#dynamosaurus

[jurassicjoowan]

"Regicide"

The act of mortally wounding a tyrant lizard king.

A homage to vintage paleoart

Main inspirations were the works of Charles R. Knight & William Stout.

[fluffyyutyrannus]

Happy late birthday to @jurassicjoowan! go show her some love his art is peak.

[mesozoicmindblog]

In 1905, two German palaeontologists have heard about Barnum Brown's paper. They have just finished talking about Tyrannosaurus, the one says to the other

"Also, wie heißt der andere Dinosaurier?“ ("So what is the name of the other dinosaur?")

"Dynamosaurus"

"Es ist nur Saurus? Was zum Teufel?" (It's just Saurus? What the heck?)

Dynamosaurus = Die Name osaurus

[starryknight-dragonarts]

All of my Deadly Sin Pokemon team dressed up and ready for a fancy part Baroness Captain Kaida "The Empress of Pirates" Cinnamon Samedi La Croix, The Sin of Greed, Queen of the Sea, Daughter of the Death Loa (Salazzle) Morgan Le Fey LaCroix, "The Magician", Sin of Lust (Sylveon) Garnet Schattenjager, Last Daughter of the Shadow Hunter, "The Strength" Sin of Wrath (Midnight Lycanroc) Dynamosaurus Imperiosus Regina "Dyna" "The Wheel of Fortune" Sin of Envy (Dracozolt) Aella of the Whirlwind "The Hermit" Sin of Sloth (Serperior) Anastasia "Polaris Northstar" Blanche Leacroft "The Star" the Sin of Gluttony (Female Meowstic) Sanguine Naranja and Ego the Shadow "The Devil" Sin of Pride (Weavile and Sneasler)

[larval-tear]

What's an invalid genus name for a dinosaur/extinct creature that makes u sad its not the real one and why? Dynamosaurus for T. Rex, Laelaps for Dryptosaurus, Leviathan for mastodons, etc.

Agathauma in particular makes me really sad it's not used for any real ceratopsian. Phonetically, it sounds so beautiful to say out loud and the meaning being "Great Wonder" just gives me the vibes of a pulpy novel or fantasy setting with a lost world kind of dinosaur environment, makes it sound so adventurous...

does nanotyrannus count? i really want them to be real

other than that i’m not very familiar with any invalid classifications

[sirleonmoment]

Theropod bust sculpt I did, featuring @jurassicjoowan's Dynamosaurus!

[armatofu]

Todos conocemos al Tyrannosaurus rex, el rey de los dinosaurios. Pero… ¿y si te dijera que estuvo a punto de llamarse de otra forma? Imaginate que en lugar de T. rex, el nombre que quedó en la historia hubiera sido Dynamosaurus imperiosus. Suena imponente, sí, pero no tiene el mismo impacto, ¿no?

Cuando Henry Fairfield Osborn describió al Tyrannosaurus en 1905, también nombró otro dinosaurio gigante en el mismo artículo: Dynamosaurus imperiosus. Sin embargo, después se dio cuenta de que ambos fósiles eran en realidad de la misma especie, y como el nombre Tyrannosaurus rex apareció primero en la publicación, fue el que quedó.

Pero esa no fue la única identidad alternativa del rey. En 1892, Edward Drinker Cope ya había encontrado restos de un dinosaurio gigante y lo llamó Manospondylus gigas, aunque solo tenía vértebras fragmentarias. Años después, se determinó que en realidad eran de T. rex, pero como el nombre de Osborn ya era el aceptado, Manospondylus quedó en el olvido.

Así que sí, nuestro Tyrannosaurus casi se llamó Dynamosaurus, y antes de eso Manospondylus. Pero al final, el destino (y las reglas de la paleontología) lo coronaron como Tyrannosaurus rex, el nombre que hoy es sinónimo de poder, terror y fascinación.

Dibujo: Charles R. Knigh

[redtyrannoranger]

...Tyrannosaurus was almost named Dynamosaurus. Now one of its cousins is named Dynamoterror.

Yikes sounds like a 70’s Batman villain or something. We dodged that bullet.

[nazrigar]

Due to the most recent T.rex naming drama, which most scientists don’t take seriously, I had a dumb idea: An Animated Comedy focusing on a family of T.rexes... named after the many, many names T.rex had over the years:

Scotty "Rex" Ryan = T.rex (and Scotty) 

Regina Ryan 'Nee Susan = T.regina (and Sue) 

Grampa Ed = T. Imperator 

Nancy = Nanotyrannus 

Dynamo Dan = Dynamosaurus Imperiosus 

Breakfast = Soon to-be-breakfast Dakotaraptor

[jurassicjoowan]

Dynamosaurus Vs. Agathaumas, a Saurian Archipelago storyboard

The Dynamo V. Aga storyboard for my passion project Saurian Archipelago has been completed! Feel free to give thoughts, I'm proud with how this all came out! It took about 3 weeks to make everything, with 135 pictures.

The Dynamosaurus and Agathaumas are behemoth dinosaurs in an isolated archipelago ecosystem, both standing as natural enemies, what force and danger do they pose when they're in eachother' sights?!

A little behind the scenes, the music and inspiration for this scene mainly stemmed from the Flying Wing scene from Indiana Jones! :)

[doorbloggr]

Monday 27/6/21 - Dinosaur Name Changes

For today's dinosaur themed post, I'm gonna go over some fun facts I know about dinosaurs names. New species are named when we know an organism has enough unique traits to be separate from any known relatives, this is the same for both extant animals, and animals we only know from fossils. But sometimes, when more information is known, names can change.

Megalosaurus

Megalosaurus, Mark Witton

In the old days of fossil hunting, new skeletal remains of dinosaurs were being found all the time. But since little was understood about the biology and anatomy of this newly discovered group of animals in the 1800s, what defined a new species was uncertain.

Megalosaurus (large reptile) was the first dinosaur to be given a scientifically accepted name in 1824, and for a while this name was a wastebasket taxon. This meant that anytime new remains were found that were not sufficiently distinct from Megalosaurus bones, they were also named Megalosaurus.

As palaeontologists became better at finding specific diagnostic details to define different species, dozens of dinosaur specimens previously called Megalosaurus got their own species names. These include many dinosaurs that are well known even today such as Allosaurus and Dilophosaurus.

A bunch of dinosaurs previously known as Megalosaurus. Left from top to bottom: Ornithomimus, Plateosaurus, Carcharodontosaurus. Right top to bottom: Dilophosaurus, Allosaurus

Artist credit:

Bálint Benke (Plateo), Andrey Atuchin (Allo), Brian Engh (Dilopho), FredtheDinosaurGuy (Carch) Gabriel Ugueto (Ornitho)

Manospondylus gigas

Tyrannosaurus rex, (the junior synonym), Emily Willoughby

In scientific taxonomy, there is now a hard rule called Principle of Priority, where the first name given to a species has hard priority over any subsequent names. If a scientist finds an apparently unknown species and tries to give it a name, if it already had a name, the new name is disbanded.

A well respected palaeontologist named Henry Fairfield Osborn described 3 different dinosaur species in the late 1800s to early 1900s, called Manospondylus gigas, Dynamosaurus imperiosis, and Tyrannosaurus rex. Later close looks at the remains determined that Dynamosaurus and Tyrannosaurus were the same species, and since Osborn named those two in the same time span, he chose Tyrannosaurus rex as the preferred species name.

Holotypes (original skeletal remains) of Tyrannosaurus and Dynamosaurus

Much much later, it was discovered that the remains of Manospondylus was also T.rex, but there was an issue. Since Manospondylus was described in 1892 and Tyrannosaurus in 1902, that technically meant that Manospondylus was the senior species name and should have naming priority. But there is a loophole in the rule, where if the senior name was not a widely recognised/accepted name, the name with more popular usage would win out. And since Manospondylus only corresponded to two pieces of vertebrate and was never given a detailed description, thankfully, Tyrannosaurus won.

The other T.rex

Hybosorus roei, an extant close relative of Tyrannosorus

Although not strictly a dinosaur fact, palaeontologists like to have fun with their naming of species sometimes. In 2001, a large scarab beetle was found trapped in Amber, and scientists decided they would called it Tyrannosorus rex, as a fun pun name. The obvious root here is Tyrannosaurus rex as main naming inspiration, but it's genus name, Tyranno-sorus actually means tyrannical lump, referring to the large lump of Amber(sap) the beetle was found in.

Intraspecies Variation and Collapsing Taxa

Tyrannosaurus lucked out in being able to keep the cooler new name, but that hasn't always been the case. Sometimes, two or more related species have been accepted as valid taxon for a long time, and then scientists come up new theories on their anatomy that result in taxon being combined.

Although two skeletons might vary significantly in appearance, that does not mean they are necessarily different species. Animals today vary a lot in their appearance depending on age or gender. This has meant some dinosaurs with arguably cooler names have been collapsed into more boring species names due to intraspecific (same species) variation.

Skeletal remains of Pachycephalosaurus, Stygimoloch, and Dracorex

The example I want to highlight today is Pachycephalosaurus and it's relatives(?). Theres three well known helmet crested dinosaurs, Dracorex, Stygimoloch, and Pachycephalosaurus. All three are known from detailed remains and the taxa have been valid for a good amount of time. But recently, Palaeontologists have theorised that rather than be related species, the three could represent three life stages of one animal, Dracorex being the youngest form of Pachycephalosaurus. The science isn't final yet, so not every palaeontologist agrees with this collapse of taxa yet, but if this were to occur, Pachycephalosaurus, (arguably the least interesting of the three names) would be the senior species name, and take priority.

Comparison of the skulls of Dracorex, Stygimoloch, and Pachycephalosaurus, Holly Woodward

Other dinosaurs I know who lost cool names off the top of my head are Saurophaganax (now widely considered Allosaurus), and Anatotitan (now widely considered Edmontosaurus).

(Left) Allosaurus, Gabriel Ugueto

(Right) Edmontosaurus, @Squeegool on twitter

Thanks for Reading

If you have any specific dinosaur topics you'd like me to talk about, my DMs and Asks are open. Other dinosaur posts I've made before can be found on the pinned post on my blog.

[hungry-skeleton]

i mean you make a good point about how many people don't understand what actually makes something count as a dinosaur like how a lot of people know that Dynamosaurus is a dino but don't realize that Mosasaurus isn't. but none the less, it still doesn't make dimetrodon a dinosaur

I'm approaching you at mach fucking 10 to smash you on a rock

[starryknight-dragonarts]

Dynamosaurus Imperius Regina (Dynamic-Lizard Imperial Queen) or "Dyna" for short, The Sin of Envy

Much of Dyna's history is lost even to herself, she knows that she was created by somebody, but she doesn't know when, where, or how she got to where it is now, it has been a confusing and stressful haze of a journey for her growing up where she was a not fully conscious frankenstein of prehistoric pokemon wandering around with Wild Magic so at any time whenever she tries to cast a spell reality can randomly just become warped around her, and for a long time she didn't realize what she was doing or how anything was meant to work. There are a few theories as to why Dyna's powers are like this but none of them have been given much confirmation: Perhaps the energy source used to bring her to life was unstable, perhaps there was dormant wild magic in one or both of the fossils used to make her, or maybe it has something to do with a flawed connection between her two mismatched spines? Nothing is certain and that seems to be a running theme with Dyna. As far as Dyna can tell, she is the only known Dracozolt in this world, the first and last of her kind ever created. She is holding out hope that there may be others like her somewhere in the world, not that she would wish her fate on somebody else, but there is also something existentially lonely about being the only one of her kind.

Despite being one of the largest members of the Seven Deadly Sins, she is also the youngest member of the team at 14 years old, and given The Sin of Envy. She doesn't wield a weapon focusing mostly on being a spellcaster, but she also dabbles in potion crafts seeing it as something consistent that she has control over, if she makes a potion of Healing she can expect it to heal instead of having a random effect.

[elsquibbonator]

What’s In A Name?

Some animals and plants go by many names. The cougar, for instance, is also known as the mountain lion, the puma, the catamount, the Florida panther, and over 40 other names-- more than any other mammal. But no matter how many names a species has, it’s only allowed to have one scientific name. If two scientific names are given to the same species, the one given first is the one that stays (which is why we say Tyrannosaurus rex and not Dynamosaurus imperiosus). But then you have those cases where the official scientific name is something people want changed. One of these is an unassuming small brown beetle native to a single cave system in Slovenia. The beetle’s scientific name, given to it in 1937, is Anophthalmus hitleri, after the notorious German dictator. Since the name was given in accordance with the ICZN (International Commission of Zoological Nomenclature), it has never been changed. But should it? In addition to the obvious public-relations damage that being named after Adolf Hitler might cause, it has also brought the beetle unwanted attention. The beetles are sought after by poachers, many of whom are neo-Nazis or collectors of Nazi memorabilia. One could argue, then, that a special exception to the rules should be made here-- that changing the beetle’s name is a necessary step to preserving its future. It is not unheard of for animals to have their common names changed according to what is considered politically correct. The long-tailed duck was once known as the “oldsquaw”, and the goliath grouper was once called the “jewfish”. This has happened with plants as well; the canola plant was formerly known by the much less appealing name of rapeseed. These, however, are all common names, as opposed to scientific names. There is no precedent to officially changing a species’s scientific name in this fashion. But there absolutely should be. Having a species named after oneself is like having a monument erected. And if distasteful monuments can be torn down, as is happening with Confederate monuments across America, then distasteful species names ought to be able to be changed. 

[albertonykus]

Re Indian abelisaurs: wouldn’t the proper name be the first one to appear in the paper (like how Tyrannosaurus vs. Dynamosaurus was settled)?

No. It is a common misconception that the priority of names coined in the same paper is influenced by the order in which they originally appeared, but there is no such rule in the ICZN. Tyrannosaurus is considered the correct name over Dynamosaurus because Osborn (1906) designated it as the correct name when he synonymized them; it has nothing directly to do with the order in which they were previously mentioned.