Mesowear Angle Diet Classifier

Compare caller mesowear relief/angle morphology criteria, preserving discordance rather than labeling actual diet; calibration, wear stage and taxonomic applicability remain external.

Description

Mesowear relief and cusp angle describe tooth morphology.

Mesowear relief and cusp angle describe tooth morphology. Their agreement or disagreement under a policy should remain visible.

Compare caller mesowear relief/angle morphology criteria, preserving discordance rather than labeling actual diet; calibration, wear stage and taxonomic applicability remain external.

When to use Mesowear Angle Diet Classifier

Use this tool to compare caller mesowear relief/angle morphology criteria, preserving discordance rather than labeling actual diet; calibration, wear stage and taxonomic applicability remain external.

Prepare the fossil measurements or occurrence records and the chosen calibration parameters. Retain the stated coordinate, age and measurement conventions.

How to use Mesowear Angle Diet Classifier and understand its results

Prepare the fossil measurements or occurrence records and the chosen calibration parameters. Retain the stated coordinate, age and measurement conventions.
Enter cuspReliefRatios, cuspAnglesDegrees, callerLowReliefMaximum, callerBluntAngleMinimumDegrees using the field table and calculation rules, then run the tool.
Read lowReliefBluntCuspProxyFlags, discordantCuspProxyFlags. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
cuspReliefRatios	Cusp relief ratios	list of number	Required
cuspAnglesDegrees	Cusp angles degrees	list of number	Required
callerLowReliefMaximum	Caller low relief maximum	number	Required
callerBluntAngleMinimumDegrees	Caller blunt angle minimum degrees	number	Required

Align nonnegative relief with angles strictly in (0,180), a nonnegative relief maximum and angle cutoff strictly in (0,180). Return combined and exclusive-or discordance flags, including equality at policy boundaries.^[1]

Paired lists must be nonempty and have equal lengths.

combined flag = relief ≤ limit AND angle ≥ limit; discordance = exactly one condition

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
lowReliefBluntCuspProxyFlags	Low relief blunt cusp proxy flags	list of number
discordantCuspProxyFlags	Discordant cusp proxy flags	list of number

json

{
  "input": {
    "cuspReliefRatios": [
      0.2,
      0.8
    ],
    "cuspAnglesDegrees": [
      100,
      40
    ],
    "callerLowReliefMaximum": 0.3,
    "callerBluntAngleMinimumDegrees": 90
  },
  "output": {
    "lowReliefBluntCuspProxyFlags": [
      1,
      0
    ],
    "discordantCuspProxyFlags": [
      0,
      0
    ]
  }
}

Limitations and assumptions

Wear stage, taxonomy and calibration are external; the flags do not diagnose actual diet.

Numbers and computed results must be finite; overflow produces an error. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Microwear Scratch-Pit Density Ratio Classifier: Measure surface-standardized scratch/pit densities and caller ratio band, requiring positive pit denominators; proxy class does not identify foods, habitual diet or ancestry. For a complementary task, use Tooth Crown Height Wear Stage Rater: Screen measured relative tooth crown loss against caller wear bands on comparable unworn reference crowns; no embedded species ages, reconstructed wear history or diet diagnosis.

References

Mesowear Angle Diet Classifier — tool.io

Similar or alternative tools

Microwear Scratch-Pit Density Ratio Classifier
Measure surface-standardized scratch/pit densities and caller ratio band, requiring positive pit denominators; proxy class does not identify foods, habitual diet or ancestry.
Tooth Crown Height Wear Stage Rater
Screen measured relative tooth crown loss against caller wear bands on comparable unworn reference crowns; no embedded species ages, reconstructed wear history or diet diagnosis.