Creek, 3/4 mile (1.2 km) NE of Lewis Creek School in SE corner of quadrangle, Leslie County, Kentucky, USA
- Paleoregion
- Laurussia (Laurentia)
Data for Holotypus
- Repository
- Ohio State University, Department of Botany, Paleobotanical Collections, Columbus, USA
- Repository Number
- Slides and peels from coal ball 1459E
Data for Paratypus
- Repository
- Ohio State University, Department of Botany, Paleobotanical Collections, Columbus, USA
- Repository Number
- Slides and peels from coal balls 1060E, 1776I, 1820A, 2191E
- Diagnosis
- Ligulate megasporangiate fructifications not less than 1 cm in diameter with spirally arranged unintegumented sporophylls. Sporophyll pedicel 3.5 mm long, with parenchymatous lateral laminae extending about 1 mm beneath the sporangium, and a long abaxial keel. Pedicel with a single vascular bundle of helical and scalariform tracheids and as- sociated band of transfusion tracheids and abaxial parichnos. Heel (at least 1.2 mm long) and upturned lamina (at least 5 mm long) at distal end of sporo- phyll. Sporangia 3.5-4 mm long, 1.5-2.5 mm wide, and 2-2.5 mm high adaxially elongate with distal Y-shaped fissure and attached for nearly entire length of pedicel (about 3.5 mm long). Sporangia contain a single large functional spore and three abortive spores 200-500,gm in diameter each with an apical prominence 200,4m long. Setaceous Lagenicula-type spores enclosed within spongy struc- ture that persists as a winglike structure attached to the caudal end of the largest spore. Winged, func- tional megaspore up to 4 mm long and 1-2 mm wide with apical prominence 400,4m long. Spores with large smooth apical prominences and spines up to 50,qm long, especially in apical region where folds radiate from apex.
