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Zamites bayeri
Zamites bayeri Erv. Knobl., J. Kvaček Cretac. Res., 18(4): 569. Aug 1997
- Name
- Zamites bayeri
- Rank
- Species
- Generic Name
- [Genus] Zamites
- Authors (Pub.)
- Knobloch E.
Kvaček J.
- Publication
- Bennettitalean and coniferalean (?) leaves from the Cretaceous (Cenomanian) of the Bohemian Massif, Central Europe [1997/8]
- Journal
- Cretaceous Research
- Volume
- 18
- Issue
- 4
- Page number
- 569
- Year
- 1997
- Fossil Status
- foliage
- Stratigraphy
- Cenomanian
- Location
- Malá Chuchle (Kuchelbad), Prague, Czech Republic
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Národní Muzeum, Prague, Czech Republic
- Repository Number
- F 2353
Data for Paratypus
- Repository
- Národní Muzeum, Prague, Czech Republic
- Repository Number
- F 2167
- Diagnosis
- Leaf pinnate ; pinnae lanceolate , entire-margined , alternate to opposite
, base of pinna slightly contracted , symmetrical , apex acutely pointed .
Veins typically 2 – 3 per mm , simple or dichotomising , ending at margins of
pinna . Adaxial cuticle bearing usually polygonal cells with tightly sinuous
anticlinal walls . Abaxial cuticle showing a distinct marginal band with elongate
tetragonal cells sometimes with reduced stomata , orientated longitudinally to
pinna-margin ; anticlinal walls finely sinuous . Inner region of abaxial cuticle with
costal and intercostal bands . Intercostal files display stomata in ill-defined rows ;
syndetocheilic (paracytic) , orientated transversely or obliquely to leaf-margin .
Subsidiary cells large , semicircular , thickly cutinised . Ordinary cells irregular in
shape , each bearing one or more prominent , hollow papillae . Subsurface bodies
form rows . Costal cells elongate , each bearing one or more prominent , hollow
papillae .
