Leptoptilos patagonicus

Leptoptilos patagonicus is an extinct species of large bodied Leptoptilini stork that existed during the Late Miocene. Fossils of the species were discovered in the San Madryn Formation in Chubut Province, Argentina.[1] L. patagonicus is the first fossil record discovery of a member of Leptoptilos in South America[2] and the only one found so far in the New World.[3]

Leptoptilos patagonicus
Temporal range: Late Miocene (Chasicoan)
~9.41 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Ciconiiformes
Family: Ciconiidae
Genus: Leptoptilos
Species:
L. patagonicus
Binomial name
Leptoptilos patagonicus
Noriega & Cladera, 2008

Description

In comparison with extant Leptoptilos, L. patagonicus is larger than L. javanicus and similar in size to the largest members of L. dubius and L. crumeniferus.[4] In comparison with extant Leptoptilos, the hindlimbs are larger than the forelimbs, resulting in shorter wings relative to extant Leptotilos, a characteristic shared by the extinct Leptoptilos falconeri.[4] L. patagonicus is smaller than L. falconeri.[4]

The humerus and ulna are shorter than those of L. dubius and L. crumeniferus.[5] The tibiotarsus is shorter than that of L. falconeri, but slighter longer than those usually found in L. dubius and L. crumeniferus.[5]

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References
  1. Leptoptilos patagonicus at Fossilworks.org
  2. Noriega & Cladera 2008, p. 593.
  3. Zhang et al. 2012, p. 699.
  4. Noriega & Cladera 2008, p. 596.
  5. Noriega & Cladera 2008, p. 599.

Bibliography
  • Noriega, Jorge Ignacio; Cladera, Gerardo (2008). "First record of an extinct marabou stork in the Neogene of South America". Acta Palaeontologica Polonica. 53 (4): 593–600. doi:10.4202/app.2008.0404.
  • Zhang, Zihui; Huang, Yunping; James, Helen F.; Hou, Lianhai (2012). "A Marabou (Ciconiidae: Leptoptilos) from the Middle Pleistocene of Northeastern China". The Auk. 129 (4): 699–706. doi:10.1525/auk.2012.11227.


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