Back
Canariophyllum amplum
Canariophyllum amplum L.J. Hickey Mem. Geol. Soc. Amer., 150: 134. 19 Jul 1977
- Name
- Canariophyllum amplum
- Rank
- Species
- Original spelling
- ampla
- Generic Name
- [Genus] Canariophyllum
- Authors (Pub.)
- Hickey L. J.
- Publication
- Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of Western North Dakota [1977/7]
- Journal
- Memoirs of the Geological Society of America
- Volume
- 150
- Page number
- 134
- Year
- 1977
- Fossil Status
- leaves
- Stratigraphy
- Thanetian
- Location
- Goodman Creek Bluffs, Mercer County, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- National Museum of Natural History, Smithsonian Institution, Washington, USA
- Repository Number
- USNM 42787 and its counterpart Princeton University 20114
Data for Paratypus
- Repository
- Princeton University, Princeton, USA
- Repository Number
- PU 20115
- Diagnosis
- Blade asymmetric, elliptic, l/w ratio 1.6 to 1.9; I 8.9 to 10.4 cm; w 5.5 cm (estimated); apex abruptly acuminate; base obtuse; margin entire. Venation, pinnate; primary vein moderate and straight; secondary veins brochidodromous; in twelve opposite to subopposite pairs diverging at approximately 50°; secondaries thick, arching upward 2 to 3 mm from the margin, joining the superadjacent secondary at a right angle; tertiary veins curvingly percurrent, those toward the midvein recurved; tertiary vein origin a right angle on the admedial side of the secondary; exmedial origin acute; some of the tertiaries that originate on the midvein are thicker than average. Quaternary veins strongly impressed, at right angles to the tertiaries, higher order venation reticulate; rank of highest vein order, seventh; highest order showing excurrent branching, third; marginal ultimate veins recurved;
areolation rounded and irregularly polygonal; equant, 0.3 to 1 mm in diameter, no freely ending veinlets preserved.
