• Dinosaur-themed baby onesie front view — The Anning collection by Stemmewear
  • Dinosaur baby onesie flat lay — organic cotton with paleontology print
  • Dinosaur baby onesie back view — Mary Anning inspired design
  • Baby wearing dinosaur-themed onesie — The Anning organic cotton bodysuit
  • Dinosaur baby onesie detail — two-way zipper and foldover feet
  • Dinosaur baby onesie close-up — fossil and dinosaur print pattern
  • Stemmewear organic cotton certification and ethical manufacturing details
  • Dinosaur baby onesie fabric detail — 100% organic bamboo cotton
  • Dinosaur baby onesie packaging — Stemmewear gift-ready presentation
  • Stemmewear charitable giving — supporting girls in STEM education
  • The Anning dinosaur baby onesie — science-inspired newborn clothing by Stemmewear
  • Stemmewear brand values — ethically made science-inspired kids clothing
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The Anning - Dinosaur-Themed Baby Onesie

The Anning - Dinosaur-Themed Baby Onesie

$33.00 USD
$33.00 USD
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Inspired by Mary Anning

Mary Anning was one of the most important fossil hunters in history. She discovered the first complete Ichthyosaurus skeleton at just 12 years old and went on to reshape our understanding of prehistoric life. This onesie celebrates her curiosity, courage, and love of discovery.

Designed for Comfort

Our dinosaur-themed baby onesie features a playful paleontology-inspired print that sparks imagination from day one. Made from 100% organic bamboo cotton, the fabric is incredibly soft against your baby's delicate skin and gets softer with every wash.

Thoughtful Details

Every Anning onesie includes a two-way zipper for quick and easy diaper changes, plus foldover feet to keep tiny toes warm on cold nights. The snug fit is designed for safe sleep without the use of flame retardants — just pure, natural cotton.

Ethically Made

Stemmewear is proudly woman-owned and Canadian. Our products are ethically manufactured with fair labor practices. A portion of every purchase supports girls in STEM education through our charity partners, including Plan International and Girls Who Code.

Sizing

Available in Newborn, 0-3 months, 3-6 months, 6-12 months, and 12-18 months. Please ensure a snug fit as flame retardants are not used in production.

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Mary Anning Pyjamas

Mary Anning Pyjamas

Dig into discovery with these fossil-covered pyjamas, inspired by Mary Anning, the pioneering paleontologist who unearthed some of the most important dinosaur fossils in history! She discovered the first complete ichthyosaur and plesiosaur skeletons, shaping our understanding of prehistoric life. Featuring ammonites, fossils, and excavation tools, these PJs celebrate the thrill of uncovering the past.

Your Purchase Supports

Your Purchase Supports

We believe in empowering the next generation of female scientists, engineers, and innovators. That’s why a portion of every purchase goes toward organizations that support education and STEM opportunities for girls.

Today we partner with the Canadian Association for Girls in Science (CAGIS), Canada’s largest and longest-running STEM club for girls aged 7 to 16, with hands-on activities, field trips to real labs, and mentorship from scientists and engineers. We have also supported Plan International and Girls Who Code.

When you shop with us, you’re not just buying pyjamas. You’re investing in the future of girls in STEM.

Ethically Made

Ethically Made

Stemmewear pyjamas are ethically made in certified factories using organic materials and non-toxic dyes, ensuring a gentle touch on both skin and planet. Free from harmful fire retardants, our sleepwear keeps little scientists safe without compromise. Our toddler pyjamas are crafted from premium, thick organic cotton for ultimate comfort, while our baby pyjamas are made from soft-to-touch, sustainable bamboo. As a proudly Canadian-owned business, we’re committed to sustainable, high-quality craftsmanship—built be loved and passed down to all the scientists in the family.

Our Reviews

  • "Empowering messaging & creative designs"

    Love Stemmewear products - creative, fun & inspiring messaging for young girls. Most recent purchases were for two sisters in London - the whole family loved the gifts!!

    Meryl R.

  • "LOVE"

    I bought this for my friend's 2.5 year old daughter and she absolutely LOVES it! My friend told me it's the first pair of pyjamas her daughter will always pick out of her closet to wear because it's SO soft! Thank you Stemmewear for creating a product that's so comfy and promotes education. Amazing company — I will definitely buy more!

    Nicole B.

  • "Thank You"

    I gifted these pyjamas and she absolutely loved it! Thank you :)

    Jessica L.

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