Mustelus lunulatus

The sicklefin smooth-hound is a houndshark of the family Triakidae. Even some species look similar to Carcharhinus family, mustelus second dorsal fin is much bigger. It is found on the continental shelves of the eastern Pacific, between latitudes 33° N and 7° N. The difference between sharptooth smooth-hound and M. lunulatus, is that the latter's second dorsal fin origin far in advance of the anal fin. It can reach a length of up to 1.7 m. The reproduction of this shark is ovoviviparous.

Mustelus lunulatus

D Ross Robertson · 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
sicklefin smooth-houndPBDB
Sits inside
MustelusPBDB
Diet
carnivorePBDB, for Carcharhiniformes
Life habit
nektonicPBDB, for Carcharhiniformes
Motility
actively mobilePBDB, for Carcharhiniformes

Time the record covers

At most 6.3 million years on record.

The one occurrence read is dated to somewhere between 11.63 Mya and 5.333 Mya, which is a dating window rather than a span.

Miocene — about 1 of 1 occurrenceMiocenePliocene — about 0 of 1 occurrence12–11 Mya — about 0.0 occurrences11–11 Mya — about 0.0 occurrences11–11 Mya — about 0.0 occurrences11–11 Mya — about 0.0 occurrences11–10 Mya — about 0.0 occurrences10–10 Mya — about 0.0 occurrences10–9.9 Mya — about 0.0 occurrences9.9–9.7 Mya — about 0.0 occurrences9.7–9.5 Mya — about 0.0 occurrences9.5–9.2 Mya — about 0.0 occurrences9.2–9.0 Mya — about 0.0 occurrences9.0–8.7 Mya — about 0.0 occurrences8.7–8.5 Mya — about 0.0 occurrences8.5–8.2 Mya — about 0.0 occurrences8.2–8.0 Mya — about 0.0 occurrences8.0–7.8 Mya — about 0.0 occurrences7.8–7.5 Mya — about 0.0 occurrences7.5–7.3 Mya — about 0.0 occurrences7.3–7.0 Mya — about 0.0 occurrences7.0–6.8 Mya — about 0.0 occurrences6.8–6.5 Mya — about 0.0 occurrences6.5–6.3 Mya — about 0.0 occurrences6.3–6.0 Mya — about 0.0 occurrences6.0–5.8 Mya — about 0.0 occurrences5.8–5.6 Mya — about 0.0 occurrences5.6–5.3 Mya — about 0.0 occurrences12.1 Mya4.8 Mya

1 occurrence of Mustelus lunulatus on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

1 occurrences

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

1 formation

Uscari — 9.57°N, 82.57°W

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The named rock units Mustelus lunulatus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Mustelus lunulatus and its relatives

Miocene

Where Mustelus lunulatus and its relatives were recorded in the Miocene.

Found in the same rock

39 taxa

The Paleobiology Database records 1 site for Mustelus lunulatus, 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

1 reference

Each of the 1 occurrence 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 content2

Picture of Mustelus lunulatus

Credit
D Ross Robertson
Licence
Public Domain
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itMustelus through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jordan and Gilbert 1883