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Melkamter

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Melkamter
Temporal range: Early Jurassic, Toarcian
Holotype specimen
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Clade: Pterodactylomorpha
Clade: Monofenestrata
Genus: Melkamter
Fernandes, Pol & Rauhut, 2024
Species:
M. pateko
Binomial name
Melkamter pateko
Fernandes, Pol & Rauhut, 2024

Melkamter (meaning "winged lizard") is an extinct genus of monofenestratan pterosaurs from the Early Jurassic Cañadón Asfalto Formation of Argentina. The genus contains a single species, M. pateko, known from a partial skull and fragmentary postcranium. Melkamter represents the oldest known monofenestratan pterosaur in the fossil record.[1]

Discovery and naming

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The Melkamter holotype specimen, MPEF-PV 11530, was discovered in sediments of the Cañadón Asfalto Formation (Queso Rallado locality) near the Cerro Cóndor village of Chubut Province, Argentina. The specimen consists of a partial cranium preserved on a slab and counterslab, two teeth, four dorsal vertebrae, a wing metacarpal, and other unidentified bone fragments.[1]

The fossil material was first reported at an academic conference in 2024 before its formal description.[2]

In 2024, Fernandes, Pol & Rauhut described Melkamter pateko as a new genus and species of early monofenestratan pterosaurs based on these fossil remains. The generic name, Melkamter, is derived from Tehuelche words mel, meaning "wing" and kamter, meaning "big lizard", referencing the etymology of clade Pterosauria (meaning "winged lizard" in Greek). The specific name, pateko, combines the Tehuelche words pate, meaning "rasped" and ko, meaning "set of bones", referencing the type locality (Queso Rallado, meaning "grated cheese") and the broken preservation of the holotype.[1]

Melkamter is the fifth Jurassic pterosaur to be named from South America, following Herbstosaurus in 1975, Wenupteryx in 2013, the coeval Allkaruen in 2016, and Tacuadactylus in 2021.[1]

Description

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The preserved skull of Melkamter is 131.3 millimetres (5.17 in) long.[1]

Speculative life restoration

References

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  1. ^ a b c d e Fernandes, Alexandra E.; Pol, Diego; Rauhut, Oliver W. M. (2024-12-11). "The oldest monofenestratan pterosaur from the Queso Rallado locality (Cañadón Asfalto Formation, Toarcian) of Chubut Province, Patagonia, Argentina". Royal Society Open Science. 11 (12). doi:10.1098/rsos.241238. ISSN 2054-5703.
  2. ^ Fernandes, A. E.; Pol, D.; Rauhut, O.W.M. (2024). A monofenestratan pterosaur from the late Early Jurassic of the Chubut province of Patagonia, Argentina (PDF). 21st EAVP Conference.