Indocoelacanthus robustus

Indocoelacanthus is an extinct genus of prehistoric freshwater coelacanth from the early-mid Jurassic of India. It contains a single species, I. robustus from the Toarcian-aged upper Kota Formation of Andhra Pradesh. The holotype specimen, consisting of an almost complete head and trunk squamation, was found in riverine sediments in the Pranhita-Godavari Valley at Boraigudem limestone ridge, about 30 kilometers southeast of Sironcha. In addition to the holotype, several other referred specimens consisting of the caudal fin, fin rays, and neural arches have also been identified. All specimens are preserved in the museum of the Indian Statistical Institute.

No picture of Indocoelacanthus robustus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Indocoelacanthus robustus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
IndocoelacanthusPBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At most 14 million years on record.

Every occurrence read is dated to somewhere between 184.2 Mya and 170.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 2 of 3 occurrencesEarly JurassicMiddle Jurassic — about 1 of 3 occurrencesMiddle Jurassic184–184 Mya — about 0.1 occurrences184–183 Mya — about 0.1 occurrences183–183 Mya — about 0.1 occurrences183–182 Mya — about 0.1 occurrences182–182 Mya — about 0.1 occurrences182–181 Mya — about 0.1 occurrences181–181 Mya — about 0.1 occurrences181–180 Mya — about 0.1 occurrences180–180 Mya — about 0.1 occurrences180–179 Mya — about 0.1 occurrences179–179 Mya — about 0.1 occurrences179–179 Mya — about 0.1 occurrences179–178 Mya — about 0.1 occurrences178–178 Mya — about 0.1 occurrences178–177 Mya — about 0.1 occurrences177–177 Mya — about 0.1 occurrences177–176 Mya — about 0.1 occurrences176–176 Mya — about 0.1 occurrences176–175 Mya — about 0.1 occurrences175–175 Mya — about 0.1 occurrences175–174 Mya — about 0.1 occurrences174–174 Mya — about 0.1 occurrences174–173 Mya — about 0.1 occurrences173–173 Mya — about 0.1 occurrences173–172 Mya — about 0.1 occurrences172–172 Mya — about 0.1 occurrences172–171 Mya — about 0.1 occurrences171–171 Mya — about 0.1 occurrences184.7 Mya170.4 Mya

3 occurrences of Indocoelacanthus robustus on record, most of them in the Early Jurassic. 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

  • Kota Formation · Gondwana GroupAndhra Pradesh · IN · 184.2–170.9 Mya3
Kota — 18.92°N, 79.98°EKota — 19.19°N, 79.74°EKota — 18.69°N, 80.22°E

Loading coastlines…

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

Indocoelacanthus robustus and its relatives

Early Jurassic

Where Indocoelacanthus robustus and its relatives were recorded in the Early Jurassic.

Found in the same rock

1 taxon

The Paleobiology Database records 3 sites for Indocoelacanthus robustus, and this reads all of them. The number is how many of those sites it was catalogued from too.

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 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 content0

No picture of Indocoelacanthus robustus was found. Wikipedia, Wikidata and iDigBio were searched and had none.

Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Indocoelacanthus robustus, or no answer at all. This entry cannot say which.

No 3D scan of Indocoelacanthus robustus 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

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 itIndocoelacanthus through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jain 1974