>
shop.seibertron.com amazon.seibertron.com Facebook Twitter X YouTube Pinterest Instagram Myspace LinkedIn Patreon Podcast RSS
This page runs on affiliate links — your clicks may earn us a few Shanix. Want the full transmission? Roll out to our Affiliate Disclosure.

New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Wednesday, July 16th, 2025 1:44PM CDT

Categories: Site News, Toy News, Knock Offs
Posted by: Seibertron   Views: 3,308

Topic Options: View Discussion · Sign in or Join to reply

Robosaur Triceratops — Vintage Knock-Off Mystery

We don’t normally feature knock-offs or third-party products here on Seibertron.com, but every now and then a piece of Transformers-adjacent history shows up that’s too quirky to ignore. This vintage oddity — which we’re calling Robosaur Triceratops — definitely earns that distinction.

This toy is a poor-quality knock-off of the original G1 Dinobot Slag, sold under the product line name Robosaur, with the tagline: "A futuristic dinosaur that changes into a powerful robot."

We don’t know the manufacturer or exact origin of this item, but it was likely released sometime in the 1980s (or possibly 1990s). The packaging itself simply calls it Triceratops, while encouraging collectors to “Collect all these other exciting changing robots!” — showing off knock-off versions of Grimlock (“Tyranosaurus”) and Sludge (“Brontosaur”) on the back of the box. It may also have been marketed in some regions under the Dinosaur Robo name, but clear information is scarce.

This figure is clearly a low‑end reproduction of the Dinobot mold, sporting some unique colors and several cost‑cutting oddities — like having no face, no lower dinosaur jaw, and even no hands. We thought this vintage knock‑off was too quirky not to share, both as a curiosity and a conversation starter. If you know more about its origins — who manufactured it, where it was sold, or how it connects to other KO lines — we invite you to share your insights or speculation in the comments on the Energon Pub forums.

--------------------------------------------------

Gallery:
Robosaur Triceratops Gallery — Knock-offs > Dinobots

G1 1985 Dinobot Galleries: Grimlock, Slag, Sludge, Snarl, and Swoop

And for more G1 knock-offs over the years (but the shadier ones that look identical):
KO Transformers Galleries

--------------------------------------------------

Gallery Preview:

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

Transformers News: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag)

--------------------------------------------------

What do you think? Is Robosaur Triceratops just a cheap curiosity, or does it have a story waiting to be uncovered? Share your knowledge, theories, or even memories of seeing one of these in the wild in the discussion below!

News Search

Got Transformers News? Let us know here!

Re: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag) (2192342)
Posted by TF-fan kev777 on July 17th, 2025 @ 7:18pm CDT
That thing is so weird and I actually love it, thanks for sharing. Just weirdness all over the place, like calling it a triceratops for not giving it any of the 3 horns that make up the tri part of the name and giving it back scale/plates like a stegosaurus.
Re: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag) (2192343)
Posted by Platypus Prime on July 17th, 2025 @ 7:46pm CDT
I finally registered after years of lurking just for this!

I had one, or one very similar! I was about eight, which would put it around 1987 or 88 I think? If it's not the same bot it's awfully close. The box was different though. I remember using it AS my Slag (and only Dinobot). There was also a knockoff Starscream Jet from the same people with odd stabby bits on the fins. I remember being annoyed that there was no lower jaw, though I'd put marbles in the chest compartment. The lack of fists was the most annoying, though, as the super-thin pegs that held the sword in place snapped early, but the gun lasted a long time.
Re: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag) (2192347)
Posted by Sabrblade on July 17th, 2025 @ 9:55pm CDT
TF-fan kev777 wrote:That thing is so weird and I actually love it, thanks for sharing. Just weirdness all over the place, like calling it a triceratops for not giving it any of the 3 horns that make up the tri part of the name and giving it back scale/plates like a stegosaurus.
So it's instead a "Stegoceratops". ;)
Re: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag) (2192349)
Posted by megatran on July 17th, 2025 @ 10:55pm CDT
Robosaur Bicerotops looks awesome.

I love the fact the mold allows for a lower jaw but "nope, f**k it, the kids can do without it" attitude.

I don't mind the 'face' or lack thereof. It oozes alien robot.

What is in keeping with G1 era (even today actually) is the box photography showing beige colored shoulders in alt mode but the toy is actually grey. Haha. I love it!
Re: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag) (2192360)
Posted by Emerje on July 18th, 2025 @ 11:30am CDT
Seibertron wrote:Purple Seaspray is a known variant.

Oh, so this is one of those rumored Hasbro employee Christmas figures then. I remember reading about the Beachcomber one, but checking TFWiki they suggest Seaspray is the same case. But I also see some MOC purple Seasprays on eBay so I guess I'm not actually helping at all. :lol:

Emerje
Re: New Gallery: Robosaur Triceratops (aka KO G1 Dinobot Slag) (2192440)
Posted by shankz on July 21st, 2025 @ 4:41pm CDT
I am 99% positive a kid from my neighborhood when I was a kid had that Robosaur Brontosaurus. I remember him having a knockoff Sludge that had an orange head. If that's the case, these would have been when the Dinobots came out (1985-1986).

[ Incoming message. Source unknown. ] No Signal - Please Stand By [ Click to attempt signal recovery... ]


Transformers and More @ The Seibertron Store

Visit shop.seibertron.com to buy "Transformers Metal Earth Last Knight OPTIMUS PRIME Color Steel Model Kit New"
Transformers Metal ...
Visit shop.seibertron.com to buy "Transformers Legacy United Animated Bumblebee Deluxe Class Hasbro 2024 New"
Transformers Legac ...
Visit shop.seibertron.com to buy "SHOCKWAVE Transformers Studio Series Core Class Bumblebee Hasbro 2022 New"
SHOCKWAVE Transfor ...
Visit shop.seibertron.com to buy "Transformers The Last Knight Optimus Prime Titan Changer 4 Step Hasbro 250203A"
Transformers The L ...
Visit shop.seibertron.com to buy "World's Smallest Transformers BUMBLEBEE 1.25" Micro Action Figure Authentic New"
World's Smallest T ...
Visit shop.seibertron.com to buy "BUMBLEBEE Transformers Studio Series 116 Deluxe One VW Beetle Hasbro 2025 New"
BUMBLEBEE Transfor ...
Visit shop.seibertron.com to buy "LASER OPTIMUS PRIME Transformers Legacy United Leader G2 Universe 2024 New"
LASER OPTIMUS PRIM ...
Visit shop.seibertron.com to buy "Transformers Legacy United Optimus Prime Deluxe Class G1 Hasbro 2024 New"
Transformers Legac ...
Visit shop.seibertron.com to buy "Transformers Buzzworthy Bumblebee Legacy Silverstreak Deluxe Class 2022 New"
Transformers Buzzw ...
Visit shop.seibertron.com to buy "OPTIMUS PRIME Transformers Studio Series 112 Deluxe Transformers One Hasbro New"
OPTIMUS PRIME Tran ...
Visit shop.seibertron.com to buy "B-127 / BUMBLEBEE Transformers Studio Series Deluxe Transformers One Hasbro New"
B-127 / BUMBLEBEE ...
Visit shop.seibertron.com to buy "Transformers Studio Series 86-29 Bumblebee Animated Movie Deluxe Hasbro 2024 New"
Transformers Studi ...
Visit shop.seibertron.com to buy "LASERBEAK Transformers Studio Series Core Class Pink Bumblebee Hasbro 2022 New"
LASERBEAK Transfor ...
Visit shop.seibertron.com to buy "Rescan OPTIMUS PRIME Transformers Rescue Bots Academy Playskool Racing Truck New"
Rescan OPTIMUS PRI ...
These are affiliate links. We may earn a commission.
Details subject to change. See listing for latest price and availability.

Featured Products on Amazon.com

Buy "Transformers Authentics Megatron" on AMAZON
Buy "Transformers Attacker 15 Kramer Action Figure" on AMAZON
Buy "Transformers Studio Series 07 Leader Class Movie 4 Grimlock" on AMAZON
Buy "Transformers Generations Titans Return Deluxe Windblade and Scorchfire" on AMAZON
Buy "Transformers Generations Titans Return Titan Class Trypticon" on AMAZON
Buy "Transformers Generations Titans Return Deluxe Misfire and Aimless" on AMAZON
Buy "Transformers: Generations Power of The Primes Deluxe Class Dinobot Swoop" on AMAZON
Buy "Transformers: Generations Power of The Primes Deluxe Class Dinobot Sludge" on AMAZON
Buy "Transformers Generations Leader Powermaster Optimus Prime Action Figure (Discontinued by manufacturer)" on AMAZON
Buy "Transformers: The Last Knight 1-Step Turbo Changer Cogman" on AMAZON
Buy "Transformers Studio Series 05 Voyager Class Movie 2 Optimus Prime" on AMAZON
Buy "Transformers Generations Combiner Wars Voyager Class Onslaught Figure" on AMAZON
These are affiliate links. We may earn a commission.
Details subject to change. See listing for latest price and availability.