Stenopterygius
Stenopterygius was a fast-swimming marine reptile that lived in the Jurassic seas. It looked a bit like a dolphin but was actually an ichthyosaur, not a dinosaur. It had a long beak full of teeth and chased after fish and squid.1
Berɛ bɛn na ɛtenaa ase?
Na ne kɛseɛ yɛ sɛn?
Na ne tenten yɛ sɛn?
ne tenten te sɛ nkraman 4 firi hwene kɔsi dua🍌ne tenten te sɛ kwadu 22 a wɔde abɔ toatoa so🏊anka ɔbɛtumi aguare nsuguarebea kɛseɛ (50 m) tenten wɔ sikɛn 3.8 muStenopterygius kɛseɛ yɛ sɛn sɛ wode toto WO ho a?
Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.
Na ɛyɛ ntɛm sɛn?
Nsɛm a ɛyɛ anigye
Stenopterygius had a small skull and narrow flippers compared to its relative Ichthyosaurus.1
One well-preserved fossil shows traces of skin, revealing that Stenopterygius was countershaded: darker on the back and lighter on the belly.1
Fossils of Stenopterygius often contain the remains of its last meal in the stomach area.1
The tail ended in a large, semicircular, leathery vertical fin, and it also had a triangular dorsal fin on its back.1
Stenopterygius lived during the Early and Middle Jurassic, about 183 to 173 million years ago.1
The type specimen of Stenopterygius quadriscissus is a complete skeleton that even preserved a very large embryo inside.1

Nsɛm a wɔbisa bebree fa Stenopterygius ho
?How big was Stenopterygius?
Stenopterygius was a medium sized ichthyosaur, with most species reaching about 3.5 metres long, while the largest, S. uniter, could exceed 4 metres.1
?What did Stenopterygius eat?
Stenopterygius hunted fish, cephalopods, and other animals in the open sea. Fossils often contain the remains of its last meal in the stomach area.1
?Was Stenopterygius a dinosaur?
No, Stenopterygius was an ichthyosaur, a marine reptile, not a dinosaur. It looked a bit like a dolphin but was actually a different group of reptiles.1
?Did Stenopterygius give birth to live young?
Yes, Stenopterygius gave birth to live young, and one famous fossil shows a mother that died in childbirth. It preferred tail-first births, like modern dolphins and whales.1
Ma dino ho animdefoɔ
- Nyansahu din
- Stenopterygius
- Obi a ɔtoo din
- Jaekel 19043
- Kuo
- Iktiosɔɔ
- Abusua / kuo kɛseɛ
- Thunnosauria3
- Nkyekyɛmu
- Ichthyosauria > Ichthyosauromorpha3
- Abotan no mfeɛ
- mfeɛ ɔpepem 184 kɔsi 171 (Toarcian / Aalenian)3
- Abotan nhyehyɛeɛ
- Posidonia Shale, Opalinuston, Beacon Limstone3
- Aman
- Gyaaman, Engiresi, Luxembourg, Frɛnse3
- Fɔsil nkyerɛwee
- 47 wɔ The Paleobiology Database mu3
- Nhunumu
- The species was first named as Ichthyosaurus quadriscissus by Quenstedt in 1856. Otto Jaekel gave it its own genus, Stenopterygius, in 1904.1
- Wɔda so gye ho akyinnye
- Scientists are still debating exactly how many species of Stenopterygius existed, because the fossils are often incomplete.2
Baabi a nsɛm no firi
- Stenopterygius (en.wikipedia.org)
- First Diagnostic Marine Reptile Remains from the Aalenian (Middle Jurassic): A New Ichthyosaur from Southwestern Germany | PLOS One (journals.plos.org)
- Stenopterygius in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.
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