comment on this calibration


 node name
Corduliidae     Look for this name in NCBI   Wikipedia   Animal Diversity Web
  recommended citations Kohli et al., 2016
  node minimum age
12.7 Ma
Mlíkovský (1997) considered it as probable that the classical Radoboj site belongs in micromammal zone MN 7, which spans 14.8-12.7 Ma according to Steininger et al. (1996).
  node maximum age
None specified
 primary fossil used to date this node 
unknown see Kohli et al
Croatocordulia platyptera , de Charpentier, 1843
Location relative to the calibrated node: Crown

[show fossil details]
     Locality: Radoboj
     Geological age: Miocene, Neogene, Cenozoic

More information in Fossilworks   PaleoBioDB

  phylogenetic justification
Kiauta (1969) suggested a close relationship of this fossil genus with the recent Corduliid genera Cordulia, Dorocordulia, and Somatochlora, based on a comparison of wing venational characters. This attribution was followed by Nel and Paicheler (1994). Several synapomorphies confirm an attribution to Corduliidae + Libellulidae, like the hind wings with triangle recessed to arculus and a boot-shaped anal loop with midrib. The presence of an anal triangle and anal angle excludes a position in Libellulidae. The presence of only one crossvein beneath the pterostigma, as well as the phenetic similarity of the venation pattern in both pairs of wings, confirms an attribution to Corduliidae.
  phylogenetic reference(s)
Kiauta, B. 1969. Croatocordulia Platyptera (Charpentier, 1843) Gen. Nov. iz spodnjega miocena radoboja na hrvatskem (Odonata, Anisoptera, Corduliidae, Corduliinae). Geologija: razprave in poročila, 12:85-90.
Nel, A. and Paicheler, J. 1994. Les Libelluloidea fossiles autres que Libellulidae. Un inventaire critique (Odonata, Corduliidae, Macromiidae, Synthemistidae, Chlorogomphidae et Mesophlebiidae). Nouvelle Revue d’Entomologie, 11:321-334.
 tree image (click image for full size) 
tree image
Figure 3 from Kohli et al. (2016).