#hesperornis

[knuppitalism-with-ue]

Results from the Christmas eve #paleostream, on which we covered recent discoveries from this December.

Unktaheela, Yechilacerta, Bustingorrytitan and Meilifeilong

MERRY CHRISTMAS EVERYONE! Have some nice holidays!

[dinodanicus]

A portrait of a nesting female hesperornis waiting on her mate to return from hunting.

[chaobunnyarts]

31 days of pastel paleo critters (1-8)!

Hylonomus

Archaeopteryx

Archelon

Hesperornis

Titanoboa

Meganeura

Basilosaurus

Sinosauropteryx

[artmctalon]

Canadaga arctica

Commissioned illustration of a prehistoric bird described in 1999 from fossil remains excavated in Nunavut Canada.

Since it's only known from some vertebrae and its femurs, I based much of its anatomy off reconstructions of its better-known relative Hesperornis.

Coloration originally derived from that of a Murre or Guillemot, before I decided to add bars and striping like that of the Black-throated Loon.

Initial sketch

[albertonykus]

To the delight of many, Prehistoric Planet came back this year for a second season, bringing with it a whole cast of new and returning maniraptoran dinosaurs. How do these depictions line up with the latest science? I discuss this in my review.

[proflambeovt]

Paleovember 2023, Hesperornis!

Dating back to the Late Cretaceous (and possibly right up to the end of the period), Hesperornis was a flightless, cormorant-like bird that measured up to 6 feet long. It was a marine creature, swimming in the Western Interior Seaway that stretched from Canada, through Kansas, and into Mexico, and had to deal with all of the other marine horrors that swam through there as well. Being on the small side in this nightmare aquarium, Hesperornis survived by being agile in the water, while keeping itself sustained with a beak lined with needle-sharp teeth. Unlike penguins, it wouldn't have been able to walk on it's hind legs, and probably hauled itself on it's belly onto shore like a seal.

[antiqueanimals]

"Hesperornis- a wingless, toothed, diving bird, about five feet in length, which inhabited the great seas during the Cretaceous period, some four millions of years ago." Illustration by Walter King Stone.

The Bird, Its Form, and Function. Written by William Beebe. 1906.

Internet Archive

[unexpecteddinolesson]

Hesperornis

The cormorant-like Hesperornis lived throughout the Campanian age, and possibly the early Maastrichtian age, of the Late Cretaceous period. It reached up to 1.8 m in length, had virtually no wings, and swam with its powerful hind legs. It is unknown whether Hesperornis had lobed toes similar to modern-day grebes, or webbed toes as seen in most aquatic birds. Hesperornis had teeth as well as a beak. The teeth were present along nearly the entire lower jaw and the back of the upper jaw. Studies of the bone surface show that at least the tips of the jaws supported a hard, keratinous beak similar to that found in modern birds.

[ruthkearneydaily]

HESPERORNIS | Primeval (2007-2011) ; Prehistoric Planet (2022-)

[a-dinosaur-a-day]

Trick or teeth?!

Hesperornis!

[carvente]

The linux logo but made it hesperornis, Hesperinux if you will

[skyradiant]

Life of our Prehistoric Planet: Hesperornis rossicus.

[otussketching]

Among other things I’ve done in my inactivity on the Tumbles, I did some storyboard stuff with friends.

As much as I love Prehistoric Planet (And I do, it’s incredible, like easily in my top tier palaeodocs of all time), me and some of my friends thought that it was missing something. Something... avian.  So, I made some storyboards depicting “Deleted scenes” of Prehistoric Planet, featuring some End-Cretaceous Mesozoic birds.  The boards were drawn by yours truly and were masterfully edited by my good friend @shadows-and-science-gone-mad 

I also provided a David Attenborough impression. Not necessarily the best one, though

Here’s a link to the video, hope you enjoy it!  https://www.youtube.com/watch?v=2dwGlbrMRDQ

[newlabdakos]

Hesperornis

(temporal range: 83.6-72 mio. years ago)

[text from the Wikipedia article, see also link above]

Hesperornis (meaning "western bird") is a genus of cormorant-like Ornithuran that spanned throughout the Campanian age, and possibly even up to the early Maastrichtian age, of the Late Cretaceous period.[1][2] One of the lesser-known discoveries of the paleontologist O. C. Marsh in the late 19th century Bone Wars, it was an early find in the history of avian paleontology. Locations for Hesperornis fossils include the Late Cretaceous marine limestones from Kansas and the marine shales from Canada. Nine species are recognised, eight of which have been recovered from rocks in North America and one from Russia.

[paleonativeart]

Day 5: Hesperornis

While other species of Hesperornis are primarily marine Cretaceous bird lived in coastal areas in western interior seaway, but Hesperornis altus is a only freshwater specie that lived in riverbanks of Judith River Formation. Also the posture is very similar to upright standing and walking cormorants, instead of particularly similar to common loon.

[slogokonnor99]

Bit late on hype perhaps, but have some Hilda/Prehistoric planet s2 themed drawings cause why not?