Broiliellus
Broiliellus is an extinct genus of dissorophoid temnospondyl within the family Dissorophidae. Broiliellus is most closely related to the genus Dissorophus, and both have been placed in the subfamily Dissorophinae. Broiliellus is known from five species from the Early Permian: the type species is Broiliellus texensis, and the other species are Broiliellus brevis, Broiliellus olsoni, Broiliellus arroyoensis, and Broiliellus reiszi. An additional species, Broiliellus novomexicanus, which was originally named Aspidosaurus novomexicanus, is now thought to fall outside the genus as a member of the subfamily Eucacopinae.

Smokeybjb · CC BY-SA 3.0 · 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
- DissorophinaePBDB
- Diet
- carnivorePBDB, for Olsoniformes
- Life habit
- ground dwellingPBDB, for Olsoniformes
- Motility
- actively mobilePBDB, for Temnospondyli
- Environment
- brackish,freshwater,terrestrialPBDB, for Tetrapoda
Time the record covers
At least 6.8 million years on record.
The record covers at least 290.1 Mya to 283.3 Mya. No occurrence read is dated outside 298.9 Mya to 274.4 Mya.
7 occurrences of Broiliellus on record, most of them in the Permian. 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
7 occurrences- Permian100%
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
4 formations
- Waggoner Ranch Formation · Wichita Group2
- Arroyo Formation · Clear Fork Group1
- Archer City Formation · Wichita Group1
- El Cobre Canyon Formation · Cutler Group1
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The named rock units Broiliellus 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.
Broiliellus and its relatives
PermianWhere Broiliellus and its relatives were recorded in the Permian.
Found in the same rock
14 taxa- Dimetrodon2 sites
- Araeoscelis casei1 site
- Captorhinus1 site
- Captorhinus aguti1 site
- Captorhinus laticeps1 site
- Eryops1 site
- Glaucosaurus megalops1 site
- Mycterosaurus longiceps1 site
- Ophiacodon1 site
- Pantylus cordatus1 site
- Reiszorhinus olsoni1 site
- Sphenacodon ferox1 site
- Trimerorhachis1 site
- Varanosaurus wichitaensis1 site
The Paleobiology Database records 5 sites for Broiliellus, 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
6 references- Two new species of Broiliellus (amphibians) from the Permian of Texas2
- A new dissorophid (Temnospondyli, Dissorophoidea) from the Early Permian of New Mexico (United States)1
- Vertebrate biostratigraphy and biochronology of the upper Paleozoic Dunkard Group, Pennsylvania–West Virginia–Ohio, USA1
- Early evolution of the dissorophid amphibians1
- Vertebrate faunal horizons in the Texas Permo-Carboniferous red beds1
- Broiliellus, a new genus of amphibians from the Permian of Texas1
Each of the 7 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. 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 content2
Picture of Broiliellus
- Source
- Wikipedia/Commons
- Credit
- Smokeybjb
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Broiliellus arroyoensis · fmnh:ur:431
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
- Source
- Wikipedia, “Broiliellus”
- 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 itDissorophinae through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Williston 1914