Neuquenornis

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Neuquenornis
Temporal range:
Ma
↓
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Clade: Avialae
Clade: †Enantiornithes
Family: †Avisauridae
Genus: †Neuquenornis
Chiappe & Calvo 1994
Species:
†N. volans
Binomial name
†Neuquenornis volans
Chiappe & Calvo 1994

Neuquenornis volans

enantiornithean birds which lived during the late Cretaceous period in today's Patagonia, Argentina. It is the only known species of the genus Neuquenornis. Its fossils were found in the Santonian Bajo de la Carpa Formation, dating from about 85-83 million years ago. This was a sizeable bird for its time, with a tarsometatarsus 46.8mm long. Informal estimates suggest that it measured nearly 30 cm (12 in) in length excluding the tail [1]
.

Etymology

The naming means "Flying bird from Neuquén Province".[2] Neuquenornis, from Neuquén Province + Ancient Greek ornis (όρνις) "bird". volans, Latin for "flying" in reference to the species' well-developed wing skeleton.

Description

N. volans was described by Chiappe and Calvo in 1994. It was also mentioned in previous papers by Chiappe, but named only by its catalog number. The holotype fossil is catalogued as MUCPv-142. It is in the collection of the Museo de Ciencias Naturales, Universidad Nacional del Comahue, Neuquen, Argentina. MUCPv-142, a skull and a partial postcranial remains, indicates an animal with a length of 23.5 cm (9.3 in), hip height of 17 cm (6.7 in), and weight of 205 g (7.2 oz).[3]

Phylogeny

Chiappe and Calvo (1994) placed N. volans in the

Enantiornithiformes. A more recent, unpublished, unreviewed, analysis that includes many newly described Enantiornithes[4] finds it closer to Concornis and Cathayornis
(or Sinornis).

The cladogram below is from Wang et al., 2015:[5]

Ornithothoraces

The cladogram below is from Wang et al., 2022:[6]

Enantiornithes
l

Key to letters:

b = Boluochia
c = Cathayornis
e = Enantiophoenix
f = Houornis
h = Longipteryx
i = Parabohaiornis
j = Pterygornis
l = Vorona
m = Yuanjiawaornis
n = Yungavolucris

Paleobiology

Long legs with hooked claws were well suited for perching as well as for пathering food on ground or shallow water.[2] A nesting colony has been attributed to this bird, showcasing that it display megapode-like egg burial behaviour.[7]

References

  1. ^ Chiappe, Luis M.,Calvo, Jorge O. (1994) "Neuquenornis volans, a New Late Cretaceous Bird (Enantiornithes: Avisauridae) from Patagonia, Argentina""Journal of Vertebrate Paleontology" Vol. 14, No. 2 (Jun. 22, 1994), pp. 230-246 https://www.jstor.org/stable/4523563
  2. ^
    ISBN 9780988596504
    . Retrieved 29 August 2022.
  3. ISBN 9780691190594. Retrieved 29 August 2022.{{cite book}}: CS1 maint: multiple names: authors list (link
    )
  4. ^ Mortimer (2004)
  5. S2CID 83603202
    .
  6. S2CID 247432530
    .
  7. PMID 23613776
    .

Further reading
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