Ichthyosaurus: No measured body size data available to draw at scale.
- · Grid units represent actual meters (m); human and animals are drawn to the exact same scale with original silhouette aspect ratios preserved.
- · When a size range is recorded (e.g. 1–1.6m), the lower bound is used for scale comparison.
- · Human silhouette: PhyloPic — NASA · Public Domain Mark 1.0
Ichthyosaurus
Ichthyosaurus communis (Ichthyosaurus · Ichthyosaurus)
Known only from fossils. The IUCN Red List assesses only species extant since 1500 CE, so fossil taxa are not assigned a category.
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Because its streamlined body resembles that of a dolphin, it is easy to picture an ichthyosaur as a "dolphin-like reptile" (Comparison).
- 💡 The Natural History Museum in London notes that fossils of this genus can be seen in its Fossil Marine Reptiles gallery.
Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.
📖 1. Overview
Ichthyosaurus communis (genus Ichthyosaurus) is an ichthyosaur whose name means "fish lizard." Named in 1817, the name of the entire ichthyosaur group comes from this genus.
🦴 2. Anatomy & Morphology
Living in the sea, ichthyosaurs evolved streamlined bodies resembling fishes and marine mammals. As a result, they were first mistaken for fishes, crocodiles, or dolphins.
🔍 3. Fossil Record & Paleoecology
All known ichthyosaurs were carnivorous, eating a wide range of prey from small fish and squid to other marine reptiles. Specimens of this species came from the Lower Lias at Lyme Regis in the United Kingdom.
🇰🇷 4. Connection to Korea
No direct record connecting this species to Korea has been found.
📚 Sources & References
- • Fossil taxon — the IUCN Red List assesses only species living or extinct since 1500
- • paleobiodb.org — basicTaxonInfo
- • wikidata.org — Q41216478
- • commons.wikimedia.org — File:Ichthyosaurus communis 2.JPG
- • nhm.ac.uk — what-is-an-ichthyosaur.html
- • nhm.ac.uk — marine-reptiles.html
- • Silhouette: PhyloPic — Jagged Fang Designs · CC0 1.0
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.