Fluvionectes
Fluvionectes was a long-necked marine reptile that swam in rivers and estuaries, not the open ocean. It was a type of plesiosaur called an elasmosaur, and it hunted fish and other prey in the water.1
Wanneer het dit geleef?
Hoe groot was dit?
Hoe lank was dit?
Hoe swaar was dit?
so lank soos 7 honde van neus tot stert🍌so lank soos 39 piesangs punt aan punt🍉so swaar soos 78 waatlemoene🧸so swaar soos 21 kleuterskoolkinders🎒so swaar soos 12 skoolkinders🏊kon die lengte van 'n groot swembad (50 m) in 6,2 sekondes swemHoe groot was Fluvionectes vergeleke met JOU?
Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.
Hoe vinnig was dit?
Prettige feite
Fluvionectes is one of the few plesiosaurs found in non-marine rocks, meaning it lived in rivers and estuaries, not the open ocean.1
The holotype skeleton was found disarticulated, scattered over an area of about 2.5 square metres, with only two rib bones still connected.1
Fluvionectes had 22 dorsal vertebrae, which is a unique feature that helps scientists identify it as a new species.1
The name Fluvionectes comes from Latin and Greek words meaning 'river swimmer', because it lived in rivers.1
The species name sloanae honours Donna Sloan, who discovered the holotype and worked as a scientific illustrator at the Royal Tyrrell Museum.1
Fluvionectes was smaller than many other elasmosaurids that lived in the ocean, which might be because it lived in rivers.1

Mees gevraagde vrae oor Fluvionectes
?How big was Fluvionectes?
About 5 to 5.2 metres (16 to 17 ft) long for the holotype, and the largest known specimen may have reached 7 metres (23 ft).23
?What did Fluvionectes eat?
It hunted fish and other vertebrates in the water, using its slender tooth and powerful flippers to catch prey.4
?Where did Fluvionectes live?
It lived in rivers and estuaries (brackish water) in what is now Alberta, Canada, not in the open ocean like most other elasmosaurs.23
?Is Fluvionectes a dinosaur?
No, it is a plesiosaur, a type of marine reptile that lived in the water during the time of dinosaurs.2
Mite-breker
Mite: Some people think all plesiosaurs lived only in the ocean.
Waarheid: Fluvionectes shows that some plesiosaurs lived in rivers and estuaries, not just the open sea.1
Vir dino-kenners
- Wetenskaplike naam
- Fluvionectes
- Benoem deur
- Campbell et al. 20215
- Groep
- Plesiosourusse
- Familie / klade
- Elasmosauridae5
- Klassifikasie
- Plesiosauria > Elasmosauridae > Sauropterygia5
- Ouderdom van die rotse
- 84 tot 72 miljoen jaar (Campanian)5
- Rotsformasies
- Dinosaur Park5
- Lande
- Kanada5
- Fossielrekords
- 6 in The Paleobiology Database5
- Ontdekking
- The holotype was discovered by Donna Sloan in the Dinosaur Park Formation in Alberta, Canada. It was named by Campbell and colleagues in 2021.1
- Steeds omstrede
- Scientists are still debating why Fluvionectes was smaller than ocean-living elasmosaurids, and whether it spent its whole life in rivers or moved between fresh and salt water.1
Waar die feite vandaan kom
- PeerJ A new elasmosaurid (Sauropterygia: Plesiosauria) from the non-marine to paralic Dinosaur Park Formation of southern Alberta, Canada (peerj.com)
- Fluvionectes (en.wikipedia.org)
- A new elasmosaurid (Sauropterygia: Plesiosauria) from the non-marine to paralic Dinosaur Park Formation of southern Alberta, Canada (pmc.ncbi.nlm.nih.gov)
- New Late Cretaceous Marine Reptile publication by M. Ryan and J. Campbell | Department of Earth Sciences (earthsci.carleton.ca)
- Fluvionectes in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.
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