#ctenochasma

[cypressure]

Ctenochasmatid foraging

[primordialprose]

Ancient paleojunk I did when I was 13 in early 2016. Obvious Cicchetti, Smaniotto and Martyniuk inspiration here. I'm glad to see my love of raptorial avisaurs ended up being vindicated. Someday everyone else will love opposite-birds just as much as I do.

The last one has a fun(?) story, I had a biology project, which I chose to due on Confuciusornis, obviously, and it was an infographic set on a big cardboard sign where numerous people would walk by and look. I remember seeing people get upset and turn away from my perfectly fine bird mauling illustration. SAD!

[theultimatenaturelover]

Ctenochasma roemeri, a small passive predator that filtered food from the water like a duck with their 400+ teeth. The genus contains two more species, C. elegans and C. taqueti.

The colors were based on the Great crested grebe. At first I didn't know that ctenochasma had more than one species, so I decided this one to be roemeri XD

[nimbosaur]

Ctenochasma guy. My approach to anthro pterosaurs at is becoming "just make them stand up"

[saritapaleo]

Archovember 2024 Day 20 - Anurognathus ammoni

The type species of the anurognathids, Anurognathus ammoni was a small, batlike pterosaur from Late Jurassic Germany. It had a short head with small, needle-like teeth used for eating insects. While most other Jurassic pterosaurs had long tails, Anurognathus’ was short, allowing it more maneuverability for catching its prey. Bumps on the jaw provided attachment points for long, sensory, whisker-like bristles. Large, forward pointing eyes helped this animal see in dim light, and it was probably most active at dawn and dusk. The second specimen of Anurognathus is exquisitely preserved, and under UV light one can observe imprints of the flight membrane and remains of the muscles of the thigh and arm!

Found in the Altmühltal Formation, Anurognathus lived on an archipelago at the edge of the ancient Tethys Sea. Briny, muddy lagoons allowed for many well-preserved fossils. One of the most famous finds from this formation is the avialan Archaeopteryx, an important species in the study of the origin of birds. Aside from Archaeopteryx, Anurognathus would have also lived alongside other early avialans like Alcmonavis, anchiornithids like Ostromia, and other small theropods like Compsognathus and Sciurumimus. There was a large diversity of fellow pterosaurs here as well, including Pterodactylus, Aerodactylus, Altmuehlopterus, Aurorazhdarcho, Balaenognathus, Ctenochasma, Germanodactylus, Propterodactylus, and Rhamphorhynchus. Pseudosuchians like Atoposaurus and Crocodilaemus lived here as well, and thalattosuchians like Cricosaurus and Dakosaurus would have swam through the nearby seas, alongside icthyosaurs and sea turtles. On land, lizards and rhynchocephalians would have scurried through the underbrush.

This art may be used for educational purposes, with credit, but please contact me first for permission before using my art. I would like to know where and how it is being used. If you don’t have something to add that was not already addressed in this caption, please do not repost this art. Thank you!

[paleostock]

Ctenochasma taqueti

Ctenochasma taqueti was a ctenochasmatid pterosaur from the Late Jurassic of Germany and France.

License this stock resource at: https://paleostock.com/resource/ctenochasma-taqueti-stock-photo

Illustration by Lucas Lima

[newlabdakos]

Pterodactylus

(temporal range: 150.8-148.5 mio. years ago)

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

Pterodactylus (from Greek pterodáktylos (πτεροδάκτυλος) meaning 'winged finger'[2]) is an extinct genus of pterosaurs. It is thought to contain only a single species, Pterodactylus antiquus, which was the first pterosaur to be named and identified as a flying reptile and one of the first prehistoric reptiles to ever be discovered.

Fossil remains of Pterodactylus have primarily been found in the Solnhofen limestone of Bavaria, Germany, which dates from the Late Jurassic period (early Tithonian stage), about 150.8 to 148.5 million years ago. More fragmentary remains of Pterodactylus have tentatively been identified from elsewhere in Europe and in Africa.[3]

Pterodactylus was a generalist carnivore that probably fed on a variety of invertebrates and vertebrates. Like all pterosaurs, Pterodactylus had wings formed by a skin and muscle membrane stretching from its elongated fourth finger to its hind limbs. It was supported internally by collagen fibres and externally by keratinous ridges. Pterodactylus was a small pterosaur compared to other famous genera such as Pteranodon and Quetzalcoatlus, and it also lived earlier, during the Late Jurassic period, while both Pteranodon and Quetzalcoatlus lived during the Late Cretaceous. Pterodactylus lived alongside other small pterosaurs such as the well-known Rhamphorhynchus, as well as other genera such as Scaphognathus, Anurognathus and Ctenochasma. Pterodactylus is classified as an early-branching member of the ctenochasmatid lineage, within the pterosaur clade Pterodactyloidea.

[saritawolff]

#Archovember Day 27 - Ctenochasma elegans

Ctenochasma is known for its many small, thin, closely-packed teeth that line the front half of its jaws, projecting outwards and forming a basket shape. It used to be thought that these unique teeth were used for filter feeding, but as Ctenochasma lacks the adaptations of its relative Pterodaustro, it is now thought that Ctenochasma fed more like a spoonbill, using the increased surface area of its jaws to feel around in mud and murky water.

C. elegans is the smallest Ctenochasma species, with a wingspan of only 9.8 inches!

As some specimens have been found with a crest and some without, this is attributed to either growth (where the juveniles would lack a crest) or sexual dimorphism.

[si-nequal-is]

Ctenochasma & Alcmonavis

[dinodorks]

Ctenochasma by Lucas-Attwell

[emthimofnight]

ayyy so here are some of the prehistoric gryphons I designed forever ago  The ice age gryphon is a terror bird/saber-toothed tiger hybrid and is HUUUUGE like omg, taller than a car! She’s also big and buff and gay The second one is some kind of pterosaur (probably a gnathosaurus or ctenochasma) and a thrinaxodon (the very first “mammal”)! He’s small and bony and eats a lot of fish!

[a-dinosaur-a-day]

Ctenochasma roemeri, C. elegans, C. taqueti

By Chris Masnaghetti, retrieved from http://www.pteros.com/, a website dedicated to education about Pterosaurs.

A reminder that we will not be able to do every pterosaur until we reach $240 in donations on our patreon, so please donate even a dollar if you can.

Name: Ctenochasma roemeri, C. elegans, C. taqueti

Name Meaning: Comb Jaw

First Described: 1852

Described By: Meyer

Classification: Avemetatarsalia, Ornithodira, Pterosauromorpha, Pterosauria, Macronychoptera, Novialoidea, Breviquartossa, Pterodactylomorpha, Monofenestrata, Pterodactyliformes, Caelidracones, Pterodactyloidea, Archaeopterodactyloidea, Euctenochasmatia, Ctenochasmatoidea, Ctenochasmatidae, Ctenochasmatinae

Ctenochasma is another interesting pterosaur, primarily because of the many closely packed teeth in its elongated and narrow jaw. These teeth formed a comb, leading to its name, and imply a filter feeding lifestyle like in its cousin Pterodaustro. It lived around 150 to 145 million years ago, in the Tithonian age of the Late Cretaceous, and is known from the Solnhofen Limestone of Germany, as well as the Purbeck Group of Germany and the Calcaires tâchetés of France. It had a wingspan of about 0.7 meters, making it a fairly small pterosaur, but that was more common in the Jurassic than later forms in the Cretaceous. C. elegans, on the other hand, was even smaller, with a 0.25 meter long wingspan. Many specimens are known from this genus of a variety of ages. The jaws curved upward slightly, forming a spoon at the end, so it could scoop up invertebrates for food in its lagoon-dominated environment. They had crests on their heads as adults that would have been used for display. It may have floan much like modern skuas, given its wing shape. 

Sources:

https://en.wikipedia.org/wiki/Ctenochasma

http://www.pteros.com/pterosaurs/ctenochasma.html

Shout out goes to @staple-face!

[cheetahtrout]

For this fish friday I went to the Aquazoo in Düsseldorf after it had been closed for 3 years of renovation. I saw some old faces, some new faces and had a great time personally. I also found some really old faces - beautyful fossils

Including a little preview to Fishfriday in two weeks ( have something else planned for fishfriday next week )

Bothriolepis , a placoderm. But then we come to the jawless fishes. And its a perfect example for why researching them is so hard:

I present you Thyestes. ... No I swear its there! But I dont blame you! That rock is maybe as long as my smol grabby thumb. And if I didnt know what to look for .... I wouldnt see it either.

This is sadly the status quo for MANY jawless fish fossils, so reconstructing them is pretty hard. But someones gotta try, right?

[irradiatedsnakes]

im a simple lesbian. i find a fandom, i make it dinosaurs, i draw the dinosaurs

comments in captions my dudes

[rabbitcruiser]

Vale dos Dinossauros, Albufeira (No. 1)

Centrosaurus is a genus of herbivorous ceratopsian dinosaurs from the Late Cretaceous of Canada. Their remains have been found in the Dinosaur Park Formation, dating from 76.5 to 75.5 million years ago.

The massive bodies of Centrosaurus were borne by stocky limbs, although at up to 5.5 metres (18 ft) they were not particularly large dinosaurs. Like other centrosaurines, Centrosaurus bore single large horns over their noses. These horns curved forwards or backwards depending on the specimen. Skull ornamentation was reduced as animals aged. The frill was relatively short compared to the total skull length, and could grow to over half a meter (68.8 cm) long in the oldest and largest adults.

Centrosaurus is distinguished by having two large hornlets which hook forwards over the frill. A pair of small upwards directed horns is also found over the eyes. The frills of Centrosaurus were moderately long, with fairly large fenestrae and small hornlets along the outer edges.

Source: Wikipedia

Pterodactylus (from Greek pterodáktylos (πτεροδάκτυλος) meaning 'winged finger') is an extinct genus of pterosaurs. It is thought to contain only a single species, Pterodactylus antiquus, which was the first pterosaur to be named and identified as a flying reptile.

Fossil remains of Pterodactylus have primarily been found in the Solnhofen limestone of Bavaria, Germany, which dates from the Late Jurassic period (early Tithonian stage), about 150.8 to 148.5 million years ago. More fragmentary remains of Pterodactylus have tentatively been identified from elsewhere in Europe and in Africa.

Pterodactylus was a generalist carnivore that probably fed on a variety of invertebrates and vertebrates. Like all pterosaurs, Pterodactylus had wings formed by a skin and muscle membrane stretching from its elongated fourth finger to its hind limbs. It was supported internally by collagen fibres and externally by keratinous ridges. Pterodactylus was a small pterosaur compared to other famous genera such as Pteranodon and Quetzalcoatlus, and it also lived earlier, during the Late Jurassic period, while both Pteranodon and Quetzalcoatlus lived during the Late Cretaceous. Pterodactylus lived alongside other small pterosaurs such as the well-known Rhamphorhynchus, as well as other genera such as Scaphognathus, Anurognathus and Ctenochasma. Pterodactylus is classified as an early-branching member of the ctenochasmatid lineage, within the pterosaur clade Pterodactyloidea.

Source: Wikipedia

[paleostock]

Ctenochasma taqueti

Ctenochasma taqueti was a ctenochasmatid pterosaur from the Late Jurassic of Germany and France.

License this stock resource at: https://paleostock.com/resource/ctenochasma-taqueti-stock-photo

Illustration by Lucas Lima