Lonchidiidae

Rees, J. · CC BY-SA 4.0 · via Wikidata/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
- HybodontiformesPBDB
- Diet
- carnivorePBDB, for Chondrichthyes
- Life habit
- nektonicPBDB, for Chondrichthyes
- Motility
- actively mobilePBDB, for Chondrichthyes
Time the record covers
At least 234 million years on record.
The record covers at least 307 Mya to 72.2 Mya. No occurrence read is dated outside 315.2 Mya to 66 Mya.
283 occurrences of Lonchidiidae on record, most of them in the Early 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
283 occurrences- Carboniferousunder 1%
- Permianunder 1%
- Middle Triassicunder 1%
- Late Triassic6%
- Early Jurassic2%
- Middle Jurassic2%
- Late Jurassic3%
- Early Cretaceous50%
- Late Cretaceous36%
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
69 formations
- Durlston Formation · Purbeck Group49
- Hell Creek Formation · Montana Group31
- Mesaverde Formation11
- Aguja Formation9
- Lance Formation9
- Hythe Formation · Lower Greensand Group7
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The named rock units Lonchidiidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 45 further formations hold fewer occurrences each and are not listed. 20 occurrences have no formation on record, which is common for older literature.
Lonchidiidae and its relatives
Early CretaceousWhere Lonchidiidae and its relatives were recorded in the Early Cretaceous.
Found in the same rock
1,429 taxa- Lonchidion selachos58 sites
- Myledaphus bipartitus49 sites
- Theropoda48 sites
- Crocodylia46 sites
- Parvodus parvidens46 sites
- Trionychidae39 sites
- Dromaeosauridae35 sites
- Hybodus34 sites
- Anura33 sites
- Egertonodus basanus33 sites
- Borealosuchus sternbergii32 sites
- Brachychampsa montana32 sites
- Lepisosteus occidentalis32 sites
- Paronychodon32 sites
- Scapherpeton tectum30 sites
- Osteichthyes29 sites
- Testudines29 sites
- Cyclurus fragosus28 sites
- Lepidotes27 sites
- Texatrygon avonicola27 sites
- Ceratopsidae26 sites
- Mammalia26 sites
- Scapanorhynchus texanus26 sites
- Adocus25 sites
The Paleobiology Database records 201 sites for Lonchidiidae, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
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
106 references- Selachian faunas from the lowermost Purbeck Group of Dorset, southern England52
- Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota13
- A new selachian fauna from the late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin)10
- Fossil Vertebrate Collections9
- Microvertebrates from the Lower Greensand Group (Lower Cretaceous) of Clophill, Bedfordshire, UK, and Nutfield, Surrey, UK8
- A new species of Vectiselachos (Chondrichthyes, Selachii) from the Early Cretaceous of southern England7
- Contribution à l'étude des Sélaciens du Crétacé du Bassin de Paris. Découverte de quelques nouvelles espèces associées à une faune de type wealdien dans le Barrémien supérieur (Crétacé inférieur) des environs de Troyes (Aube)7
- Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming7
- Vertebrate paleoecology from microsites, Talley Mountain, Upper Aguja Formation (Late Cretaceous), Big Bend National Park, Texas, USA6
- Shark fauna and depositional environment of the earliest Cretaceous Vitabäck Clays at Eriksdal, southern Sweden6
- Vertebrate paleontology of the Cloverly Formation (Lower Cretaceous), I: faunal composition, biogeographic relationships, and sampling5
- Vertebrate faunal changes through Lancian and Puercan time in southern Wyoming5
Each of the 283 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. 94 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Lonchidiidae
- Source
- Wikidata/Commons
- Credit
- Rees, J.
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Lonchidiidae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHybodontiformes through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Herman 1977