comment on this calibration


 node name
Libellulidae     Look for this name in NCBI   Wikipedia   Animal Diversity Web
  recommended citations Kohli et al., 2016
  node minimum age
29.2 Ma
The deposits of Céreste are upper Rupelian (33.9-28.1 Ma; Cohen et al., 2013), and can be assigned to the "Stampien supérieur", mammal Paleogene zone MP 24 (Ducreux et al., 1985) which spans 30.2-29.2 Ma (İslamoğlu et al., 2010).
  node maximum age
None specified
 primary fossil used to date this node 
MNHM PE 2014/4
Tauriphila cerestensis , Nel and Paicheler, 1993
Location relative to the calibrated node: Crown

[show fossil details]
     Locality: NO NAME
     Geological age: Modern, Holocene, Quaternary, Cenozoic

  phylogenetic justification
Even though this extant genus has never been included in a phylogenetic analysis based on molecular data, morphological studies suggest that Tauriphila is a libellulid. It shares the unique wing venational apomorphies of the family Libellulidae (e.g., shape of anal loop) and can be attributed to the modern subfamily Pantalinae (= Trameinae) based on the presence of two rows of cells between Rspl and IR2, and the strongly broadened hind wing anal field with numerous small cells basal of anal loop, correlated with a typical triangular shape of hind wings (Davies and Tobin, 1985). The Nel and Paicheler (1993) Tauriphila? fossil meets the synapomorphies for Trameinae (with the exception of flight behavior) and for Tauriphila (last antenodal incomplete, forewing triangle crossed, Mspl distinct, median planate cells forming a single row; Garrison et al., 2006).
  phylogenetic reference(s)
Davies, D.A.L. and Tobin, P. 1985. The Dragonflies of the World: A Systematic List of Extant Species of Odonata. Vol. 2. Anisoptera. Societas Internationalis Odonatologica Series: Rapid Communication (Supplements), Utrecht.
Garrison, R.W., von Ellenrieder, N., and Louton, J.A. 2006. Dragonfly Genera of the New World: An Illustrated and Annotated Key to the Anisoptera. The Johns Hopkins University Press, Baltimore, Maryland.
 tree image (click image for full size) 
tree image
Figure 3 from Kohli et al. (2016).