TheSirenLord
@thesirenlord.bsky.social
Indie Artist/Writer who enjoys Paleontology, speculative evolution, and fantasy world building.
Mermaid enthusiast
Deviantart: https://www.deviantart.com/thesirenlord
My Books: Amazon.com: Saga of Mirria: 9798856344003:
Mermaid enthusiast
Deviantart: https://www.deviantart.com/thesirenlord
My Books: Amazon.com: Saga of Mirria: 9798856344003:
Here are the close relatives of the modern nautilus
July 23, 2025 at 12:01 PM
Here are the close relatives of the modern nautilus
I have such a backlog of things to post. So here are some Trigonoceratoid nautiloids
July 7, 2025 at 4:45 PM
I have such a backlog of things to post. So here are some Trigonoceratoid nautiloids
Good art, though maybe I'm wrong but didn't Eugeneodonts lack claspers? I could be wrong though I haven't researched them as much as I have jawless fish
June 20, 2025 at 6:41 PM
Good art, though maybe I'm wrong but didn't Eugeneodonts lack claspers? I could be wrong though I haven't researched them as much as I have jawless fish
Here are some Aipoceratoid Nautilidsvery odd, had some very unusual growths
June 18, 2025 at 11:52 AM
Here are some Aipoceratoid Nautilidsvery odd, had some very unusual growths
Here are some more derived nautilids of the Clydonautiloidea superfamily Man I have such a backlog
June 11, 2025 at 7:06 PM
Here are some more derived nautilids of the Clydonautiloidea superfamily Man I have such a backlog
More derived Nautilids
of the Tainoceratoid superfamily. Which is the same as the last one perhaps I should have clarified that but I wanted to just post something
of the Tainoceratoid superfamily. Which is the same as the last one perhaps I should have clarified that but I wanted to just post something
May 15, 2025 at 10:32 AM
More derived Nautilids
of the Tainoceratoid superfamily. Which is the same as the last one perhaps I should have clarified that but I wanted to just post something
of the Tainoceratoid superfamily. Which is the same as the last one perhaps I should have clarified that but I wanted to just post something
Here are some early Nautilida ie the group that includes modern nautiluses
May 14, 2025 at 1:28 AM
Here are some early Nautilida ie the group that includes modern nautiluses
Here's some art I got such a backlog here are some more onocerids
May 14, 2025 at 1:25 AM
Here's some art I got such a backlog here are some more onocerids
In this picture we see the Oncocerida. Which were an order of small cephalopods that eventually gave rise to the order Nautilida that includes the modern Nautilus. They lived from the Early Ordovician until the Mississippian stage.
January 25, 2024 at 12:40 PM
In this picture we see the Oncocerida. Which were an order of small cephalopods that eventually gave rise to the order Nautilida that includes the modern Nautilus. They lived from the Early Ordovician until the Mississippian stage.
Ok it's a tie between
these.
these.
January 24, 2024 at 12:23 PM
Ok it's a tie between
these.
these.
Here are yet more Tarphycerid cephalopods, which independently evolved coiled shells from both later Nautiloids and Ammonites
January 21, 2024 at 2:09 PM
Here are yet more Tarphycerid cephalopods, which independently evolved coiled shells from both later Nautiloids and Ammonites
More Tarphycerid cephalopods which seem to converged on the heteromorph ammonites we'd see much later
November 6, 2023 at 4:59 PM
More Tarphycerid cephalopods which seem to converged on the heteromorph ammonites we'd see much later
In this picture we see the Tarphycerids the first cephalopods to develop coiled shells for superior swimming speed and agility before Nautiloids and ammonoids. Yet the End Ordovidian extinction castrated them before they could succeed and lingered in the background until the end Devonian.
October 27, 2023 at 11:25 PM
In this picture we see the Tarphycerids the first cephalopods to develop coiled shells for superior swimming speed and agility before Nautiloids and ammonoids. Yet the End Ordovidian extinction castrated them before they could succeed and lingered in the background until the end Devonian.
Straight shells have been seen in multiple lineages
one of these are the Psuedorthoderida. Clinging onto the Triassic and with the largest species growing 8.2 feet they were last great "Orthocones
one of these are the Psuedorthoderida. Clinging onto the Triassic and with the largest species growing 8.2 feet they were last great "Orthocones
October 21, 2023 at 8:08 PM
Straight shells have been seen in multiple lineages
one of these are the Psuedorthoderida. Clinging onto the Triassic and with the largest species growing 8.2 feet they were last great "Orthocones
one of these are the Psuedorthoderida. Clinging onto the Triassic and with the largest species growing 8.2 feet they were last great "Orthocones
Here's some old art of the odd Discosorids which lasted from the Middle Ordovician to end Devonian. Notable for their oddly constricted shells. Quite strange looking.
October 19, 2023 at 6:48 PM
Here's some old art of the odd Discosorids which lasted from the Middle Ordovician to end Devonian. Notable for their oddly constricted shells. Quite strange looking.
Sorry I haven't posted here focusing on my webcomic and my next book.
Anyway here is a picture depicting the Actinocerida. An obscure group that lived from the Ordovician to Devonian dying out due to competition from jawed fish and more compact nautiloids and ammonites.
Anyway here is a picture depicting the Actinocerida. An obscure group that lived from the Ordovician to Devonian dying out due to competition from jawed fish and more compact nautiloids and ammonites.
October 11, 2023 at 11:35 AM
Sorry I haven't posted here focusing on my webcomic and my next book.
Anyway here is a picture depicting the Actinocerida. An obscure group that lived from the Ordovician to Devonian dying out due to competition from jawed fish and more compact nautiloids and ammonites.
Anyway here is a picture depicting the Actinocerida. An obscure group that lived from the Ordovician to Devonian dying out due to competition from jawed fish and more compact nautiloids and ammonites.
Here's some more old Paleoart. This time we cover the larger members of the Endocerids, the first cephalopods to get large, the first to have the recurring straight shells, and the dominent predators of the Ordovician. They were some of the largest with specimens over 20 feet
October 3, 2023 at 7:33 PM
Here's some more old Paleoart. This time we cover the larger members of the Endocerids, the first cephalopods to get large, the first to have the recurring straight shells, and the dominent predators of the Ordovician. They were some of the largest with specimens over 20 feet
Some more old paleoart This time of the smaller members of the Endocerida. Which were the first cephalopod groups to be widely successful in the oceans of Earth.
October 2, 2023 at 11:48 PM
Some more old paleoart This time of the smaller members of the Endocerida. Which were the first cephalopod groups to be widely successful in the oceans of Earth.
Some more old paleoart of the basal cephalopod grouping called the Ellesmerocerida. A very strange group that lived from the Upper Cambian to upper Ordovician
October 1, 2023 at 1:14 PM
Some more old paleoart of the basal cephalopod grouping called the Ellesmerocerida. A very strange group that lived from the Upper Cambian to upper Ordovician
Here's some old paleoart of the first non controversial cephalopod, Plectronoceras
September 30, 2023 at 11:07 AM
Here's some old paleoart of the first non controversial cephalopod, Plectronoceras
Here's some more old paleoart I made this time of basal cephalopods
September 29, 2023 at 11:01 AM
Here's some more old paleoart I made this time of basal cephalopods
No idea if I should start posting my webcomic here as well
Please respond if you think I should post those but as for now here's some old Paleoart of Monoplacophorans the snail like Ancestors of the Cephalopods.
Please respond if you think I should post those but as for now here's some old Paleoart of Monoplacophorans the snail like Ancestors of the Cephalopods.
September 28, 2023 at 6:31 PM
No idea if I should start posting my webcomic here as well
Please respond if you think I should post those but as for now here's some old Paleoart of Monoplacophorans the snail like Ancestors of the Cephalopods.
Please respond if you think I should post those but as for now here's some old Paleoart of Monoplacophorans the snail like Ancestors of the Cephalopods.