Declan Rourke
@declan78.bsky.social
@ualberta masters student in the Currie Lab Studying Ornithomimids. Friendly Neighborhood Paleontologist. All views are my own
Happy #FossilFriday here is Microraptor a genus a Dromaeosaur from the early Cretaceous of China. A unique feature of Microraptor is the presence of flight feathers on the legs in addition to the arms.
February 6, 2026 at 6:09 PM
Happy #FossilFriday here is Microraptor a genus a Dromaeosaur from the early Cretaceous of China. A unique feature of Microraptor is the presence of flight feathers on the legs in addition to the arms.
Reposted by Declan Rourke
Astronomers are planning ambitious telescopes to search for signs of life on distant planets.
A newly discovered world might just be the perfect target. Learn more: https://scim.ag/3Z75OMi
A newly discovered world might just be the perfect target. Learn more: https://scim.ag/3Z75OMi
January 30, 2026 at 12:08 AM
Astronomers are planning ambitious telescopes to search for signs of life on distant planets.
A newly discovered world might just be the perfect target. Learn more: https://scim.ag/3Z75OMi
A newly discovered world might just be the perfect target. Learn more: https://scim.ag/3Z75OMi
Happy #FossilFriday here is Mesosaurus tenuidens a genus of Aquatic para reptile from the early Permian of South Africa and South America. Mesosaurus fossils were instrument in proving continental drift as remains were found in two widely separated regions
January 16, 2026 at 7:28 PM
Happy #FossilFriday here is Mesosaurus tenuidens a genus of Aquatic para reptile from the early Permian of South Africa and South America. Mesosaurus fossils were instrument in proving continental drift as remains were found in two widely separated regions
Happy #FossilFriday here is Beelzebufo ampinga an extinct genus of Hyloid frog from the late Cretaceous of Madagascar. Beelzebufo was the largest frog to ever live with an estimated size of 42 cm and likely preyed on juvenile dinosaurs.
January 9, 2026 at 8:06 PM
Happy #FossilFriday here is Beelzebufo ampinga an extinct genus of Hyloid frog from the late Cretaceous of Madagascar. Beelzebufo was the largest frog to ever live with an estimated size of 42 cm and likely preyed on juvenile dinosaurs.
Reposted by Declan Rourke
A shake-up of the dinosaur family tree! Rhabdodontids are not ornithopods. They are ceratopsians.
There were horned dinosaurs in Europe! As shown by a new fossil of Ajkaceratops from Hungary!
Check out our new study, led by @tweetisaurus.bsky.social ⤵️
There were horned dinosaurs in Europe! As shown by a new fossil of Ajkaceratops from Hungary!
Check out our new study, led by @tweetisaurus.bsky.social ⤵️
January 7, 2026 at 4:32 PM
A shake-up of the dinosaur family tree! Rhabdodontids are not ornithopods. They are ceratopsians.
There were horned dinosaurs in Europe! As shown by a new fossil of Ajkaceratops from Hungary!
Check out our new study, led by @tweetisaurus.bsky.social ⤵️
There were horned dinosaurs in Europe! As shown by a new fossil of Ajkaceratops from Hungary!
Check out our new study, led by @tweetisaurus.bsky.social ⤵️
Reposted by Declan Rourke
A #PrehistoricPlanet Christmas, borrowed from jurassic_world_clipz on TikTok :) Merry Christmas everyone!
December 25, 2025 at 9:13 PM
A #PrehistoricPlanet Christmas, borrowed from jurassic_world_clipz on TikTok :) Merry Christmas everyone!
Reposted by Declan Rourke
I want to wish everyone Merry Christmas and Happy Holidays with this quick sketch of two Microraptorine dinosaurs in the snow ❄️. I hope everybody is having a great day and enjoying the presents! 🎁 🎄 🎅
Merry Christmas and Happy Holidays!
Merry Christmas and Happy Holidays!
December 25, 2025 at 5:02 PM
I want to wish everyone Merry Christmas and Happy Holidays with this quick sketch of two Microraptorine dinosaurs in the snow ❄️. I hope everybody is having a great day and enjoying the presents! 🎁 🎄 🎅
Merry Christmas and Happy Holidays!
Merry Christmas and Happy Holidays!
Second #FossilFriday post, I also got to see the very cool Polycotylid Plesiosaur that is on display at the Natural History Museum of Los Angeles county that has a fetus preserved (see the second photo for a closer look
December 19, 2025 at 7:00 PM
Second #FossilFriday post, I also got to see the very cool Polycotylid Plesiosaur that is on display at the Natural History Museum of Los Angeles county that has a fetus preserved (see the second photo for a closer look
Happy #FossilFriday this week I got to visit the Natural History Museum of Los Angeles County to look at the Maastrichtian Struthiomimus that is on display. I also got to see the rest of the dinosaur gallery which is spectacular!
December 19, 2025 at 6:35 PM
Happy #FossilFriday this week I got to visit the Natural History Museum of Los Angeles County to look at the Maastrichtian Struthiomimus that is on display. I also got to see the rest of the dinosaur gallery which is spectacular!
Reposted by Declan Rourke
#FossilFriday The awesome new article in Science by
@griffinlabpaleo.bsky.social et al. adds more evidence for the validity of Nanotyrannus by showing that the hyoid bone in the holotype has adult bone histology. Here are some more images showing the ceratobranchial bone in place in the skull. 🦖
@griffinlabpaleo.bsky.social et al. adds more evidence for the validity of Nanotyrannus by showing that the hyoid bone in the holotype has adult bone histology. Here are some more images showing the ceratobranchial bone in place in the skull. 🦖
December 5, 2025 at 10:28 PM
#FossilFriday The awesome new article in Science by
@griffinlabpaleo.bsky.social et al. adds more evidence for the validity of Nanotyrannus by showing that the hyoid bone in the holotype has adult bone histology. Here are some more images showing the ceratobranchial bone in place in the skull. 🦖
@griffinlabpaleo.bsky.social et al. adds more evidence for the validity of Nanotyrannus by showing that the hyoid bone in the holotype has adult bone histology. Here are some more images showing the ceratobranchial bone in place in the skull. 🦖
Happy #fossilfriday here is Dinornis a genus of Giant Moa that lived in New Zeland until as recently as the 1500s. Dinornis itself was the tallest bird to ever live with females standing 10 feet tall, a phenomenon known as reverse sexual dimorphism. #PrehistoricPlanetIceAge
December 5, 2025 at 9:00 PM
Happy #fossilfriday here is Dinornis a genus of Giant Moa that lived in New Zeland until as recently as the 1500s. Dinornis itself was the tallest bird to ever live with females standing 10 feet tall, a phenomenon known as reverse sexual dimorphism. #PrehistoricPlanetIceAge
#FossilFriday here is a Triceratops skeleton on display at the Royal Tyrrell Museum
November 21, 2025 at 5:10 PM
#FossilFriday here is a Triceratops skeleton on display at the Royal Tyrrell Museum
Happy #FossilFriday Here is Temnodontosaurus trigonodon a genus of Ichthyosaur from the Early Jurassic of Europe. A notable feature of Temnodontosaurus was its incredibly large eyes the largest of any known vertebrate.
November 7, 2025 at 5:41 PM
Happy #FossilFriday Here is Temnodontosaurus trigonodon a genus of Ichthyosaur from the Early Jurassic of Europe. A notable feature of Temnodontosaurus was its incredibly large eyes the largest of any known vertebrate.
Reposted by Declan Rourke
Here you go. Note: it is still the unformatted version!
Zanno, L.E., Napoli, J.G. Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous. Nature (2025). doi.org/10.1038/s415...
Zanno, L.E., Napoli, J.G. Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous. Nature (2025). doi.org/10.1038/s415...
Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous - Nature
Nature - Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous
doi.org
October 30, 2025 at 6:26 PM
Here you go. Note: it is still the unformatted version!
Zanno, L.E., Napoli, J.G. Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous. Nature (2025). doi.org/10.1038/s415...
Zanno, L.E., Napoli, J.G. Nanotyrannus and Tyrannosaurus coexisted at the close of the Cretaceous. Nature (2025). doi.org/10.1038/s415...
Hello! My name is Declan Rourke I am a Paleontology Masters Student in the Currie lab at the University of Alberta. I currently study North American Ornithomimid Taxonomy. Some of you may already know me from Instagram (@rourkedeclan) and Twitter (declan@ualberta).
October 21, 2025 at 12:44 AM
Hello! My name is Declan Rourke I am a Paleontology Masters Student in the Currie lab at the University of Alberta. I currently study North American Ornithomimid Taxonomy. Some of you may already know me from Instagram (@rourkedeclan) and Twitter (declan@ualberta).