Cardiocephalus sternbergi
No picture of Cardiocephalus sternbergi 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 Cardiocephalus sternbergi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CardiocephalusPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At most 47 million years on record.
Every occurrence read is dated to somewhere between 298.9 Mya and 251.902 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
8 occurrences of Cardiocephalus sternbergi 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
8 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
- Arroyo Formation · Clear Fork Group4
- Garber Sandstone Formation · Sumner Group2
- Petrolia Formation · Wichita Group1
- Hennessey Formation1
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The named rock units Cardiocephalus sternbergi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cardiocephalus sternbergi and its relatives
PermianWhere Cardiocephalus sternbergi and its relatives were recorded in the Permian.
Found in the same rock
77 taxa- Captorhinus aguti4 sites
- Acheloma3 sites
- Brachydectes newberryi3 sites
- Diadectes3 sites
- Diplocaulus3 sites
- Diplocaulus magnicornis3 sites
- Eryops megacephalus3 sites
- Trimerorhachis insignis3 sites
- Archeria2 sites
- Diadectes tenuitectes2 sites
- Dimetrodon limbatus2 sites
- Dimetrodon loomisi2 sites
- Edaphosaurus2 sites
- Edaphosaurus pogonias2 sites
- Eryops2 sites
- Micraroter erythrogeios2 sites
- Ophiacodon retroversus2 sites
- Orthacanthus2 sites
- Orthacanthus platypternus2 sites
- Orthacanthus texensis2 sites
- Tersomius texensis2 sites
- Zatrachys2 sites
- Acanthodes1 site
- Acleistorhinus pteroticus1 site
The Paleobiology Database records 6 sites for Cardiocephalus sternbergi, 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
7 references- New Specimens of Xenacanth and Hybodont Sharks (Elasmobranchii: Xenacanthida and Hybodontoidea) from the Lower Permian of Southwestern Oklahoma2
- A Lower Permian vertebrate fauna from southern Oklahoma1
- Early Permian Vertebrates1
- Revision of the Gymnarthridae - American Permian Microsaurs1
- Vertebrate faunal horizons in the Texas Permo-Carboniferous red beds1
- New or little known reptiles and amphibians from the Permian (?) of Texas1
- Permische Stegocephalen und Reptilien aus Texas1
Each of the 8 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

Synchrotron Imaging scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Cardiocephalus sternbergi · amnh:fm:4763a
No picture of Cardiocephalus sternbergi 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 Cardiocephalus sternbergi, or no answer at all. This entry cannot say which.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCardiocephalus through timeFormations of the PermianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Broili 1904