TOOTHFIR dataset metadata description

Internal_ID: internal database identification. Consists of a sequential integer assigned by order of entry.
Original_sample_ID: sample ID as per original publication
Site: name of the site
Country: name of the country where the site is located
Latitude: latitude in decimal degrees (WGS84)
Longitude: longitude in decimal degrees (WGS84)
Location_setting: how the coordinates were set. If these are exact or approximate locations and source of info.
Vertebrate_group: vertebrate group 
Taxonomy: the narrowest taxonomic rank available is provided
Geology: type of geology at the site
Geology_calcareous: is geological is predominately calcareous or not 
Sample_exposure: type of sample deposition with three options: fresh, exposed, fossil.
Chronological_period: broad classification of geological period
Min_date: minimum date for sample chronological range
Max_date: minimum date for sample chronological range
Environment: predominant climatic environment at the site
Environment_tropical: if environment is tropical or not
WAMPI: (Peak Height at 1650 cm-1) / (Peak Height at 605 cm-1)
API: (Peak Height at 1545 cm-1) / (Peak Height at 605 cm-1)
BPI: (Peak Height at 1415 cm-1) / (Peak Height at 605 cm-1)
PCI: ((Peak Height at 605 cm-1) + (Peak Height at 565 cm-1)) / (Peak Height at 590 cm-1)
BAI: (Peak Height at 1415 cm-1) / (Peak Height at 1540 cm-1)
CO3_PO4: ((Peak Height at 1450 cm-1) + (Peak Height at 1415 cm-1))/ ((Peak Height at 605 cm-1)+ (Peak Height at 565 cm-1))
d13C: stable carbon isotopic ratio relative to VPDB standard
C_C: (Peak Height at 1455 cm-1) / (Peak Height at 1415 cm-1)
VPO4RF: (Above valley at 590 cm-1) / ((Above valley at 590 cm-1) + (Valley at 590 cm-1))
CO3_wt_perc: carbonate weight content expressed as a percentage
Ca_wt_perc: calcium weight content expressed as a percentage
P_wt_perc: phosphate weight content expressed as a percentage
F_wt_ppm: fluorine weight content in parts per million
F_wt_perc: fluorine weight content as a percentage:
Ca_P: ratio of calcium vs phosphate content
FTIR_Method: transmission or ATR measurement mode
Instrument: instrument model name used for FTIR measurements
Multiple_measurements: how many separate measurements were done on the sample
Resolution: measurement resolution in cm-1
Pellet_Mix: type of pellet mix employed
Nr_of_scans: number of measurement scans
Background_correction: if a background correction was applied
Mathematical_method: notes on mathematical methods employed for measurement
Software: name of software employed to analyze FTIR data
Sample_prep_method: description of method used to prepare sample powder for measurement
Chemical_pretreatment: if a chemical pre-treatment was applied prior to measurement
Notes: additional notes
Reference: publication reference in Harvard citation style
DOI: digital object identification of publication