Thomasinotus

Thomasinotus is an extinct genus of small prehistoric ray-finned fish that lived in the Induan age of the Early Triassic epoch in what is now Madagascar. It belongs to the early neopterygian family Parasemionotidae together with Albertonia, Candelarialepis, Icarealcyon, Jacobulus, Lehmanotus, Parasemionotus, Qingshania, Stensioenotus, Suius, and Watsonulus.

Thomasinotus

GleisReis · CC BY-SA 4.0 · 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
ParasemionotidaePBDB
Diet
grazer, detritivorePBDB, for Parasemionotidae
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At most 300 thousand years on record.

Every occurrence read is dated to somewhere between 251.1 Mya and 250.8 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Triassic — about 3 of 3 occurrencesEarly Triassic251–251 Mya — about 0.2 occurrences251–251 Mya — about 0.4 occurrences251–251 Mya — about 0.4 occurrences251–251 Mya — about 0.4 occurrences251–251 Mya — about 0.4 occurrences251–251 Mya — about 0.4 occurrences251–251 Mya — about 0.4 occurrences251–251 Mya — about 0.2 occurrences251.6 Mya250.3 Mya

3 occurrences of Thomasinotus on record, most of them in the Early Triassic. 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

3 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

Middle Sakamena — 21.71°S, 45.18°E

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The named rock units Thomasinotus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Thomasinotus and its relatives

Early Triassic

Where Thomasinotus and its relatives were recorded in the Early Triassic.

Found in the same rock

35 taxa

The Paleobiology Database records 3 sites for Thomasinotus, 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

3 references

Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Thomasinotus

Credit
GleisReis
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Thomasinotus 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 itParasemionotidae through timeFormations of the Early TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lehman 1952