Lepisosteidae
Gars are an ancient group of ray-finned fish in the family Lepisosteidae. They comprise seven living species of fish in two genera that inhabit fresh, brackish, and occasionally marine waters of eastern North America, Central America and Cuba in the Caribbean, though extinct members of the family were more widespread. They are the only surviving members of the Ginglymodi, a clade of fish which first appeared during the Triassic period, over 240 million years ago, and are one of only two surviving groups of holosteian fish, alongside the bowfins, which have a similar distribution.

Uncredited · Public Domain · 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
- LepisosteoideaPBDB
- Diet
- carnivorePBDB, for Lepisosteiformes
- Life habit
- nektonicPBDB, for Lepisosteiformes
- Motility
- actively mobilePBDB, for Lepisosteiformes
- Environment
- freshwaterPBDB, for Lepisosteiformes
Time the record covers
At least 149 million years on record.
The record covers at least 149.2 Mya to 11.7 ka. No occurrence read is dated outside 154.8 Mya to 0 Mya.
703 occurrences of Lepisosteidae on record, most of them in the Late Cretaceous. The Paleobiology Database records this as a living group. 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
703 occurrences- Late Jurassicunder 1%
- Early Cretaceousunder 1%
- Late Cretaceous66%
- Paleocene6%
- Eocene16%
- Oligoceneunder 1%
- Miocene4%
- Plioceneunder 1%
- Pleistocene5%
- Holoceneunder 1%
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
168 formations
- Hell Creek Formation · Montana Group102
- Willwood Formation56
- Ferris Formation37
- Dinosaur Park Formation · Belly River Group36
- Lance Formation30
- Oldman Formation · Belly River Group21
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The named rock units Lepisosteidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 144 further formations hold fewer occurrences each and are not listed. 70 occurrences have no formation on record, which is common for older literature.
Lepisosteidae and its relatives
Late CretaceousWhere Lepisosteidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
2,297 taxa- Lepisosteus130 sites
- Myledaphus bipartitus94 sites
- Scapherpeton tectum94 sites
- Lepisosteus occidentalis93 sites
- Trionychidae93 sites
- Ceratopsidae82 sites
- Crocodylia75 sites
- Baenidae73 sites
- Teleostei72 sites
- Opisthotriton kayi71 sites
- Chelydridae70 sites
- Anura65 sites
- Hadrosauridae64 sites
- Theropoda60 sites
- Aves59 sites
- Champsosaurus58 sites
- Belonostomus longirostris53 sites
- Paralbula casei53 sites
- Paronychodon53 sites
- Multituberculata52 sites
- Adocus48 sites
- Brachychampsa montana48 sites
- Coriops amnicolus48 sites
- Lacertilia48 sites
The Paleobiology Database records 648 sites for Lepisosteidae, and this reads 240 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
316 references- Fossil Vertebrate Collections40
- Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary40
- Vertebrate faunal changes through Lancian and Puercan time in southern Wyoming37
- Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota31
- Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming20
- Vertebrate microsite assemblages (exclusive of mammals) from the Foremost and Oldman Formations of the Judith River Group (Campanian) of southeastern Alberta: an illustrated guide18
- Paleontology of the Judith River Formation (Campanian) of Dinosaur National Park, Alberta, Canada: evidence from vertebrate microfossil locality16
- Patterns of geographic variation in latest Cretaceous vertebrates: evidence from the turtle component15
- Paleoecology of an estuarine, incised-valley fill in the Dinosaur Park Formation (Judith River Group, Upper Cretaceous) of southern Alberta, Canada14
- New earliest Wasatchian mammalian fauna from the Eocene of northwestern Wyoming: composition and diversity in a rarely sampled high-floodplain assemblage14
- Paleocene (Puercan-Torrejonian) mammalian faunas of the North Horn Formation, central Utah8
- Late Cretaceous (Maastrichtian) chondrichthyes and osteichthyes from northeastern Iberia7
Each of the 703 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. 304 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 Lepisosteidae
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- Public Domain
- 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, “Gar”
- 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 itLepisosteoidea through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cuvier 1825)