Specimen data model used by Kotka. Every specimen can have any number of sub-specimens (e.g. insects in a jar), and each of them any number of identifications, type information and preparations (morphological preparations, DNA extracts, tissue samples or such).

  
  Part of: Heikkinen M, Riihikoski V, Kuusijärvi A, Talvitie D, Lahti T, Schulman L (2019) Kotka - A national multi-purpose collection management system. Biodiversity Information Science and Standards 3: e37179. https://doi.org/10.3897/biss.3.37179