Ginglymostomatidae
The Ginglymostomatidae are a cosmopolitan family of carpet sharks known as nurse sharks, containing four species in three genera. Common in shallow, tropical, and subtropical waters, these sharks are sluggish and docile bottom dwellers. They are the most abundant species of shark found in shallow coastal waters. Nurse sharks typically attack humans only if directly threatened.

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- Also called
- nurse sharkPBDB
- Sits inside
- OrectolobiformesPBDB
- Diet
- carnivorePBDB, for Orectolobiformes
- Life habit
- nektobenthicPBDB, for Orectolobiformes
- Motility
- actively mobilePBDB, for Orectolobiformes
Time the record covers
At least 144 million years on record.
The record covers at least 145.06 Mya to 129 ka. No occurrence read is dated outside 152.21 Mya to 11.7 ka.
404 occurrences of Ginglymostomatidae 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
404 occurrences- Late Jurassicunder 1%
- Early Cretaceousunder 1%
- Late Cretaceous42%
- Paleocene15%
- Eocene29%
- Oligocene2%
- Miocene9%
- Plioceneunder 1%
- Pleistocene1%
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
126 formations
- Landana Formation14
- Matam Formation13
- Couche II Formation12
- Pirabas Formation11
- Couche III Formation8
- Tallahatta Formation · Claiborne Group6
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The named rock units Ginglymostomatidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 102 further formations hold fewer occurrences each and are not listed. 142 occurrences have no formation on record, which is common for older literature.
Ginglymostomatidae and its relatives
Late CretaceousWhere Ginglymostomatidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
3,064 taxa- Cretalamna appendiculata41 sites
- Myliobatis40 sites
- Rhinobatos40 sites
- Dasyatis36 sites
- Ginglymostoma32 sites
- Squalicorax kaupi32 sites
- Squalicorax pristodontus32 sites
- Rhinoptera30 sites
- Carcharias28 sites
- Hemipristis serra27 sites
- Physogaleus secundus25 sites
- Squatina (Cretascyllium) hassei25 sites
- Ischyrhiza mira24 sites
- Nebrius thielensi24 sites
- Rhizoprionodon24 sites
- Carcharhinus23 sites
- Crocodylia22 sites
- Hybodus22 sites
- Pristis21 sites
- Chiloscyllium20 sites
- Squalicorax20 sites
- Aetomylaeus dixoni19 sites
- Pseudohypolophus mcnultyi19 sites
- Abdounia beaugei18 sites
The Paleobiology Database records 286 sites for Ginglymostomatidae, 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
155 references- Les Orectolobiformes, Carcharhiniformes et Myliobatiformes (Elasmobranchii, Neoselachii) des bassins à phosphate du Maroc (Maastrichtien-Lutétien basal). Systématique, biostratigraphie, évolution et dynamique des faunes86
- Les poissons fossiles du Bas-Congo et des régions voisines24
- The selachian fauna (sharks and rays) of the phosphate series of Ndendouri-Ouali Diala (Matam, Western Senegal): Dating and paleoenvironmental interests13
- Les sélaciens des terrains néocrétacés and paléocènes de Belgique and des contrées limitrophes. Eléments d'une biostratigraphie intercontinentale10
- Neogene sharks and rays from the Brazilian 'Blue Amazon'9
- Marine vertebrate faunas from the Maastrichtian phosphates of Benguérir (Ganntour Basin, Morocco): Biostratigraphy, palaeobiogeography and palaeoecology9
- Taxonomy and biostratigraphy of the elasmobranchs and bony fishes (Chondrichthyes and Osteichthyes) of the lower-to-middle Eocene (Ypresian to Bartonian) Claiborne Group in Alabama, USA, including an analysis of otoliths8
- Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt7
- The marine vertebrate faunas from the Late Cretaceous phosphates of Syria6
- Chondrichthyan and osteichthyan paleofaunas from the Cretaceous (Late Maastrichtian) Fox Hills Formation of North Dakota, USA: paleoecology, paleogeography, and extinction5
- New sharks and rays from the Cenomanian and Turonian of Charentes, France5
- A new selachian fauna from the Late Maastrichtian of Texas (Upper Cretaceous/Navarroan; Kemp Formation)5
Each of the 404 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. 143 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 Ginglymostomatidae
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Ginglymostomatidae 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.
The description on this site
- 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 itOrectolobiformes through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Gill 1862)