Cruralispennia

Il num vul dir: “leg feather”1

Mangiava: CharnUtschels primitivsCretacic tempriv

Cruralispennia was a tiny, feathered bird that lived about 131 million years ago in what is now China. It had strange, wiry feathers on its legs that no other bird had before or since!1

Viveva

avant 133 fin 126 milliuns onns4

Cretacic tempriv

Fossils chattads en

Sichakou Basin, Fengning County, Hebei Province, northeastern China1

Spertadad maximala

var 27 km/h (17 mph)

Sgular, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Cruralispennia var 27 km/h (17 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Cruralispennia had a plough-shaped pygostyle, a fused tail bone that was thought to only exist in more advanced birds. This shows that different bird groups evolved similar features separately.1

Its leg feathers were unlike any seen before: the base was like a stiff wire, and the tip was fluffy and split into many tiny strands.1

Even though Cruralispennia lived very early in bird history, its shoulder bone (coracoid) was already very slender, a shape usually found in later Cretaceous birds.1

The name Cruralispennia means 'leg feather' in Latin, because of the unusual feathers on its shin bone (tibiotarsus).1

This bird had 14 teeth in its lower jaw, which is why its full species name is multidonta, meaning 'many teeth'.1

Cruralispennia lived alongside other early birds like Protopteryx and Eoconfuciusornis in the same ancient lake environment.1

Maletg da Cruralispennia fatg cun IA — In maletg fatg cun IA che mussa co Cruralispennia pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart Cruralispennia

?How big was Cruralispennia?

Cruralispennia was a tiny bird, about the size of a modern sparrow. Its leg feathers were only 12 to 16 mm long.2 3

?Where did Cruralispennia live?

It lived in what is now China, around a lake in the Sichakou Basin about 131 million years ago.2

?What did Cruralispennia eat?

Scientists think Cruralispennia likely ate insects or small prey, because it had sharp, curved claws and many teeth in its lower jaw.2 3

Per experts da dinos

Num scientific: Cruralispennia
Numnà da: Wang et al. 20174
Gruppa: Utschels primitivs
Famiglia / clada: Enantiornithes4
Classificaziun: Theropoda > Avialae4
Vegliadetgna da la crappa: 133 fin 126 milliuns onns (Hauterivian)4
Formaziuns da crap: Huajiying4
Pajais: China4
Chats da fossils: 1 en The Paleobiology Database4
Scuverta: Cruralispennia was named in 2017 by Min Wang and colleagues from a nearly complete skeleton found in the Huajiying Formation of China.4 1
Anc discutà: Scientists are not sure what the strange leg feathers were used for. They might have helped with display, insulation, or even sensing the environment.1

Danunder che vegnan ils fatgs

npg.nature.com (npg.nature.com)
Cruralispennia (en.wikipedia.org)
A bizarre Early Cretaceous enantiornithine bird with unique crural feathers and an ornithuromorph plough-shaped pygostyle | Nature Communications (nature.com)
Cruralispennia in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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