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The Painten pterosaur gets a name and a number

Sunday, July 28, 2024 14:43

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Spindler 2024
redescribed a previously privately held, and therefore unnamed and unnumbered pterosaur specimen informally known as the Painten pterosaur (Figs1,2).

The LPT nested that specimen in 2014 following data in Tischlinger and Frey 2013.

Now the specimen has a name,
Propterodactylus frankerlae, and a museum number, DMA-JP-2011/006 (Dinosaurier Museum Altmühltal: Jurassic Palaeontology).

Figure 1. The Painten pterosaur specimen in situ under visible and UV light, then under DGS to identify the bones with colors. From Tischlinger and Frey 2013.

From the abstract:
“As previously shown, it has a nearly perfect mix of plesiomorphic rhamphorhynchoid-grade, wukongopterid, and derived pterodactyloid traits. Due to its lack of autapomorphies, Propterodactylus is a sufficient intermediate taxon that closes the greatest knowledge gap regarding the evolution of pterosaur morphology.”

Spindler also reported, “No phylogenetic analysis is carried out.”

Figure 2. Subset of the LRT focusing on Pterodactylids and Pterodactylus. From 2020.

That’s unfortunate.
According to the large pterosaur tree (LPT, 272 taxa, subset Fig 2) the Painten pterosaur = Propterodactylus still nests close to the base on the Pterodactylidae ten years after it was first nested there.

Figure 3. Click to enlarge. Painten pterosaur compared to phylogenetic sister taxa. Ornithocephalus and SMNS 81775 are the basal taxa here. Note that while everything else grows on derived taxa, the metacarpus stays the same size. The large size of the Painten pterosaur, along with the greater length of pedal digit 3 and the brevity of the metacarpus sets it apart in its own clade, of which this the first known representative. Larger than its relatives, this is an unlikely juvenile (contra Hone). From 2014.

The LPT split up the former clade Pterodactyloidea
into five grade of pterodactyloids, all derived from taxa like Protpterodactylus with a long pedlal digit 5, a long attenuate tail and other non-pterodactyloid-grade traits.

Peters said goodbye to the Pterodactyloidea in 2007.

Being cited has no real reward for amateurs. What is a unfortunate is the lack of scientific curiosity in the universities with regard to pterosaur origins and radiations.

Just add taxa to your own LPT to find out for yourself.

References
Peters D 2007. The origin and radiation of the Pterosauria. In D. Hone ed. Flugsaurier. The Wellnhofer pterosaur meeting, 2007, Munich, Germany. p. 27.
Spindler F 2024. A pterosaurian connecting link from the Late Jurassic of Germany. 27(2):a35. https://doi.org/10.26879/1366
palaeo-electronica.org/content/2024/5213-pterosaurian-connecting-link
Tischlinger H and Frey E 2013. Ein neuer Pterosaurier mit Mosaikmerkmalen basaler und pterodactyloider Pterosauria aus dem Ober-Kimmeridgium von Painten (Oberpfalz, Deutschland) — A new pterosaur with mosaic characters of basal and pterodactyloid pterosauria from the Upper Kimmeridgian of Painten (Upper Palatinate, Germany) Archaeopteryx 31:1-13.

wiki/Propterodactylus

New Painten “Pro-Pterodactyloid”

Source: https://pterosaurheresies.wordpress.com/2024/07/29/the-painten-pterosaur-gets-a-name-and-a-number/

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