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Martinectes
Martinectes was a small, fast-swimming marine reptile that lived in the shallow seas of North America during the time of the dinosaurs. It had a short neck, a long snout, and four big flippers that helped it chase after fish and squid.1
Noiz bizi izan zen?
Zein handia zen?
Zein luzea zen?
Zein astuna zen?
2,5 txakur bezain luze, sudurretik buztanera🍌bata bestearen atzean jarritako 14 banana bezain luze🍉250 angurria bezain astun🧸haur-eskolako 67 haur bezain astun🎒40 eskolaume bezain astun🐻❄️3 hartz zuri bezain astun🏊igerileku handi baten luzera (50 m) 6,9 segundotan egin zezakeen igerianZein handia zen Martinectes ZUREKIN alderatuta?
Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.
Zein azkarra zen?
Datu dibertigarriak
Martinectes was one of the smallest adult polycotylid plesiosaurs ever found, measuring only about 2.3 to 2.6 metres long.1
It had large eyes with a bony ledge above them, which may have shaded its eyes from sunlight while hunting near the water's surface.1
Martinectes lived about 80 million years ago in the Western Interior Seaway, a huge ocean that split North America in two.1
Its name means 'Martin's swimmer', honoring the person who helped discover its fossils.1
Martinectes was originally thought to be a species of Dolichorhynchops, but scientists gave it its own genus in 2024.1
It had unusually wide bones in its spine and a very short back part of its skull, which helped scientists tell it apart from other plesiosaurs.1
Martinectes: gehien egindako galderak
?How big was Martinectes?
Martinectes was a large polycotylid plesiosaur, measuring at least around 5 metres (16 ft) long. Some estimates suggest it could reach up to 6 to 7 metres (20 to 23 ft), while a 2026 estimate put it at about 4.95 metres (16.2 ft) long.2
?Was Martinectes a dinosaur?
No, Martinectes was a plesiosaur, a marine reptile that lived in the seas during the time of the dinosaurs. It was not a dinosaur.2
?What did Martinectes eat?
Martinectes likely chased after fish and squid, using its long snout and four big flippers to swim fast. Its small teeth and narrow jaws suggest it ate small, slippery prey.2
Dino adituentzat
- Izen zientifikoa
- Martinectes
- Izendatzailea:
- Clark et al. 20243
- Taldea
- Plesiosauroak
- Familia / klada
- Polycotylidae3
- Sailkapena
- Plesiosauria > Sauropterygia3
- Arroken adina
- 84 eta 72 milioi urte artean (Campanian)3
- Arroka-formazioak
- Pierre Shale, Taylor Marl3
- Herrialdeak
- AEB3
- Fosil-erregistroak
- 3 The Paleobiology Database datu-basean3
- Aurkikuntza
- Martinectes was named in 2024 by Robert O. Clark, F. Robin O'Keefe, and Sara E. Slack. They studied fossils that had been found in Wyoming and South Dakota, USA, and realized they belonged to a new genus.31
- Oraindik eztabaidagai
- Scientists are still debating exactly how Martinectes used its unusual eye ledges and wide skull for hunting.1
Datuak nondik datozen
- A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops (sciencedirect.com)
- Martinectes (en.wikipedia.org)
- Martinectes in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
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