Stephan Spiekman
@stephanspiekman.bsky.social
Postdoctoral Researcher @smnstuttgart.bsky.social. Vertebrate palaeontologist studying Triassic reptile evolution.
@stereospondyl.bsky.social, you're welcome!
November 7, 2025 at 5:10 PM
@stereospondyl.bsky.social, you're welcome!
Reposted by Stephan Spiekman
BIG Congratulations to @stephanspiekman.bsky.social and colleagues for a once in a lifetime publication and thank sooo very much for confiding in me to illustrate this magnificent animal. Here is the link to the Nature paper: https://www.nature.com/articles/s41586-025-09167-9
July 23, 2025 at 3:36 PM
BIG Congratulations to @stephanspiekman.bsky.social and colleagues for a once in a lifetime publication and thank sooo very much for confiding in me to illustrate this magnificent animal. Here is the link to the Nature paper: https://www.nature.com/articles/s41586-025-09167-9
Reposted by Stephan Spiekman
Herzlichen Glückwunsch an Sie und Ihr Team, lb. Herr Spiekmann. Die fesche Mirasaura hat es dann gestern ja sogar in die 20:15-Tagesschau geschafft, heute in die Süddeutsche
www.sueddeutsche.de/wissen/miras...
www.sueddeutsche.de/wissen/miras...
Mirasaura grauvogeli: Fossil verändert Verständnis von Reptilien und Federn
Ein 247 Millionen Jahre altes Fossil aus Frankreich zeigt: Reptilienhaut kann mehr als gedacht - nämlich auch Federn bilden, die keine sind.
www.sueddeutsche.de
July 24, 2025 at 6:48 AM
Herzlichen Glückwunsch an Sie und Ihr Team, lb. Herr Spiekmann. Die fesche Mirasaura hat es dann gestern ja sogar in die 20:15-Tagesschau geschafft, heute in die Süddeutsche
www.sueddeutsche.de/wissen/miras...
www.sueddeutsche.de/wissen/miras...
Reposted by Stephan Spiekman
The feature of the Smithsonian on Mirasaura is here
www.smithsonianmag.com/smithsonian-...
www.smithsonianmag.com/smithsonian-...
This Surprising Ancient Reptile Had a Colorful, Corrugated Sail on Its Back. New Research Suggests It Was Used to Communicate
A 247-million-year-old fossil from a German natural history museum reveals the secrets of Mirasaura
www.smithsonianmag.com
July 24, 2025 at 8:34 PM
The feature of the Smithsonian on Mirasaura is here
www.smithsonianmag.com/smithsonian-...
www.smithsonianmag.com/smithsonian-...
We found melansomes in the crest. Their shape tells us about the tissue type but can also inform on color patterns. In our case, we could only sample a small section, and it revealed a darker, brownish color. The reconstruction of the whole crest is an artist impression, not hard scientific data
July 25, 2025 at 1:08 PM
We found melansomes in the crest. Their shape tells us about the tissue type but can also inform on color patterns. In our case, we could only sample a small section, and it revealed a darker, brownish color. The reconstruction of the whole crest is an artist impression, not hard scientific data
Indeed, bone can be excluded. We also exclude blood vessels. This tissue would have been made up of keratinous dead cells, as are hairs, feathers, and the outer layers of scales. The central ridge is likely some sort of differentiation of the same tissue, but it's hard to know what or how for sure.
July 25, 2025 at 1:04 PM
Indeed, bone can be excluded. We also exclude blood vessels. This tissue would have been made up of keratinous dead cells, as are hairs, feathers, and the outer layers of scales. The central ridge is likely some sort of differentiation of the same tissue, but it's hard to know what or how for sure.
Possibly, although these isolated specimens were never considered to be plant remains. They looked too different. Nobody really knew what they were, but they were at some point tentatively identified as the remains of shark egg capsules!
July 25, 2025 at 12:36 PM
Possibly, although these isolated specimens were never considered to be plant remains. They looked too different. Nobody really knew what they were, but they were at some point tentatively identified as the remains of shark egg capsules!
I definitely will. There's a good chance that'll happen. :)
July 24, 2025 at 10:11 PM
I definitely will. There's a good chance that'll happen. :)