Stevie the Stygimoloch – Free Dinosaur Crochet Pattern

ByNicole Chase Updated on

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Stevie the Stygimoloch crochet pattern is the latest dinosaur amigurumi to join my collection! I’ve always been drawn to the more unique, lesser-known prehistoric creatures, and this free dinosaur crochet pattern was such a fun design challenge to bring to life.

If you are a fan of Jurassic World, you’ll likely recognize the Stygimoloch (nicknamed “Stiggy”) from Fallen Kingdom. From a design perspective, the most interesting part of this dinosaur is its distinctive spiked dome. I designed Stevie as a beginner-friendly amigurumi project.

Fun Fact: While the Stygimoloch was initially classified as its own species, many paleontologists now believe it is actually a juvenile Pachycephalosaurus.

A finished, handmade, orange and yellow crochet Stygimoloch amigurumi sits on a white furry surface. The design features a prominent raised domed head surrounded by spikes that from the crown.

If you love crochet dinosaurs, you’ll find plenty of others in my collection of free dinosaur crochet patterns. Whether you’re looking for a long-necked friend or a classic T-Rex, these dinosaur amigurumi designs are all created with the same beginner-friendly approach.

I hope you enjoy this free crochet pattern available here on my blog! An ad-free, formatted PDF version of this crochet pattern is also available for purchase here:

Ravelry
Etsy
Frontal view of a handmade Stygimoloch amigurumi dinosaur. This crochet project features a unique dome-head and spike details around the head. The dinosaur is shown from the front on a white background.

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I would classify this dinosaur amigurumi pattern as “advanced beginner”. It would be helpful to have had some experience with amigurumi before creating this project.

Free Crochet Pattern for Stevie the Stygimoloch

Pattern Specifics

Measurements: Approximately 8” tall (sitting) or 10.5” tall (standing)
Gauge: Not necessary for this pattern; see notes
Hook Size: 4.0mm (G) crochet hook
Other Tools: tapestry needle, stitch markers, scissors
Yarn Weight:  Medium (4), Worsted
Yarn Used:  WeCrochet / Knit Picks Brava Worsted
Yardage: color A (yellow): 148 yds, color B (orange): 40 yds, color C (light yellow): 10 yds, color D (white): 4 yds
Other Materials: poly-fil stuffing, 12mm safety eyes

Stitch Abbreviations

st = stitch
sl st = slip stitch
SC = single crochet
SC2tog = single crochet 2 stitches together (invisible decrease is recommended)

Special Stitches

SC2tog (using invisible decrease method): Insert hook into front loop of the first stitch. Insert hook into front loop of second stitch. Yarn over. Draw through the first two loops on hook. Yarn over. Draw through both loops on hook.

Notes

  • Checking your gauge is not required for this pattern. Use a hook that is smaller than the size recommended for your yarn weight. This will ensure that your stuffing will not show through the stitches.
  • All pieces are worked in the round. Use a stitch marker to indicate the beginning of each round.
  • Invisible decreases are recommended. Please see “Special Stitches”.
  • Safety eyes and noses pose a choking risk for babies; therefore, if making this toy for a baby, I recommend using yarn, felt, or embroidered details.
  • Body, head, legs, arms, horns, and tail require stuffing. Stuff each piece as you work to ensure the piece is completely filled. Do not add stuffing to the spikes.
  • See tutorial photos.

Pattern

Body

Using color A (shown as yellow):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 2 SC in each st around. (12 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (18 sts)

R4: *2 SC in next st, 1 SC in each of the next 2 sts. Repeat from * around. (24 sts)

R5: *2 SC in next st, 1 SC in each of the next 3 sts. Repeat from * around. (30 sts)

R6: *2 SC in next st, 1 SC in each of the next 4 sts. Repeat from * around. (36 sts)

R7: *2 SC in next st, 1 SC in each of the next 5 sts. Repeat from * around. (42 sts)

R8-18: 1 SC in each st around. (42 sts)

R19: *SC2tog, 1 SC in each of the next 5 sts. Repeat from * around. (36 sts)

R20-21: 1 SC in each st around. (36 sts)

R22: *SC2tog, 1 SC in each of the next 4 sts. Repeat from * around. (30 sts)

R23-R24: 1 SC in each st around. (30 sts)

R25: *SC2tog, 1 SC in each of the next 3 sts. Repeat from * around. (24 sts)

R26-27: 1 SC in each st around. (24 sts)

R28: *SC2tog, 1 SC in each of the next 2 sts. Repeat from * around. (18 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

Fill with stuffing.

Body of the stygimoloch amigurumi made in a bright yellow/orange yarn and filled with stuffing. Awaiting assembly.

Dome

Using color C (shown as light yellow):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 2 SC in each st around. (12 sts)

R3: *1 SC in next st, 2 SC in next st. Repeat from * an additional 2 times. **2 SC in next st, 1 SC in next st. Repeat from ** an additional 2 times. (18 sts)

R4: *1 SC in each of the next 2 sts, 2 SC in next st. Repeat from * an additional 2 times. **2 SC in next st, 1 SC in each of the next 2 sts. Repeat from ** an additional 2 times. (24 sts)

R5: *1 SC in each of the next 3 sts, 2 SC in next st. Repeat from * an additional 2 times. **2 SC in next st, 1 SC in each of the next 3 sts. Repeat from ** an additional 2 times. (30 sts)

R6: *1 SC in each of the next 4 sts, 2 SC in next st. Repeat from * an additional 2 times. **2 SC in next st, 1 SC in each of the next 4 sts. Repeat from ** an additional 2 times. (36 sts)

R7: *1 SC in each of the next 5 sts, 2 SC in next st. Repeat from * an additional 2 times. **2 SC in next st, 1 SC in each of the next 5 sts. Repeat from ** an additional 2 times. (42 sts)

R8: 1 SC in each of the next 20 sts, 3 SC in each of the next 2 sts, 1 SC in each of the next 20 sts. (46 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

The finished Dome piece of the crochet dinosaur made in a light yellow colored yarn.

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 2 SC in each st around. (12 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (18 sts)

R4: *2 SC in next st, 1 SC in each of the next 2 sts. Repeat from * around. (24 sts)

R5-6: 1 SC in each st around. (24 sts)

Using color A (shown as yellow):

R7: *2 SC in next st, 1 SC in each of the next 3 sts. Repeat from * around. (30 sts)

R8-10: 1 SC in each st around. (30 sts)

R11: *2 SC in next st, 1 SC in each of the next 4 sts. Repeat from * around. (36 sts)

R12: 1 SC in each st around. (36 sts)

R13: *2 SC in next st, 1 SC in each of the next 5 sts. Repeat from * around. (42 sts)

R14: *2 SC in next st, 1 SC in each of the next 6 sts. Repeat from * around. (48 sts)

R15: *2 SC in next st, 1 SC in each of the next 3 sts. Repeat from * an additional 5 times. 1 SC in each of the next 24 sts around. (54 sts)

R16: *2 SC in next st, 1 SC in each of the next 4 sts. Repeat from * an additional 5 times. 1 SC in each of the next 24 sts around. (60 sts)

R17: 1 SC in each of the next 32 sts. Add a st marker to the last worked st. 1 SC in each of the next 28 sts. (60 sts)

The added st marker, and the st marker at the beginning of this round helps to indicate the front of the face. The 28 sts between the two st markers sit flat and indicate the bottom of the head. If using safety eyes, insert eyes between R14 and R15, with 14 sts between. You can now remove your second st marker. See tutorial photos.

A front view of the face of the Stygimoloch dinosaur after the completion of R17.
A top down view of the face of the Stygimoloch dinosaur after the completion of R17.
The Stygimoloch dinosaur after R17 has been completed demonstrating the proper placement of the black safety eyes.

R18-19: 1 SC in each st around. (60 sts)

R20: *SC2tog, 1 SC in each of the next 8 sts. Repeat from * around. (54 sts)

R21: * SC2tog, 1 SC in each of the next 7 sts. Repeat from * around. (48 sts)

R22-23: 1 SC in each st around. (48 sts) 

R24: *SC2tog, 1 SC in each of the next 6 sts. Repeat from * around. (42 sts)

R25: 1 SC in each st around. (42 sts)

R26: *SC2tog, 1 SC in each of the next 5 sts. Repeat from * around. (36 sts)

R27: *SC2tog, 1 SC in each of the next 4 sts. Repeat from * around (30 sts)

R28: *SC2tog, 1 SC in each of the next 3 sts. Repeat from * around. (24 sts)

R29: *SC2tog, 1 SC in each of the next 2 sts. Repeat from * around. (18 sts)

Fill with stuffing.

R30: *SC2tog, 1 SC in the next st. Repeat from * around. (12 sts)

R31: *SC2tog. Repeat from * around. (6 sts)

Cut yarn, weave yarn in and out of remaining sts. Pull tight to close. Tie off and weave in ends.

The finished head of the Stygimoloch crochet pattern made in a bright yellow and orange yarn.

Front Horn

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2-3: 1 SC in each st around. (6 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

Fill with stuffing.

Crown Horn – Small (make 2)

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 1 SC in each st around. (6 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (9 sts)

R4: 1 SC in each st around. (9 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

Fill with stuffing.

Crown Horn – Medium (make 2)

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 1 SC in each st around. (6 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (9 sts)

R4-7: 1 SC in each st around. (9 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

Fill with stuffing.

Crown Horn – Large (make 2)

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 1 SC in each st around. (6 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (9 sts)

R4-10: 1 SC in each st around. (9 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

Fill with stuffing.

The finished front horn and six crown horns for the Stygimoloch crochet pattern, all made in orange yarn.

Legs (make 2)

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 2 SC in each st around. (12 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (18 sts)

R4: *2 SC in next st, 1 SC in each of the next 2 sts. Repeat from * around. (24 sts)

R5: *2 SC in next st, 1 SC in each of the next 3 sts. Repeat from * around. (30 sts)

Using color A (shown as yellow):

R6-7: 1 SC in each st around. (30 sts)

R8: *SC2tog, 1 SC in each of the next 3 sts. Repeat from * around. (24 sts)

R9-10: 1 SC in each st around. (24 sts)

R11: *SC2tog, 1 SC in each of the next 4 sts. Repeat from * around. (20 sts)

R12-19: 1 SC in each st around. (20 sts)

Fill with stuffing.

R20: Fold the leg closed. Working through both sides, 1 SC in each st across, leaving 1 unworked st on each side. See tutorial photos. (9 sts)

leg piece, filled with stuffing, prior to the leg being closed
leg piece with hook inserted through both sides to crochet them together
leg piece closed nearly all the way with single crochet stitches
leg piece closed nearly all the way with single crochet stitches, with hook through both sides of the next st
finished leg piece prior to fastening off
finished leg piece with long tail for sewing
*Note: These tutorial photos are only to demonstrate the technique of crocheting the piece closed; project size and colors shown may differ from the current pattern.

Cut yarn, leaving long strand for sewing. Fasten off.

Two finished crochet legs for the amigurumi dinosaur made in a bright yellow and orange yarn. Both are filled with stuffing and closed and ready for assembly.

Arms (make 2)

Using color B (shown as orange):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 2 SC in each st around. (12 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (18 sts)

R4: *2 SC in next st, 1 SC in each of the next 2 sts. Repeat from * around. (24 sts)

Using color A (shown as yellow):

R5-6: 1 SC in each st around. (24 sts)

R7: *SC2tog, 1 SC in each of the next 4 sts. Repeat from * around. (20 sts)

R8: 1 SC in each st around. (20 sts)

R9: *SC2tog, 1 SC in each of the next 3 sts. Repeat from * around. (16 sts)

R10-14: 1 SC in each st around. (16 sts)

Fill with stuffing.

R15: Fold the arm closed. Working through both sides, 1 SC in each st across, leaving 1 unworked st on each side. See tutorial photos. (7 sts)

Cut yarn, leaving long tail for sewing. Fasten off.

Two finished crochet arms for the crochet dinosaur pattern made in a bright yellow and orange yarn. Both are filled with stuffing and closed and ready for assembly.

Tail

Using color A (shown as yellow):

R1: Begin with 6 SC in a magic ring. (6 sts)

R2: 1 SC in each st around. (6 sts)

R3: *2 SC in next st, 1 SC in next st. Repeat from * around. (9 sts)

R4: 1 SC in each st around. (9 sts)

R5: *2 SC in next st, 1 SC in each of the next 2 sts. Repeat from * around. (12 sts)

R6-8: 1 SC in each st around. (12 sts)

R9: *2 SC in next st, 1 SC in each of the next 3 sts. Repeat from * around. (15 sts)

R10: 1 SC in each st around. (15 sts)

R11: *2 SC in next st, 1 SC in each of the next 4 sts. Repeat from * around. (18 sts)

R12: 1 SC in each st around. (18 sts)

R13: *2 SC in next st, 1 SC in each of the next 5 sts. Repeat from * around. (21 sts)

R14-15: 1 SC in each st around. (21 sts)

Cut yarn, leaving long strand for sewing. Fasten off.

Fill with stuffing.

The finished tail of the Stygimoloch crochet pattern made in bright yellow yarn.

Assembly & Finishing

See tutorial photos.

 Align the tip of the dome to approximately R11, between the eyes, and attach the dome to the top of the head.

The dome of the Stygimoloch crochet pattern is pinned into place on the top of the head and ready for sewing.
A view from the back of the head showing the dome pinned in place on top of the dinosaur's crochet head.
A top-down view of the Dome of the Stygimoloch crochet pattern pinned into place and awaiting sewing.
The Dome of the free Stygimoloch crochet pattern has been sewn into place on top of the head, a view from the top.
A view of the back of the dinosaur's crochet head after the Dome has been sewn into place.

 Attach front horn just below the tip of the dome, over R7-11.

Using color A (shown as yellow), embroider 2 nostrils on the head, on either side of the front horn, over R5-6/R6-7 (one row of each color), leaving about 2 sts between the nostril and the front horn.

The front horn of the crochet Stygimoloch has been pinned into place on the front of the face and is awaiting sewing.
The front horn has been sewn into place on the head of the crochet Pachycephalosaurs.
Nostrils have been added to the front of the face on the crochet dinosaur.

Attach crown horns around the back of the dome with large horns in the back and small horns in the front in the following sequence: small, medium, large, large, medium, small. See tutorial photos.

The two largest crown horns have been pinned into place on top of the crochet head and are awaiting sewing.
The two largest crochet crown horns have been sewn into place around the Dome on the top of the Stygimoloch's head.
The next two crown horns have been pinned into place on each side of the largest horns and are awaiting sewing.
The second crown horns have been sewn into place on the head of the dinosaur Stygimoloch amigurumi.
The smallest crown horns for the Stygimoloch crochet pattern have been pinned into place and are awaiting sewing.
The crown horns of the crochet Stygimoloch have been sewn into place on the top of the dinosaur's head.
A back view of the crown horns for the crochet Stygimoloch sewn into place.
A side view of the crochet horns sewn into a crown shape around the head of the Stygimoloch crochet pattern amigurumi.

 Attach head to body so that the nose is facing straight out, attaching body to approximately R15-20 of the bottom of the head.

The body of the Stygimoloch crochet pattern has been pinned into place on the bottom of the head before sewing.
The body has been sewn into place on the bottom of the head of the crochet Stygimoloch, a front view.
A side view of the crochet Stygimoloch head and body sewn into place.
A view from the back of the crochet Stygimoloch with the head and body sewn into place.

 Attach legs between R7-8 of the body, with 3 sts showing between.

The crochet legs of the Stevie the Stygimoloch crochet pattern have been pinned into place on the front of the body.
The legs have been sewn into place on the Stygimoloch crochet pattern on the front bottom of the body.
A bottom view of the legs sewn into place on the bottom of the dinosaur body.
The dinosaur is in a sitting position, displaying the crochet legs sewn into place.

 Using color D (shown as white), embroider 3 nails on each leg, over R5-7, leaving about 2 sts between each nail.

The white embroidered nails on the legs of the crochet Stygimoloch.

Attach arms over R19-26 on each side of the body. At the top of the arms, leave approximately 12 sts between each arm across the front of the body. At the bottom of the arms, leave approximately 18 sts between each arm across the front of the body.

The crochet arms have been pinned into place on each side of the dinosaur's body and are ready for sewing.
The arms of the crochet Stygimoloch have been sewn into place on each side of the body, a view with the arms wide open.
A front view of the arms together, showing the placement of the arms sewn into place on the sides of the dinosaur amigurumi body.
A side view of the crochet arms sewn into place on the side of the Stygimoloch amigurumi body.

Using color D (shown as white), embroider 3 nails on each arm, over R4-5, leaving about 2 sts between each nail.

White nails have been embroidered on the arms of the crochet Stygimoloch.

 Attach tail over R6-12 on the back of the body.

The Stygimoloch's crochet tail has been pinned into place on the back of the body and is awaiting sewing.
The crochet tail of the Stygimoloch crochet pattern has been sewn into place on the back of the body, a side view.
A straight on view of the crochet tail of the Stygimoloch sewn into place on the back of the body.

I hope you enjoyed crocheting Stevie the crochet Stygimoloch! If you share your work on social media, be sure to tag me @thenicolechase so I can see your finished dinosaur amigurumi!

Side view of an orange crochet dinosaur sitting on a white plush surface. The handmade Stygimoloch features a small orange horn, a yellow domed head, and a crown of orange horns around the back of the head.

Ad-Free PDF Pattern for Stevie the Stygimoloch

Ravelry
Etsy
A Pinterest pin image for the Stevie the Stygimoloch crochet pattern featuring a collage of three photos of an orange and yellow crochet Stygimoloch. An orange banner reads the pattern name and 'FREE CROCHET PATTERN'. The photos show the finished amigurumi at various angles.
Brava yarn by Crochet.com

Tips for Success

  • Secure Assembly: When assembling your free dinosaur amigurumi pattern, use pins to hold your pieces in place. This prevents them from shifting as you sewn, ensure perfect symmetry.
  • Prevent Head Wobble: Keep the head of this Pachycephalosaurs crochet pattern upright and sturdy by using top tips for preventing amigurumi head wobble.
  • Expert Advice: If you’re looking to level up your amigurumi skills, review my comprehensive list of amigurumi tips and tricks for more ways to get a professional finish on your Stygimoloch crochet pattern.

Pattern Alterations and Variations

  • Go Mini: For a smaller Stygimoloch crochet dino, check out the free pattern for Mini Stevie the Stygimoloch. It’s the same great shape in a smaller version!
  • Upsize with Plush Yarn: You can easily scale up this Pachycephalosaurs crochet pattern by using a bulky plush yarn like Parfait Chunky and a suitable hook size for your chosen yarn. This creates a jumbo “squishy” version of Stevie.
  • Get Creative: Change up the color palette and make each crown spike a different color for a fun twist on this free dinosaur amigurumi pattern.
A close up view of the head of Stevie the Stygimoloch, a free dinosaur amigurumi pattern, showcasing the intricate details of the crown of spikes around the dome head.

More Free Amigurumi Patterns

If you enjoyed making the Stevie the Stygimoloch crochet pattern, you might like these other free amigurumi patterns:

Do You Love Dinosaurs?

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First published February 2022.

I hope you enjoyed this pattern! If you make it, leave me a comment below.

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I’d love to see what you make with this tutorial! Don’t forget to share your finished work with me: on social media by tagging me @thenicolechase, in your Ravelry projects, or post over in my Facebook group!

Thanks for stopping by! Happy crafting!

Nicole

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PATTERN COPYRIGHT © 2026 NICOLE CHASE. ALL RIGHTS RESERVED. 
PATTERN MAY NOT BE ALTERED, COPIED, REDISTRIBUTED OR SOLD AS YOUR OWN PATTERN. 
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PHOTOS MAY NOT BE ALTERED, COPIED, REDISTRIBUTED OR SOLD AS YOUR OWN.

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7 Comments

  1. Hi! One, this pattern is AWESOME. I’m a paleontologist and am nerding out about this pattern, and your others! Two, Stygimoloch being a juvenile Pachy is a hypothesis that originated in 2009. Many paleontologists believe it to be true, but many don’t. I’m less inclined to believe that’s true due to Sty being found in earlier sediment than Pachy, and especially due to the fact that Jack Horner was one of the co-authors of that 2009 paper. Heh. I hate him with a passion (for good reason). He’s a quack.

    Anyway! I love this SO much! <3

    Reply

  3. This is so cute! I love crocheting dinosaurs and am often looking up images of others’ work for inspiration; I was really excited to see a more obscure species like this which there aren’t many patterns for. I love the look of the spikes!

    Reply

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