Trichiuridae
The cutlassfishes are about 45 species of predatory ray-finned fish in the family Trichiuridae of the order Scombriformes found in seas throughout the world. Fish of this family are long, slender, and generally steely blue or silver in colour, giving rise to their name. They have reduced or absent pelvic and caudal fins, giving them an eel-like appearance, and large fang-like teeth.

G.M. · 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
- ScombriformesPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 59 million years on record.
The record covers at least 59.24 Mya to 129 ka. No occurrence read is dated outside 143.1 Mya to 11.7 ka.
197 occurrences of Trichiuridae on record, most of them in the Eocene. 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
197 occurrences- Early Cretaceousunder 1%
- Late Cretaceousunder 1%
- Paleocene2%
- Eocene42%
- Oligocene14%
- Miocene29%
- Pliocene4%
- Pleistocene7%
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
54 formations
- Selsey Formation · Bracklesham Group12
- Tallahatta Formation · Claiborne Group10
- London Clay Formation · Thames Group9
- Gosport Sand Formation · Claiborne Group4
- Lisbon Formation · Claiborne Group3
- Elmore Formation · Bracklesham Group3
Loading coastlines…
The named rock units Trichiuridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 30 further formations hold fewer occurrences each and are not listed. 88 occurrences have no formation on record, which is common for older literature.
Trichiuridae and its relatives
EoceneWhere Trichiuridae and its relatives were recorded in the Eocene.
Found in the same rock
2,626 taxa- Maurolicus muelleri30 sites
- Sphyraena30 sites
- Myliobatis27 sites
- Trichiurus25 sites
- Trichiurides sagittidens24 sites
- Lepidopus23 sites
- Cylindracanthus rectus21 sites
- Dasyatis21 sites
- Bregmaceros albyi19 sites
- Rhinoptera19 sites
- Physogaleus secundus18 sites
- Striatolamia macrota18 sites
- Hypotodus verticalis17 sites
- Syngnathus albyi17 sites
- Palaeocybium proosti16 sites
- Brachycarcharias lerichei15 sites
- Carcharias hopei15 sites
- Abdounia14 sites
- Carcharhinus14 sites
- Lesueurigobius14 sites
- Pristis lathami14 sites
- Hoplobrotula13 sites
- Odontaspis winkleri13 sites
- Aetobatus irregularis12 sites
The Paleobiology Database records 148 sites for Trichiuridae, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
104 references- The Selsey Division (Bracklesham Group) at Lee-on-the-Solent, Gosport, (Hants)12
- 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 otoliths11
- A new bathyal shark fauna from the Pleistocene sediments of Fiumefreddo (Sicily, Italy)7
- Données récentes sur Les téléostéens du Miocène et du Pliocéne d'Italie6
- Messinian marine fish communities of the Mediterranean Sea5
- Thurmond and Jones, 19815
- Fauna Fosila din Oligocenul de la Piatra Neamt5
- Middle Miocene (Badenian) fishes from the north-west of the Fore-Carpathian Basin4
- The English Chalk and London Clay: two remarkable British bony fish Lagerstatten4
- New taxonomic synopses and revision of the scombroid fishes (Scombroidei, Perciformes), including billfishes, from the Cenozoic of territories of the former USSR4
- Fish otoliths from the pre-evaporitic (Early Messinian) sediments of northern Italy: their stratigraphic and palaeobiogeographic significance4
- Casier, 19664
Each of the 197 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. 92 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 Trichiuridae
- Source
- Wikipedia/Commons
- Credit
- G.M.
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Trichiuridae was found in Sketchfab.
Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Cutlassfish”
- 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 itScombriformes through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1810