Specimen Event

Specimen Events link Specimens to Collecting Events.

Event Determiner

Agent asserting that the specimen has Event Type relationship to a collecting event (including locality, geography, geology, etc.). This person has determined coordinates and error, dates, higher geography, and everything else in the “place and time stack.”

Event Date

is the date on which the specimen was assigned to the place/time.

Event Type


Verification Status


Verified By

Person who set Verification Status

Verified Date

Date on which Verification Status was set

Collecting Method

is free-text describing how the specimen and the event are related. Examples:

Collecting Source

Collecting Source is a broad categorization of how the specimen came to be at the associated event. See CTCOLLECTING_SOURCE for values.


is free-text describing the habitat at the place and time of the specimen event. Examples:


Use only for data which pertains to the relationship between the specimen and the event and which is not appropriate for any more-specific fields.

Edit Form

There are two ways to edit specimen-events and associated place/time data.

  1. old/normal way
    • normalized, makes managing data for shared localities easy
    • normalized, makes accidentally editing unrelated specimens easy
    • requires scary access to shared data
    • requires an in-depth understanding of the Arctos Locality Model to safely use
  2. Fork-Edit method
    • denormalized - every save creates a new locality and event
      • but who cares, the cleanup scripts will renormalize the data by consolidating duplicates and purging orphans
    • requires only manage_specimens access; always creates new localities which can’t possibly be shared, so the back-end can safely run with elevated rights to create localities, collecting events, and geology determinations
    • provides a one-click path to keeping full history as unaccepted specimen-events
      • adding rather than editing is an option on every save
        • AWG: should not achiving be an option at all?
    • One-click georeferencing with GeoLocate
    • GUI georeference editing with GeoLocate
    • Provides service-derived coordinates and elevation; use them with one click

Fork-Edit method

This creates a new locality and event with every save. There are two save modes:

In both cases “save” clones the entire event/locality/geology stack; edits apply only to the single specimen-event being used by the single specimen. It is not possible to alter data used by any other specimen from this form.

Edit this Documentation

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