Libonectes morgani
Libonectes is an extinct genus of sauropterygian reptile belonging to the plesiosaur order. It is known from specimens found in the Britton Formation of Texas (USA) and the Akrabou Formation of Morocco, which have been dated to the lower Turonian stage of the late Cretaceous period.

Carpenter, Kenneth · CC BY-SA 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- LibonectesPBDB
- Diet
- carnivorePBDB, for Plesiosauria
- Life habit
- aquatic, depth=surfacePBDB, for Plesiosauria
- Motility
- actively mobilePBDB, for Plesiosauria
- Environment
- marinePBDB, for Plesiosauria
Time the record covers
At most 11 million years on record.
Every occurrence read is dated to somewhere between 100.5 Mya and 89.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Libonectes morgani on record, most of them in the Late Cretaceous. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
2 occurrences- Late Cretaceous100%
These are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
2 formations
- Britton Formation · Eagle Ford Group1
- Akrabou Formation1
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The named rock units Libonectes morgani has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Libonectes morgani and its relatives
Late CretaceousWhere Libonectes morgani and its relatives were recorded in the Late Cretaceous.
Found in the same rock
4 taxa- Brachauchenius lucasi1 site
- Manemergus anguirostris1 site
- Tethysaurus nopcsai1 site
- Thililua longicollis1 site
The Paleobiology Database records 2 sites for Libonectes morgani, and this reads all of them. The number is how many of those sites it was catalogued from too.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
2 references- An elasmosaur (Reptilia: Sauropterygia) from the Turonian (Upper Cretaceous) of Morocco1
- A new elasmosaur from the Eagle Ford Shale of Texas1
Each of the 2 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Libonectes morgani
- Source
- Wikipedia/Commons
- Credit
- Carpenter, Kenneth
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Libonectes”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itLibonectes through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Welles 1949)