Kallimodon(?) reconstructed

Figure 1. Kallimodon from WikiCommons.

Figure 1. Kallimodon from WikiCommons.

I found this purported Kallimodon specimen on WikiCommons and traced it out. The museum number is not available. If anyone knows it, please let me know. I can’t say if it is Kallimodon or not. I don’t have access to images of the holotype (1887-VI-I), or if I do (there are several specimens on Google), not one is identified as the holotype.

Figure 2. Kallimodon in situ after adjusting levels and a tracing.

Figure 2. Kallimodon? in situ after adjusting levels and a tracing. Possible eggs are in light blue on the in situ specimen. This specimen is small, only about 20 percent larger than pictured here.

Whatever the provence of this specimen, DGS enables details to be brought out, despite or because of crushing. There is a palate labeled Kallimodon, but it obvious comes from another specimen. And I can’t be sure it is the holotype without seeing the label.

Figure 3. Kallimodon reconstructed. This taxon, whether it is Kallimodon or not, nests with Sphenodon, but has distinct proportions.

Figure 3. Kallimodon? reconstructed. This taxon, whether it is Kallimodon or not, nests with Sphenodon, but has distinct proportions, with a small skull, long torso and long legs.

Though distinct from all other rhynchocephalians, this specimen nests with Sphenodon, the living rhynchocephalian. There is also some confusion regarding the naming and numbering of this taxon:

Etymology
Homoesaurus pulchellus Zittell, 1887
Kallimodon pulchellus (Zittell, 1887) Frickhinger 1994
Locality: Kelheim, Bayern (Bavaria) State, Germany.
Horizon: Solnhofen.
Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic.

References
Cocude-Michel, M 1963.  Les rhynchocéphales et les sauriens des calcaires lithographiques (Jurassique supérieur) d’Europe occidentale.  Nouv. Arch. Mus. Hist. Nat. Lyon 7 187 pp.
Frickhinger, K A 1994. Die Fossilien von . The Fossils of Solnhofen: Goldschneck-Verlag, 336pp.
Zittell KA 1887. Rhynchocephalia – Handbuch der Palaeontologie 3:583-800. München and Leipzig.

Paleofile

 

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