Proscinetes cf. elegans, copyright Ghedoghedo.

Belongs within: Pycnodontidae.

The Proscinetidae are a group of pycnodontid fishes known from the Late Jurassic and Early Cretaceous, characterised by the alternation of one large and two small teeth in the main vomerine tooth row (Poyato-Ariza & Wenz 2002).

Characters (from Poyato-Ariza & Wenz 2002): Three vomerine tooth rows; main vomerine tooth row alternating between one large and two small teeth, with eight or nine teeth in total (counting each couple of alternating small teeth as one tooth); about 30 to 34 vertebrae; dorsal ridge scales separated from each other; 18 to 21 ventral keel scales; spines on ventral keel scales placed in the posterior region of the midline.

    |--Neoproscinetes Figueiredo & Silva Santos 1987 PA-W02
    |    `--*N. penalvai (Silva Santos 1970) [=Microdon penalvai] PA-W02
    `--Proscinetes Gistl 1848 PA-W02
         |--*P. elegans (Agassiz 1833) [=Microdon elegans] PA-W02
         |--P. bassanii (D’Erasmo 1914) [=Coelodus bassanii, Palaeobalistium bassanii] PA-W02
         |--P. bernardi (Thollière 1852) PA-W02
         |--P. egertoni (Thollière 1852) PA-W02
         |--P. itieri (Thollière 1850) PA-W02
         |--P. radiatus (Agassiz 1839) PA-W02
         |--P. sauvanasi (Thollière 1852) PA-W02
         |--P. thollieri (Saint-Seine 1949) PA-W02
         `--P. wagneri (Thollière 1852) [=Gyrodus wagneri] PA-W02

*Type species of generic name indicated


[P-AW02] Poyato-Ariza, F. J., & S. Wenz. 2002. A new insight into pycnodontiform fishes. Geodiversitas 24 (1): 139–248.

No comments:

Post a Comment

Markup Key:
- <b>bold</b> = bold
- <i>italic</i> = italic
- <a href="">FoS</a> = FoS