Fortipesavis

Zita rinoreva: “strong-footed bird”1

Raidya: ZvipembeneneShiri dzekutangaCretaceous Yekupedzisira

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

Raivapo

makore mamiriyoni 100 kusvika 94 apfuura4

Cretaceous Yekupedzisira

Mafosiri akawanikwa:

Myanmar (Kachin State, Hukawng Valley)1 2

Kumhanya kwepamusoro

kunenge 27 km/h (17 mph)

Kubhururuka, fungidziro

Rairarama rini?

Triassic

Jurassic

Cretaceous

makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raimhanya zvakadii?

Munhu achifamba kunenge 5 km/h (3 mph)

Mwana ari pabhasikoro kunenge 12 km/h (7 mph)

Fortipesavis kunenge 27 km/h (17 mph)

Bhiza richimhanya kunenge 65 km/h (40 mph)

Dindingwe kunenge 100 km/h (62 mph)

zvinhu zvinonakidza

Zvinonakidza

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

Mufananidzo wakagadzirwa neAI: Fortipesavis — Mufananidzo wakagadzirwa neAI unoratidza kuti Fortipesavis ringangodai raitaridzika sei, wakagadzirwa nekombiyuta kubva pane zvinozivikanwa nemasayendisiti. Ifungidziro chete: mhuka chaiyo ingangodai yaitaridzika zvakasiyana, uye hapana anoziva mavara ayo chaiwo.

Zvevanyanzvi vemadhino

Zita resainzi: Fortipesavis
Akaripa zita:: Clark and O’Connor 20214
Boka: Shiri dzekutanga
Mhuri / boka: Enantiornithes4
Kurongwa kwemhuka: Theropoda > Avialae4
Zera rematombo: makore mamiriyoni 100 kusvika 94 (Cenomanian)4
Nyika: Myanmar4
Zvinyorwa zvemafosiri: 1 mu The Paleobiology Database4
Kuwanikwa: 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
Zvichiri kupokanwa: 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

Kunobva chokwadi

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): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

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