Rustin C. Perry
@phytosuchian.bsky.social
Paleontologist and lover of science🦣🔬🧬
Paleoherpetology 🐸🐊🐢🦎🐍
Researching phytosaurs!
Paleoherpetology 🐸🐊🐢🦎🐍
Researching phytosaurs!
Dinosauromorph Femur
From Quay County, New Mexico, Bull Canyon Formation.
Possibly Dromomeron sp. Due to size and distal/proximal ends!
From Quay County, New Mexico, Bull Canyon Formation.
Possibly Dromomeron sp. Due to size and distal/proximal ends!
November 25, 2025 at 7:37 PM
Dinosauromorph Femur
From Quay County, New Mexico, Bull Canyon Formation.
Possibly Dromomeron sp. Due to size and distal/proximal ends!
From Quay County, New Mexico, Bull Canyon Formation.
Possibly Dromomeron sp. Due to size and distal/proximal ends!
Setting up a small study involving paleobotany. It should be a bit of fun even if it is out of my comfort zone.
🌺
🌺
September 6, 2025 at 3:48 AM
Setting up a small study involving paleobotany. It should be a bit of fun even if it is out of my comfort zone.
🌺
🌺
Reposted by Rustin C. Perry
Eric Buffetaut (2025)
Furileusaurian osteological characters in Genusaurus sisteronis Accarie et al., 1995, an abelisaurid dinosaur from the Albian (Lower Cretaceous) of south-eastern France
Carnets natures 12: 79-88.
carnetsnatures.fr/volume12/Gen...
Furileusaurian osteological characters in Genusaurus sisteronis Accarie et al., 1995, an abelisaurid dinosaur from the Albian (Lower Cretaceous) of south-eastern France
Carnets natures 12: 79-88.
carnetsnatures.fr/volume12/Gen...
carnetsnatures.fr
September 3, 2025 at 3:27 PM
Eric Buffetaut (2025)
Furileusaurian osteological characters in Genusaurus sisteronis Accarie et al., 1995, an abelisaurid dinosaur from the Albian (Lower Cretaceous) of south-eastern France
Carnets natures 12: 79-88.
carnetsnatures.fr/volume12/Gen...
Furileusaurian osteological characters in Genusaurus sisteronis Accarie et al., 1995, an abelisaurid dinosaur from the Albian (Lower Cretaceous) of south-eastern France
Carnets natures 12: 79-88.
carnetsnatures.fr/volume12/Gen...
Reposted by Rustin C. Perry
Sues, HD., Ma, W. & Ezcurra, M.D. Braincase and digital endocast of a loricatan pseudosuchian (Reptilia: Archosauria) from the Upper Triassic of Nova Scotia (Canada). PalZ (2025). doi.org/10.1007/s125...
Braincase and digital endocast of a loricatan pseudosuchian (Reptilia: Archosauria) from the Upper Triassic of Nova Scotia (Canada) - PalZ
We present a detailed description of an incomplete but excellently preserved braincase and a digitally generated endocast of a pseudosuchian archosaur from the Upper Triassic (Carnian) Evangeline Memb...
doi.org
August 16, 2025 at 12:06 PM
Sues, HD., Ma, W. & Ezcurra, M.D. Braincase and digital endocast of a loricatan pseudosuchian (Reptilia: Archosauria) from the Upper Triassic of Nova Scotia (Canada). PalZ (2025). doi.org/10.1007/s125...
Phytosaur fossils from across 3 states.
1: Arizona
2: Texas (harder to find)
3: New Mexico
1: Arizona
2: Texas (harder to find)
3: New Mexico
August 8, 2025 at 5:51 AM
Phytosaur fossils from across 3 states.
1: Arizona
2: Texas (harder to find)
3: New Mexico
1: Arizona
2: Texas (harder to find)
3: New Mexico
This is the metatarsal of a phytosaur based on the thickness, definition of the collateral ligament pits on the distal end, and the slight curvature.
The curvature and length possibly point to this being from digits III or IV which are the longer digits and built for weight-bearing stresses.
The curvature and length possibly point to this being from digits III or IV which are the longer digits and built for weight-bearing stresses.
July 19, 2025 at 8:57 AM
This is the metatarsal of a phytosaur based on the thickness, definition of the collateral ligament pits on the distal end, and the slight curvature.
The curvature and length possibly point to this being from digits III or IV which are the longer digits and built for weight-bearing stresses.
The curvature and length possibly point to this being from digits III or IV which are the longer digits and built for weight-bearing stresses.
Pretty nice, partial, phytosaur squamosal!
The smooth part of the fossil (in the top right image) would have been where it connected to the orbit!
The squamosal on the right and left side of the skull would have also helped to form the supratemporal fenestra!
The smooth part of the fossil (in the top right image) would have been where it connected to the orbit!
The squamosal on the right and left side of the skull would have also helped to form the supratemporal fenestra!
May 4, 2025 at 7:36 PM
Pretty nice, partial, phytosaur squamosal!
The smooth part of the fossil (in the top right image) would have been where it connected to the orbit!
The squamosal on the right and left side of the skull would have also helped to form the supratemporal fenestra!
The smooth part of the fossil (in the top right image) would have been where it connected to the orbit!
The squamosal on the right and left side of the skull would have also helped to form the supratemporal fenestra!
Amazingly well preserved phytosaur coracoid base.
Definitely from a large specimen!
Definitely from a large specimen!
April 23, 2025 at 4:30 AM
Amazingly well preserved phytosaur coracoid base.
Definitely from a large specimen!
Definitely from a large specimen!
Reposted by Rustin C. Perry
"If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then we're up for grabs for the next charlatan, political or religious, who comes ambling along." - Carl Sagan
April 5, 2025 at 10:23 PM
"If we are not able to ask skeptical questions, to interrogate those who tell us that something is true, to be skeptical of those in authority, then we're up for grabs for the next charlatan, political or religious, who comes ambling along." - Carl Sagan
Scapulocoracoid fossil from the redonda formation of New Mexico.
Possibly an adult Redondasaurus
Possibly an adult Redondasaurus
April 4, 2025 at 1:53 AM
Scapulocoracoid fossil from the redonda formation of New Mexico.
Possibly an adult Redondasaurus
Possibly an adult Redondasaurus
Sub-adult Machaeroprosopus femur
April 3, 2025 at 2:23 PM
Sub-adult Machaeroprosopus femur
Phytosaur partial femur
This femur was crushed at some point in the distant past, and, through lithification, the broken pieces were "glued" back together!
This femur was crushed at some point in the distant past, and, through lithification, the broken pieces were "glued" back together!
January 25, 2025 at 10:52 PM
Phytosaur partial femur
This femur was crushed at some point in the distant past, and, through lithification, the broken pieces were "glued" back together!
This femur was crushed at some point in the distant past, and, through lithification, the broken pieces were "glued" back together!
Alligator Mississippiensis fossils from the Pleistocene of Florida!
December 3, 2024 at 7:53 PM
Alligator Mississippiensis fossils from the Pleistocene of Florida!
Joined the Dallas Paleontology Society on their trip to the Martin Marietta Quarry.
Found some decent sharks teeth from a few different species and several good sized nuggets of pyrite!
I definitely recommend anyone with an interest in paleontology to support and join!
Found some decent sharks teeth from a few different species and several good sized nuggets of pyrite!
I definitely recommend anyone with an interest in paleontology to support and join!
December 1, 2024 at 4:00 PM
Joined the Dallas Paleontology Society on their trip to the Martin Marietta Quarry.
Found some decent sharks teeth from a few different species and several good sized nuggets of pyrite!
I definitely recommend anyone with an interest in paleontology to support and join!
Found some decent sharks teeth from a few different species and several good sized nuggets of pyrite!
I definitely recommend anyone with an interest in paleontology to support and join!
November 30, 2024 at 1:12 AM
An older paper from 2019, but one of the only known instances of phytosaur parental care. The site also appeared to show young living in cohorts.
www.tandfonline.com/doi/abs/10.1...
www.tandfonline.com/doi/abs/10.1...
Taphonomic signatures of a new Upper Triassic phytosaur (Diapsida, Archosauria) bonebed from India: aggregation of a juvenile-dominated paleocommunity
A monotaxic bonebed containing numerous phytosaur specimens is reported from the Upper Triassic Tiki Formation of India. The comprehensive minimum number of individuals is estimated to be 21, which...
www.tandfonline.com
November 20, 2024 at 6:41 AM
An older paper from 2019, but one of the only known instances of phytosaur parental care. The site also appeared to show young living in cohorts.
www.tandfonline.com/doi/abs/10.1...
www.tandfonline.com/doi/abs/10.1...
More phytosaur fossils. Again, from a part of the chinle formation in Arizona!
November 20, 2024 at 12:33 AM
More phytosaur fossils. Again, from a part of the chinle formation in Arizona!
Phytosaur rib, likely cervical, found on a private ranch in the painted desert area of Arizona, a part of the Chinle formation.
November 18, 2024 at 10:37 PM
Phytosaur rib, likely cervical, found on a private ranch in the painted desert area of Arizona, a part of the Chinle formation.
The fact that phytosaurs have no modern relatives and the fact that their behaviors and procreation are still mysterious has helped drive my hypothesis that phytosaurs may have given birth to groups of live young. A hypothesis I hope to prove fully or falsify one day with new finds!
November 18, 2024 at 7:12 PM
The fact that phytosaurs have no modern relatives and the fact that their behaviors and procreation are still mysterious has helped drive my hypothesis that phytosaurs may have given birth to groups of live young. A hypothesis I hope to prove fully or falsify one day with new finds!
Still my favorite phytosaur fossil to look over!
November 18, 2024 at 7:28 AM
Still my favorite phytosaur fossil to look over!