GDLeahy
@xrciseguy.bsky.social
Pro-science, pro-vax, thinks exercise is a fountain of youth. Likes include hiking, photography and paleontology.
#Fossilfriday: Pseudorhina alifera, a species of angel shark from the Upper Jurassic Solnhofen Limestone of Germany. Pseudorhina is the oldest known genus of angel shark (145-150 million years ago.)
November 21, 2025 at 6:49 PM
#Fossilfriday: Pseudorhina alifera, a species of angel shark from the Upper Jurassic Solnhofen Limestone of Germany. Pseudorhina is the oldest known genus of angel shark (145-150 million years ago.)
A local landmark in Birmingham UK, Ozzy the Bull (named after Ozzy Osbourne) was originally created for the 2022 Commonwealth Games. He was later moved to his new home in New Street Station, a major train station in Birmingham.
November 16, 2025 at 6:23 PM
A local landmark in Birmingham UK, Ozzy the Bull (named after Ozzy Osbourne) was originally created for the 2022 Commonwealth Games. He was later moved to his new home in New Street Station, a major train station in Birmingham.
#Veterans Memorial, Albuquerque, NM. #Veteransday
November 11, 2025 at 5:40 PM
#Veterans Memorial, Albuquerque, NM. #Veteransday
#FossilFriday: The pelycosaur Dimetrodon, from the Lower Permian of North America. Dimetrodon is frequently thought to be a dinosaur, when it fact it is more closely related to humans than dinosaurs!
November 7, 2025 at 10:09 PM
#FossilFriday: The pelycosaur Dimetrodon, from the Lower Permian of North America. Dimetrodon is frequently thought to be a dinosaur, when it fact it is more closely related to humans than dinosaurs!
#FossilFriday: The pelycosaur Dimetrodon, from the Lower Permian of North America. Dimetrodon is frequently thought to be a dinosaur, when it fact it is more closely related to humans than dinosaurs!
November 7, 2025 at 10:07 PM
#FossilFriday: The pelycosaur Dimetrodon, from the Lower Permian of North America. Dimetrodon is frequently thought to be a dinosaur, when it fact it is more closely related to humans than dinosaurs!
I was about to head home yesterday when this beautiful rainbow caught my attention... 😀
October 25, 2025 at 7:29 PM
I was about to head home yesterday when this beautiful rainbow caught my attention... 😀
#FossilFriday: Edmontosaurus annectens, from the uppermost Cretaceous of North America. Recent finds published this week indicate Edmontosaurus possessed rhino-like padded feet and small, triangular spines on the tail.
October 24, 2025 at 8:06 PM
#FossilFriday: Edmontosaurus annectens, from the uppermost Cretaceous of North America. Recent finds published this week indicate Edmontosaurus possessed rhino-like padded feet and small, triangular spines on the tail.
A gorgeous autumn Saturday in Wittlich, Germany... 😀
October 18, 2025 at 5:55 PM
A gorgeous autumn Saturday in Wittlich, Germany... 😀
#FossilFriday: Juvenile and adult skulls of the ornithomimid Gallimimus, from the Upper Cretaceous of Mongolia. Gallimimus is the largest known ornithomimid, and like other ornithomimids, likely possessed large arm feathers. Gallimimus is well known to the public, due to the #JurassicPark movies.
October 17, 2025 at 8:42 PM
#FossilFriday: Juvenile and adult skulls of the ornithomimid Gallimimus, from the Upper Cretaceous of Mongolia. Gallimimus is the largest known ornithomimid, and like other ornithomimids, likely possessed large arm feathers. Gallimimus is well known to the public, due to the #JurassicPark movies.
It's #NationalFossilDay, so here are some fossils you can see in U.S. museums.
October 15, 2025 at 5:31 PM
It's #NationalFossilDay, so here are some fossils you can see in U.S. museums.
#FossilFriday: The dome-headed pachycephalosaur Prenocephale, from the Upper Cretaceous Nemegt Formation of Mongolia.
October 10, 2025 at 8:37 PM
#FossilFriday: The dome-headed pachycephalosaur Prenocephale, from the Upper Cretaceous Nemegt Formation of Mongolia.
120 years ago today, Tyrannosaurus rex was first named and described...
October 4, 2025 at 5:23 PM
120 years ago today, Tyrannosaurus rex was first named and described...
#FossilFriday: Velociraptor mongoliensis, a dromaeosaurid theropod from the Upper Cretaceous of Mongolia. Though famous for its appearances in the #Jurassicpark and #jurassicworld films, the Velociraptor in those movies is actually modeled after Deinonychus, a much older theropod.
October 3, 2025 at 8:39 PM
#FossilFriday: Velociraptor mongoliensis, a dromaeosaurid theropod from the Upper Cretaceous of Mongolia. Though famous for its appearances in the #Jurassicpark and #jurassicworld films, the Velociraptor in those movies is actually modeled after Deinonychus, a much older theropod.
September 29, 2025 at 7:17 PM
A gorgeous example of opal, on display @hmns.bsky.social.
September 28, 2025 at 6:02 PM
A gorgeous example of opal, on display @hmns.bsky.social.
The aspens in the Sandia Mountains are at their golden peak this time of year!
September 27, 2025 at 6:00 PM
The aspens in the Sandia Mountains are at their golden peak this time of year!
The Sandia Mountains contain many different ecological zones, determined by climate and altitude. The eastern side of the mountains are more forested, due to greater precipitation. The "Hudsonian" zone reminds me of Colorado. This zone is shrinking due to the effects of global warming.
September 27, 2025 at 11:46 AM
The Sandia Mountains contain many different ecological zones, determined by climate and altitude. The eastern side of the mountains are more forested, due to greater precipitation. The "Hudsonian" zone reminds me of Colorado. This zone is shrinking due to the effects of global warming.
#FossilFriday: The oviraptorosaurid Caudipteryx zoui, from the Lower Cretaceous of China. Caudipteryx was described in 1998, and its discovery was a bombshell in paleontology. Caudipteryx was the first nonavian theropod known to have possessed pennaceous feathers, like those of birds.
September 26, 2025 at 5:41 PM
#FossilFriday: The oviraptorosaurid Caudipteryx zoui, from the Lower Cretaceous of China. Caudipteryx was described in 1998, and its discovery was a bombshell in paleontology. Caudipteryx was the first nonavian theropod known to have possessed pennaceous feathers, like those of birds.
This photo gives a nice sense of scale to the Sandia Mountains.
The cabin and layered rocks beneath it are composed of 300 million year old marine limestone, which are now at an altitude of > 10,000 feet (3,048 meters.) #photography #hiking #landscape #geology #newmexico
The cabin and layered rocks beneath it are composed of 300 million year old marine limestone, which are now at an altitude of > 10,000 feet (3,048 meters.) #photography #hiking #landscape #geology #newmexico
September 25, 2025 at 5:00 PM
This photo gives a nice sense of scale to the Sandia Mountains.
The cabin and layered rocks beneath it are composed of 300 million year old marine limestone, which are now at an altitude of > 10,000 feet (3,048 meters.) #photography #hiking #landscape #geology #newmexico
The cabin and layered rocks beneath it are composed of 300 million year old marine limestone, which are now at an altitude of > 10,000 feet (3,048 meters.) #photography #hiking #landscape #geology #newmexico
I've always liked this perspective of the Sandia Mountains. Towards the right, one can see the cables which support the Sandia Tram as it takes visitors up and down the mountain. #newmexico #albuquerque #photography #landscape #hiking
September 23, 2025 at 4:54 PM
I've always liked this perspective of the Sandia Mountains. Towards the right, one can see the cables which support the Sandia Tram as it takes visitors up and down the mountain. #newmexico #albuquerque #photography #landscape #hiking
I was there a few weeks ago. I think your hotel had a better view...
September 21, 2025 at 2:36 PM
I was there a few weeks ago. I think your hotel had a better view...
The Willamette River, as it flows through my hometown of Eugene, Oregon. #Oregon #river #photography
September 20, 2025 at 8:54 PM
The Willamette River, as it flows through my hometown of Eugene, Oregon. #Oregon #river #photography
Opened in 1873, the Cast Courts of the Victoria and Albert Museum, London display copies of some of the world's most significant works of art reproduced in plaster, electrotype, photography, and digital media. A sign next to the artwork states where the original is on display.
September 20, 2025 at 2:50 PM
Opened in 1873, the Cast Courts of the Victoria and Albert Museum, London display copies of some of the world's most significant works of art reproduced in plaster, electrotype, photography, and digital media. A sign next to the artwork states where the original is on display.