About: Potamornis

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About: Potamornis Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Potamornis is a prehistoric bird genus that dated back to the late Maastrichtian. Its scrappy remains were found in the Lance Formation at Buck Creek, USA, and a single species has been described: Potamornis skutchi.

Attributes	Values
rdfs:label	Potamornis
rdfs:comment	Potamornis is a prehistoric bird genus that dated back to the late Maastrichtian. Its scrappy remains were found in the Lance Formation at Buck Creek, USA, and a single species has been described: Potamornis skutchi.
sameAs	dbr:Potamornis
dcterms:subject	Prehistoric birds of North America Cretaceous birds Flightless birds Hesperornithes Hesperornithidae
Row 4 info	Hesperornithidae
Row 1 info	Aves
Row 4 title	Family
Row 2 info	Hesperornithes
Row 6 info	* P. skutchi
Row 1 title	Class
Row 5 info	Potamornis
Row 2 title	Subclass
Row 6 title	Species
Row 5 title	Genus
Row 3 info	Hesperornithiformes?
Row 3 title	Order
dbkwik:fossil/prop...iPageUsesTemplate	dbkwik:resource/SYyNFxfvZLgCXGOrXYcTMg== dbkwik:resource/boLxLtoGYhqjsf6tb5GqmQ== dbkwik:resource/Fy4YvbW7sn4v4GYzCibvcQ== dbkwik:resource/EAqfsyIyUMZAISPMvpbIAA==
Name	Potamornis
fossil range	Late Cretaceous
abstract	Potamornis is a prehistoric bird genus that dated back to the late Maastrichtian. Its scrappy remains were found in the Lance Formation at Buck Creek, USA, and a single species has been described: Potamornis skutchi. This was almost certainly a member of the Hesperornithes, the hefty and toothed flightless diving birds of the Mesozoic seas. Its precise relationships are not all to clear; the quadrate bone is quite unique in some respects but apparently shares more apomorphies with the family Hesperornithidae - the "typical" Hesperornithes - in cladistic analysis. Consequently, it might be considered a fossil hesperornithid with a different feeding specialization. Though it was heavily built like many (flying and flightless) diving birds, it weighed perhaps 1.5 or 2 kg. This raises the possibility that the Hesperornithes not only included flying members (see also Enaliornis), but that their families might have evolved flightlessness independently.

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