Fortipesavis

Il num vul dir: “strong-footed bird”1

Mangiava: InsectsUtschels primitivsCretacic tardiv

Fortipesavis was a tiny bird that lived about 98 million years ago. It had a very strong and wide fourth toe, which helped it grip onto thin, wobbly branches like a kingfisher. Its foot was so unusual that scientists named it the 'strong-footed bird'.1 2

Viveva

avant 100 fin 94 milliuns onns4

Cretacic tardiv

Fossils chattads en

Myanmar (Kachin State, Hukawng Valley)1 2

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)

Fortipesavis 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

Fortipesavis is known only from a partial left foot preserved in amber, which is a piece of fossilized tree resin.1

Its fourth toe was almost twice as wide as its second toe, a feature not seen in any other bird, living or extinct.1 2

The foot of Fortipesavis had thick, padded toes with deep grooves between them, which helped it grip tightly onto branches.2

This bird lived in a mangrove forest environment, where it probably perched on thin, swaying branches while hunting for insects.1 2

The fossil of Fortipesavis was found in a piece of amber that weighs only 2.68 grams and is about the size of a large coin.1

Scientists used micro-CT scanning to study the foot inside the amber without damaging the fossil.1

Maletg da Fortipesavis fatg cun IA — In maletg fatg cun IA che mussa co Fortipesavis 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.

Per experts da dinos

Num scientific: Fortipesavis
Numnà da: Clark and O’Connor 20214
Gruppa: Utschels primitivs
Famiglia / clada: Enantiornithes4
Classificaziun: Theropoda > Avialae4
Vegliadetgna da la crappa: 100 fin 94 milliuns onns (Cenomanian)4
Pajais: Myanmar4
Chats da fossils: 1 en The Paleobiology Database4
Scuverta: Fortipesavis was named in 2021 by Alexander Clark and Jingmai O'Connor based on a foot preserved in amber from Myanmar. The fossil was first described in 2019 by Lida Xing and colleagues.1 3
Anc discutà: Scientists are not sure whether Fortipesavis ate insects or fish, because its foot is similar to both modern kingfishers (which eat fish) and bee-eaters (which eat insects).2

Danunder che vegnan ils fatgs

Fortipesavis (en.wikipedia.org)
Frontiers | Exploring the Ecomorphology of Two Cretaceous Enantiornithines With Unique Pedal Morphology (frontiersin.org)
PBDB Taxon (paleobiodb.org)
Fortipesavis in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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