InvertebratePosting
@invertposting.bsky.social
Bug nerds posting about invertebrates a few times a week
invertposting.blogspot.com/
invebrateposting@gmail.com for inquiries or suggestions
Banner by @serpenillus.bsky.social
invertposting.blogspot.com/
invebrateposting@gmail.com for inquiries or suggestions
Banner by @serpenillus.bsky.social
Some older interpretations suggest that its calyx was filled with gas and it floated along, dredging its arms along the seafloor, but this is likely untrue, as summarized below in this blogpost by Christopher Taylor - coo.fieldofscience.com/2010/02/crin...
April 25, 2024 at 5:41 PM
Some older interpretations suggest that its calyx was filled with gas and it floated along, dredging its arms along the seafloor, but this is likely untrue, as summarized below in this blogpost by Christopher Taylor - coo.fieldofscience.com/2010/02/crin...
The ammonites, or at least the coiled ones, should have eight arms and two long hooked tentacles, similar to those found in squid.
These ammonites also spew ink when threatened, something that has been questioned in recent years, as seen in Klug and Lehmann, 2015
These ammonites also spew ink when threatened, something that has been questioned in recent years, as seen in Klug and Lehmann, 2015
April 25, 2024 at 5:36 PM
The ammonites, or at least the coiled ones, should have eight arms and two long hooked tentacles, similar to those found in squid.
These ammonites also spew ink when threatened, something that has been questioned in recent years, as seen in Klug and Lehmann, 2015
These ammonites also spew ink when threatened, something that has been questioned in recent years, as seen in Klug and Lehmann, 2015
Starting off with the ammonites - they have an operculum, which we know they did not have based on fossil evidence and phylogeny. This is an old idea, based on the aptychus, as discussed below
April 25, 2024 at 5:35 PM
Starting off with the ammonites - they have an operculum, which we know they did not have based on fossil evidence and phylogeny. This is an old idea, based on the aptychus, as discussed below
Its anatomy is quite poor, as shown in the image below, and its behavior is very inaccurate.
Anomalocaris would not be capable of processing hard prey - unable to manipulate it with its front appendages, nor eat it with its mouth cone. It instead was a suction feeder, hunting soft-bodied prey
Anomalocaris would not be capable of processing hard prey - unable to manipulate it with its front appendages, nor eat it with its mouth cone. It instead was a suction feeder, hunting soft-bodied prey
April 24, 2024 at 6:16 PM
Its anatomy is quite poor, as shown in the image below, and its behavior is very inaccurate.
Anomalocaris would not be capable of processing hard prey - unable to manipulate it with its front appendages, nor eat it with its mouth cone. It instead was a suction feeder, hunting soft-bodied prey
Anomalocaris would not be capable of processing hard prey - unable to manipulate it with its front appendages, nor eat it with its mouth cone. It instead was a suction feeder, hunting soft-bodied prey
I've had the privilege in participating in a speculative evolution project as of late and my entries have spun off into their own little thing too.
April 16, 2024 at 10:04 PM
I've had the privilege in participating in a speculative evolution project as of late and my entries have spun off into their own little thing too.
Prehistoric Planet is also in the pipeline. I'm also going to share snippets of a personal Prehistoric Planet-related project I've been working on and discuss the science behind those
April 16, 2024 at 10:04 PM
Prehistoric Planet is also in the pipeline. I'm also going to share snippets of a personal Prehistoric Planet-related project I've been working on and discuss the science behind those
Also been working on sketches and art pieces for some big threads, hopefully of use to paleoartists, but these are a bit far away
April 16, 2024 at 10:03 PM
Also been working on sketches and art pieces for some big threads, hopefully of use to paleoartists, but these are a bit far away
And many, many more topic that I intend to cover in the very near future
April 16, 2024 at 10:02 PM
And many, many more topic that I intend to cover in the very near future
I've got a few threads that are maybe halfway done that I'm slowly working on completing, those are the priority at the moment
April 16, 2024 at 10:01 PM
I've got a few threads that are maybe halfway done that I'm slowly working on completing, those are the priority at the moment
Caster gave an immensely detail breakdown, comparing and reinterpreting every little detail to be sure. He also further proved that the Paramphibius deposits were marine, and that the tracks were incredibly similar to those of mating/competing horseshoe crabs
April 12, 2024 at 5:38 PM
Caster gave an immensely detail breakdown, comparing and reinterpreting every little detail to be sure. He also further proved that the Paramphibius deposits were marine, and that the tracks were incredibly similar to those of mating/competing horseshoe crabs
The tracks certainly looked shockingly like those of a vertebrate, but that's because tracks from the "pusher legs" became heavily distorted, while other traces were too delicate to be preserved, or simply misinterpreted based on the previous misconception
April 12, 2024 at 5:38 PM
The tracks certainly looked shockingly like those of a vertebrate, but that's because tracks from the "pusher legs" became heavily distorted, while other traces were too delicate to be preserved, or simply misinterpreted based on the previous misconception
Happy #FossilFriday!
These are the tracks of a waddling, maybe bipedal amphibian. The tracks were clearly a monumental discovery for our understanding of how fish came onto land and the evolution of terrestrial locomotion...
...except none of that is actually the case
These are the tracks of a waddling, maybe bipedal amphibian. The tracks were clearly a monumental discovery for our understanding of how fish came onto land and the evolution of terrestrial locomotion...
...except none of that is actually the case
April 12, 2024 at 5:35 PM
Happy #FossilFriday!
These are the tracks of a waddling, maybe bipedal amphibian. The tracks were clearly a monumental discovery for our understanding of how fish came onto land and the evolution of terrestrial locomotion...
...except none of that is actually the case
These are the tracks of a waddling, maybe bipedal amphibian. The tracks were clearly a monumental discovery for our understanding of how fish came onto land and the evolution of terrestrial locomotion...
...except none of that is actually the case
Thirteen miles south of Marienville, PA, on the side of a dirt road sat a bizarre fossil, to bediscovered by Mike Kosanki over the weekend of November 19th 1948. Mike made casts and sent them to the Carnegie Museum where his brother, James Kosanki, was a preparator.
April 11, 2024 at 11:16 PM
Thirteen miles south of Marienville, PA, on the side of a dirt road sat a bizarre fossil, to bediscovered by Mike Kosanki over the weekend of November 19th 1948. Mike made casts and sent them to the Carnegie Museum where his brother, James Kosanki, was a preparator.
Small ammendment/update to yesterday's thread, here are the actual images of the arrow squid interacting with a shark
bsky.app/profile/inve...
bsky.app/profile/inve...
April 10, 2024 at 2:16 PM
Small ammendment/update to yesterday's thread, here are the actual images of the arrow squid interacting with a shark
bsky.app/profile/inve...
bsky.app/profile/inve...
Research published in October of 2023 suggests predatory interactions between deep sea squid, potentially even the giant squid, and great white sharks around Guadalupe Island, Mexico.
April 9, 2024 at 6:34 PM
Research published in October of 2023 suggests predatory interactions between deep sea squid, potentially even the giant squid, and great white sharks around Guadalupe Island, Mexico.
Happy #FossilFriday!
This is MPEF-PV 3137, a titanosaur egg from Cretaceous Patagonia. This egg is quite special as there are eight wasp cocoons inside (known as MPEF-IC 517-524)
This is MPEF-PV 3137, a titanosaur egg from Cretaceous Patagonia. This egg is quite special as there are eight wasp cocoons inside (known as MPEF-IC 517-524)
April 5, 2024 at 7:42 PM
Happy #FossilFriday!
This is MPEF-PV 3137, a titanosaur egg from Cretaceous Patagonia. This egg is quite special as there are eight wasp cocoons inside (known as MPEF-IC 517-524)
This is MPEF-PV 3137, a titanosaur egg from Cretaceous Patagonia. This egg is quite special as there are eight wasp cocoons inside (known as MPEF-IC 517-524)
Furthermore, Venomoth is cute and serviceable as an early game bug design.
April 5, 2024 at 4:46 PM
Furthermore, Venomoth is cute and serviceable as an early game bug design.
Looking at the code of the games themselves, Venomoth's index number is very far removed from Caterpie. Caterpie's line is all right next to each other.
April 5, 2024 at 4:44 PM
Looking at the code of the games themselves, Venomoth's index number is very far removed from Caterpie. Caterpie's line is all right next to each other.
Butterfree has much more in common with Caterpie than Venomoth does.
April 5, 2024 at 4:44 PM
Butterfree has much more in common with Caterpie than Venomoth does.
These are partially due to hardware restrictions, forcing designs to be simplified or modified in order to fit in a 56x56 sprite. This design simplification is even evident in Venomoth itself, spots on the back of its wings were removed.
April 5, 2024 at 4:43 PM
These are partially due to hardware restrictions, forcing designs to be simplified or modified in order to fit in a 56x56 sprite. This design simplification is even evident in Venomoth itself, spots on the back of its wings were removed.
These are all just very clear design trends; stylistic choices that are repeated in multiple designs. This is evident elsewhere in Kanto - multiple simple bodyplans are reused repeatedly.
April 5, 2024 at 4:43 PM
These are all just very clear design trends; stylistic choices that are repeated in multiple designs. This is evident elsewhere in Kanto - multiple simple bodyplans are reused repeatedly.
Weedle also has a similar nose/mouth to Butterfree. Bugs with "horns" are also pretty commonplace - look at Yanma and Scizor, for example.
April 5, 2024 at 4:42 PM
Weedle also has a similar nose/mouth to Butterfree. Bugs with "horns" are also pretty commonplace - look at Yanma and Scizor, for example.
Butterfree and Venonat do share a lot of features, but many Bug types, especially in the first two generations have similar features. Paras and Ledyba have similar eyes to Venomoth, while Ledian generally has a similar bodyplan to Butterfree.
April 5, 2024 at 4:42 PM
Butterfree and Venonat do share a lot of features, but many Bug types, especially in the first two generations have similar features. Paras and Ledyba have similar eyes to Venomoth, while Ledian generally has a similar bodyplan to Butterfree.
Were Venomoth and Butterfree really swapped during the development of Pokémon Red and Green? I’d argue no; this theory relies on very shaky evidence that at times completely ignores the context of Red and Green’s development.
April 5, 2024 at 4:42 PM
Were Venomoth and Butterfree really swapped during the development of Pokémon Red and Green? I’d argue no; this theory relies on very shaky evidence that at times completely ignores the context of Red and Green’s development.
It appears that these ammonites died but did not immediately lose all buoyancy, instead slowly losing it and sinking, being propelled forward simultaneously. The shells may have also rotated as they came into contact with the seafloor
Art by James McKay
Art by James McKay
March 29, 2024 at 6:23 PM
It appears that these ammonites died but did not immediately lose all buoyancy, instead slowly losing it and sinking, being propelled forward simultaneously. The shells may have also rotated as they came into contact with the seafloor
Art by James McKay
Art by James McKay