Fortipesavis

Din no ase: “strong-footed bird”1

Ɔdii: MmoawaNnomaa a wɔdii kanKretasias Awieeɛ

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

Ɔtenaa ase

mfeɛ ɔpepem 100 kɔsi 94 a atwam4

Kretasias Awieeɛ

Wɔhunuu fɔsil wɔ

Myanmar (Kachin State, Hukawng Valley)1 2

Ntɛmntɛm a ɛsen biara

bɛyɛ 27 km/h (17 mph)

Wimtuo, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Fortipesavis bɛyɛ 27 km/h (17 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

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

Yei yɛ Fortipesavis mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

Ma dino ho animdefoɔ

Nyansahu din: Fortipesavis
Obi a ɔtoo din: Clark and O’Connor 20214
Kuo: Nnomaa a wɔdii kan
Abusua / kuo kɛseɛ: Enantiornithes4
Nkyekyɛmu: Theropoda > Avialae4
Abotan no mfeɛ: mfeɛ ɔpepem 100 kɔsi 94 (Cenomanian)4
Aman: Myanmar4
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu4
Nhunumu: 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
Wɔda so gye ho akyinnye: 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

Baabi a nsɛm no firi

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): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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