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Baptornis

Say it: bap-TOR-nis
Name means: “diving bird”1
Ate: FishEarly birdsLate Cretaceous

Baptornis was a flightless diving bird that lived in the Late Cretaceous seas. It swam like a loon and used its beak to catch fish. Unlike most birds today, it had teeth in its beak.1

Lived
90 to 72 million years ago3
Late Cretaceous
Fossils found in
Kansas, USA; Alberta and Saskatchewan, Canada; and IvΓΆ Island, Sweden13
Food
Fish1
Length
0.8 to 1 m1
estimated, about the size of a loon
Weight
3 kg to 5 kg1

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

Baptornis about 1 m longA house cat about 0.5 mA dog about 1 mA bicycle about 1.8 m
as long as 2 house cats nose to tailas long as 6 bananas end to endabout as heavy as a house catas heavy as 42 bananas

How big was Baptornis compared to YOU?

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cool stuff

Fun facts

1

Baptornis had teeth in its beak, which is rare for birds. Most modern birds have no teeth.1

2

It was a strong swimmer and diver, but on land it was clumsy. It probably pushed itself along on its belly or did small hops.1

3

Fossils of young Baptornis have been found in Canada and Alaska, suggesting these birds migrated north to breed in summer, like some penguins do today.1

4

Baptornis lived about 87 to 80 million years ago, when a shallow sea covered much of central North America.1

5

One Baptornis fossil was found with tiny round coprolites (fossil poop) inside. The poop contained remains of a small sabre-toothed herring.1

6

Baptornis was one of the first Mesozoic birds discovered, along with Archaeopteryx. It was named by famous fossil hunter Othniel Charles Marsh in 1877.1

7

A second, much larger species of Baptornis was once named (Baptornis varneri), but later scientists moved it to a different genus called Brodavis.1

AI-madeAI-made picture of Baptornis
An AI-made picture of how Baptornis might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.
you asked

Most asked questions about Baptornis

?How big was Baptornis?

About the size of a loon, which is roughly 0.7 to 1 metre long. It was a medium-sized bird among its relatives.12

?Could Baptornis fly?

No, Baptornis was flightless. It was a strong swimmer and diver instead.1

?What did Baptornis eat?

It ate fish, especially small sabre-toothed herring called Enchodus. It caught them with its beak and swallowed them whole or in pieces.1

?Did Baptornis have teeth?

Yes, Baptornis had teeth in its beak, which is unusual for birds. Most modern birds have no teeth.1

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For dino experts

Scientific name
Baptornis
Named by
Marsh 18773
Group
Early birds
Family / clade
Baptornithidae3
Classification
Theropoda > Avialae3
Age of the rocks
90 to 72 million years (Coniacian / Campanian)3
Rock formations
Dinosaur Park, Niobrara, Judith River3
Countries
Canada, USA, Sweden3
Fossil records
10 in the Paleobiology Database3
Also known as
Parascaniornis (older names now counted as the same animal)3
Discovery
Othniel Charles Marsh discovered the first fossils of Baptornis in Kansas in the 1870s. He named it in 1877.1
Still debated
Scientists are not sure if a fossil from Sweden called Parascaniornis stensioi is actually a second species of Baptornis or just the same species.1

Where the facts come from

  1. Baptornis (en.wikipedia.org)
  2. The Skeleton of Baptornis advenus (Aves: Hesperornithiformes) (exa.ai)
  3. Baptornis in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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More from the same group: Early birds

Also from the same time: Late Cretaceous

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