iiinova — where your digital self keeps evolving

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Dr. Brendan Anderson @fossilsndcoffee.bsky.social · 07/05/2024

I collaborated on the snails in short series and had a great time working on these with @franzanth.bsky.social

Snails in short page describing handedness in snails, snail feeding modes, and how snails make shells out of different minerals

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Jo Wolfe, PhD @jopabinia.bsky.social · 07/05/2024

Don't sleep on the crab database as a source for #InsertAnInvert2024! Here are images of all 3 of the suggested true crab species this week: Ixa cylindrus by Ondřej Radosta Stenorhynchus debilis (close enough) by Arthur Anker Ranina ranina by Tin-Yam Chan Explore this website! 🦀🧪

dorsal view of Ixa cylindrus, looks like a round crab but with long tubular projections from the lateral parts of its carapace

photo by Ondřej Radosta

dorsal view of Stenorhynchus debilis. the body is teardrop shaped, with a lengthy pointy rostrum, and is striped vertically. the legs are loooong and spindly

photo by Arthur Anker

dorsal view of Ranina ranina. this species doesn't look like a true crab, because its carapace is elongated and its pleon (abdomen) is sticking out the back like a very skinny lobster's would. the eyestalks are emphasized, as are the wrench-like claws and spade-like legs.

photo by Tin-Yam Chan

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Julianne Zelda Kiely 🌿Commissions open🌿 @palaeojules.bsky.social · 07/05/2024

Early Cretaceous hatchet wasp! Procretevania exquisita, a parasitic wasp from the Yixian Formation of China! #paleoart #wasp #insect #entomology

A pen line drawing of a dumpy looking wasp, with short stubby legs, small wings and a large round abdomen.

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franz @franzanth.bsky.social · 01/05/2024

Quick crab drawing guides that @jopabinia.bsky.social and I made a few years back to get you all started for this month's #InsertAnInvert2024 theme: Carcinization. Fun fact, this was the beginning of the whole "Insert An Invert" series

crab anatomy diagram that covers the basics of the crab anatomy and names of various body parts

diagram that shows the various different shapes of crab claws and how the shapes relate to their lifestyles

diagram showing the various segments of crab legs and how the different leg shapes relate to their lifestyles

diagram showing all the complicated limbs that sprout out from a crab's face

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Veeloxxy Bites @the-episiarch.bsky.social · 01/05/2024

When most people think of the "zombie snail parasite" they think Leucochloridium paradoxum - but that's just one out of ten different species of Leucochloridium. They all have different colours and patterns, this one is called L. passeri. #invertebrate 🧪 dailyparasite.blogspot.com/2023/01/leuc...

Left: Snail infected with Leucochloridium passeri collected from Hemei Township (Changhua County) by Jui-An Lin, photo.
Top right: Labelled L. passeri broodsac.
Bottom right: A trio of L. passeri broodsacs with metacercariae removed from an infected snail.

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Jo Wolfe, PhD @jopabinia.bsky.social · 30/04/2024

The #InverteFest group most closely related to us: tunicates! Yes, they are part of chordates, whether they represent the largest free swimming salp (Thetys vagina) or sessile species (Polycarpa aurata and the colonial Didemnum molle)! 🦑🧪 *check out the amphipods riding the salp

Thetys vagina. Seen swimming through a night time plankton soup, it is several inches long and looks like a transparent blob with some interior structures from anterior to posterior. The gut is yellow/orange.
ALSO there are a bunch of hyperiid amphipods riding on the blob head end!
Screencap from gopro video on my blackwater dive in Tulamben Bali

Funny leathery sock like critter, Polycarpa aurata. It's stuck to the seafloor and has 2 big openings. Mostly light orange with bright purple grooves and some tubercles on the outside
Photo from Seraya, Tulamben Bali

A bunch of Didemnum molle attached to a rope(?) which is overgrown with sea life. There are 20-30 small round individuals in the colony, and one big one that you can see inside the siphons. They are white on the outside and green on the inside
Photo at Seraya, Tulamben Bali

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Julio the Artist @lacerdajulio.bsky.social · 30/04/2024

It's the last day of #InverteFest and I'm working on something with bugs! Kind of.

A poster with lineart of Bug Pókemon from the Sinnoh Region depicted in realistic style.

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Duncan @goblinville.bsky.social · 30/04/2024

It was once believed that you could predict the harshness of an upcoming winter by looking at the stripes of wooly bear caterpillars. A large central brown stripe indicates a mild winter, while a small stripe means it will be harsh 🐛 #InverteFest

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franz @franzanth.bsky.social · 29/04/2024

#InverteFest runs until the end of the month (Tuesday). Keep posting your invertebrate art, plug your merch & service, find some bugs in the wild, do whatever you want. Here's our community science project on iNat if you haven't joined: www.inaturalist.org/projects/inv...

a poster showing 14 different crab species. there's a lanky boi, there's one with serrated claws, another with triangular carapace, a hermit crab in ammonite shell, and so on.

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Saimi Hanma ⚔️ サイミ @saimihanma.northsky.social · 24/04/2024

I finished my April #InsertAnInvert2024 with an Elvis worm just in time for #InverteFest. I LOVED drawing the different marine worms. #SciArt

a large watercolor journal page with watercolor illustrations of 4 different marine worms: a brown knotted up ribbon worm, a fluffy reddish pink and blue feather duster worm protruding from a tube, a purplish blue shinny scale worm and a yellow white and black oval shaped flatworm

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Duncan @goblinville.bsky.social · 30/04/2024

In European folklore, stag beetles were often associated with the devil, and some believed they would carry burning coals in their mandibles to set houses on fire #InverteFest

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Jo Wolfe, PhD @jopabinia.bsky.social · 01/05/2024

Been waiting to deploy my mantis shrimps for #InverteFest! The first two are a cheeky and a a shy individual of Odontodactylus scyllarus, the most beautiful species. The last is a terrible picture of a larval stage somersaulting in blackwater 😍🦑

Full body view of the beautiful peacock mantis shrimp in every color of the rainbow. You see why it's called the peacock as there are bright colored spots on the uropods and on the antennal scales.
Melasti, Tulamben Bali

Another of the same species. This one is shy so it is mostly in a burrow, but its amazing eyes seem entrained on my camera
Melasti, Tulamben Bali

Black water that looks like outer space. In the center is a weird transparent mantis shrimp larva with one pair elongated hooked appendages (these are the smashy ones in adults)

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MagicMetalBird 🐑 @magicmetalbird.com · 01/05/2024

InsertAnInvert2024 Wormification week 3: long, not limbless Fuchsia flatworm (pseudoceros ferrugineus)

a fuchsia flatworm crawling around. It's not very fuchsia in this drawing, which is drawn in blue and shaded with blue halftone. just pretend it's a cyan flatworm, an animal that probably doesn't exist.

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MagicMetalBird 🐑 @magicmetalbird.com · 28/04/2024

InsertAnInvert2024 Wormification week 2: long, not limbless Giant tube worm (riftia pachyptila)

four giant tube worms coming up from the same spot. they're drawn in blue lines and shaded with blue halftone.

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InvertebratePosting @invertposting.bsky.social · 02/05/2024

to include new information. For those that don't wanna wait, I've shared many of my recent projects in the discord - disboard.org/server/12121... Imma be lookin over and sharing a lot of the cool stuff I missed, so I do apologize if I'm fillin your feeds!

disboard.org

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InvertebratePosting @invertposting.bsky.social · 02/05/2024

Ah crap, I've somehow managed to miss most of InverteFest! Been writing several new blogposts and also workin on two large speculative evolution projects, one of which will be posted here real soon. In the meantime, I've updated this one invertposting.blogspot.com/2024/03/the-...

invertposting.blogspot.com

Mesozoic deadfall communities - an ancient ecology

This post is about Mesozoic deadfall communities - think whalefalls, but marine reptiles! The dead bodies of large aquatic animals have a b...

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InvertebratePosting @invertposting.bsky.social · 28/04/2024

Rules for the project, links for resources, and potential pieces of inspiration can be found in the server discord.gg/7bq7Vj9bmt Hope to see ya there!

discord.gg

Join the Bug Nerds Discord Server!

Check out the Bug Nerds community on Discord - hang out with 44 other members and enjoy free voice and text chat.

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InvertebratePosting @invertposting.bsky.social · 28/04/2024

Happy #InverteFest! My discord server is hosting an invetebrate-themed #speculativeevolution project, focusing on invertebrates that might've existed in deep time but didn't fossilize; bring your best hypothetical radiodonts and weirdest cycad pollinators

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Jen C Mars @jencmars.bsky.social · 25/04/2024

A mantis, for #InverteFest Pencils and gouache on 9x12" hotpress paper. #insects

Close up portrait of a green mantis looking directly at the viewer on a soft, out of focus shadowy green background.

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Tom Astle @tjalamont.bsky.social · 25/04/2024

A #TBT pic for #InverteFest - a newly-hatched angle-wing katydid (Microcentrum sp.) on my fingertip. I don't put myself in the picture that often, but sometimes it's fun for scale. Antennae for days. 🐙 🌿

A macro photo of a tiny, newly-hatched green katydid perched on a fingertip against a blue-green background.

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Stanton @stanton.bsky.social · 24/04/2024

The creature on the cover of "17 Defunct Arthropods" is Marmacuma samimei, an extinct hooded shrimp from Late Pleistocene Turkey, where it lived in a hypersaline lagoon until its home reconnected with the Black Sea, then died out due to fatally drastic salinity changes #InverteFest

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Stanton @stanton.bsky.social · 25/04/2024

The trilobite on the cover of my Brief Primer of Trilobites is the legendary Terataspis grandis, a gigantic lichid trilobite from Early Devonian New York and Ontario. It's known from fragments that suggest an adult animal of at least 60 centimeters in length. #InverteFest

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Mike Z @mikez.bsky.social · 25/04/2024

Making our way to #InverteFest.🐌 #guildeleven #art

A giant snail with structures and windows on its shell, accompanied by octopuses, traversing choppy waters.

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

That's about it; like I said check the blog for more information! Happy InverteFest!

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

Sea Monsters avoids this depiction all together, it simply has em mouth-up, floating after being knocked loose. Very nice to see an extinct echinoderm in paleomedia!!

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

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...

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

A juvenile is seen later on, swimming amongst a group of Uintacrinus. Uintacrinus is an odd crinoid because it seems to lack a stalk.

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

The other cephalopod, the shell-less Tusoteuthis has not aged well at all; modern research suggests a vaguely Humboldt Squid-like appearance. Tusoteuthis is also no longer regarded as valid, specimens attributed to the genus are either undiagonstic or belong to Enchoteuthis.

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

as suggested by many mass associations of remains. They're depicted as being bioluminescent, which isn't directly supported by the fossil record, but isn't unlikely especially because coeloids (their closest relatives) tend to have that ability.

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

Overall the coiled ones were reasonable for the time, while the other ammonites, straight-shelled Baculites still hold up pretty well. Baculites definitely spawned and lived close to the seabed, something backed up by isotope studies , and in very large numbers,

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

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

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

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

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

This thread will cover the main four, but you can read about the other two, get additional info on the ones covered here, and links to sources in the blogpost invertposting.blogspot.com/2024/04/the-...

invertposting.blogspot.com

The Invertebrates of Sea Monsters - A Prehistoric Adventure

This post is my third entry in my “Invertebrates in Paleomedia” series, covering extinct invertebrates featured in documentaries, giving an ...

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InvertebratePosting @invertposting.bsky.social · 25/04/2024

Happy #InverteFest! Here's another thread focusing on the invertebrates in paleo documentaries, this time the amazing Sea Monsters - A Prehistoric Adventure! Six species are featured in the documentary – coiled ammonites, Baculites, Tusoteuthis, Uintacrinus, jellyfish, and Inoceramid clams.

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franz @franzanth.bsky.social · 25/04/2024

#InverteFest is going strong. I'm compiling the artists who are selling things or looking to connect with clients under this post. Go support them! Feel free to add yourself.

poster design with 12 nudibranch species of various shapes and colors. some are round, others long, frilly, or branched

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Stanton @stanton.bsky.social · 24/04/2024

In celebration of #InverteFest, go buy my coloring book, "17 Defunct Arthropods" and leave a 5 star review! It features various non-trilobite arthropods both obscure and famous, and all defunct www.amazon.com/Defunct-Arth...

amazon.com

Amazon.com: 17 Defunct Arthropods: Volume I: 9798668318414: Fink V, Mr Stanton Fordice: Libros

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Lindsay Lindhult, PhD | Science Illustrator & Arthropod Artist @lindzeamays.bsky.social · 25/04/2024

Look how cute they are together! Sketches of adult & nymph blunt nosed leafhoppers (Limotettix vaccinii). Adorable little problems for cranberry growers. Onward to refining & painting! I want to get these done before a research talk in May. #invertefest #invertfest #entomology #SciArt #art

Adult and nymph blunt nosed leafhopper sketches on an iPad.

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🦋 Alie of the Woods 🦋 (is looking at lichen in the cemetery) @humanbyweight.bsky.social · 24/04/2024

(I'm still fussing with it here and there, but) Here is the official cover reveal for my upcoming book, THE CICADAS OF NORTH AMERICA! Preorders are available NOW at www.OwlflyLLC.com/publications !!!

The cover-in-progress for my upcoming book, "The Cicadas of North America". The cover shows the title in the top-center, with "Owlfly Publishing" along the top edge and "written & illustrated by Chris Alice Kratzer" at the bottom. There are 22 cicadas of various shapes and sizes arranged radially out from the center. Their colors range from brilliant reddish-orange to deep black, sandy yellow, forest green, and foamy turquoise. It seems like someone really put a lot of effort into this!

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Lindsay Lindhult, PhD | Science Illustrator & Arthropod Artist @lindzeamays.bsky.social · 24/04/2024

I don't usually share rough sketches but here we are at #invertefest. So why not. Blunt nosed leafhopper drawing for my own research. Excited to paint its fabulous leopard print wings! #SciArt #entomology

Rough drawing of a blunt nosed leafhopper on an iPad.

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

I've also discussed this in my Discord, where I'm gonna start drafting the Sea Monsters article soon. We're also figuring out movie nights and other events, hop on in if that intrigues ya! discord.gg/cqnxdWbmBK

discord.gg

Join the Bug Nerds Discord Server!

Check out the Bug Nerds community on Discord - hang out with 39 other members and enjoy free voice and text chat.

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

If you want to read about those, see direct sources, read about what the companion book covers, and so on I'd suggest reading my blog post on the topic, which covers that and more! There's also an article in this vein on the Walking With... series invertposting.blogspot.com/2024/04/the-...

invertposting.blogspot.com

The Invertebrates of Life On Our Planet

This post is the second of my "Invertebrates in Paleomedia" series, where I look at major depictions of extinct invertebrates and discuss th...

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

Unfortunately, this is the last prehistoric invert, although extant ones are used as analogues or to depict events.

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

The mating posture pulls from extant millipedes mating, which is supported by the fossil record - trackways from Scotland preserve traces of a similar mating posture. This scene is above and away the best in the series, it's stunningly beautiful and very well done scientifically.

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

In extant giant pill-millipedes males attempting to mate stridulate when approaching females so as not to trigger the "rolling-in reflex", where a millipede instinctive curls into a ball at the first sign of danger

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

There's also an Arthropleura curled up into a ball, only coaxed out of this position by stridulation (rubbing parts of the shell together to "sing"), I can't understate how much I love this! Millipedes today don't have hearing organs, so instead rely on detecting vibrations

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

The behavior is beautifully done too, the Arthropleura bumping into the log directly pulls from one of the consultant's, Dr. Tom Fletcher's, own millipedes he was in charge of - one of which would keep bumping into a pencil on his desk.

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InvertebratePosting @invertposting.bsky.social · 24/04/2024

The Arthropleura model is beautiful! It does not have giant centipede-like fangs, eyes on the collum (the plate before the head on millipedes), and does have a seemingly triangular telson (tail segment) - incredibly up to date and accurate!

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