| McAbeeExample {dilp} | R Documentation |
McAbee Example Data
Description
Leaf physiognomic data of specimens collected from the McAbee Fossil Beds in British Columbia, Canada (Lowe et al. 2018).
Usage
McAbeeExample
Format
McAbeeExample
A data frame with 192 rows and 18 columns:
- Site
Stratigraphic layer or locality
- Specimen Number
Repository number for individual specimen
- Morphotype
Morphotype the specimen belongs to
- Measurer comments
Additional notes about the specimen or its measurements
- Margin
Whether the margin is toothed (0) or entire (1)
- Petiole Width
The width of the petiole at the basalmost point of insertion into the leaf lamina
- Blade area
The reconstructed area of the leaf lamina, not including the petiole
- Blade perimeter
The length of the perimeter of the leaf lamina, not including the petiole
- Feret
The diameter of a circle with the same area as the leaf lamina, not including the petiole
- Minimum Feret
The longest line that can be drawn between two points on the perimeter of a selection that is perpendicular to Feret length. Approximates blade width.
- Raw blade area
The area of a leaf prepared for tooth measurements that still has its teeth.
- Raw blade perimeter
The perimeter of a leaf prepared for tooth measurements that still has its teeth.
- Internal raw blade area
The area of a leaf prepared for tooth measurements with teeth digitally removed.
- Internal raw blade perimeter
The perimeter of a leaf prepared for tooth measurements with teeth digitally removed.
- Length of cut perimeter
The total length of all segments of leaf removed from the leaf blade while removing damage during preparation of the leaf.
- no. of primary teeth
The number of primary teeth along the undamaged perimeter
- no. of secondary teeth
The number of secondary teeth along the undamaged perimeter
Source
Lowe et al. 2018
References
Lowe, A. J., D. R. Greenwood, C. K. West, J. M. Galloway, M. Sudermann, and T. Reichgelt. 2018. Plant community ecology and climate on an upland volcanic landscape during the Early Eocene Climatic Optimum: McAbee Fossil Beds, British Columbia, Canada. Palaeogeography, Palaeoclimatology, Palaeoecology 511: 433–448.