Ischyodus williamsae
No picture of Ischyodus williamsae 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 Ischyodus williamsae, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IschyodusPBDB
- Diet
- carnivorePBDB, for Chimaeriformes
- Life habit
- nektobenthicPBDB, for Chimaeriformes
- Motility
- actively mobilePBDB, for Chimaeriformes
Time the record covers
At least 2.4 million years on record.
The record covers at least 61.66 Mya to 59.24 Mya. No occurrence read is dated outside 66 Mya to 56 Mya.
5 occurrences of Ischyodus williamsae on record, most of them in the Paleocene. 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
5 occurrences- Paleocene100%
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
3 formations
- Clayton Formation3
- Hornerstown Formation · Rancocas Group1
- Lower Aquia Formation1
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The named rock units Ischyodus williamsae has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Ischyodus williamsae and its relatives
PaleoceneWhere Ischyodus williamsae and its relatives were recorded in the Paleocene.
Found in the same rock
56 taxa- Acipenseridae1 site
- Bullata semen1 site
- Callianassa mortoni1 site
- Callorhinchus phillipsi1 site
- Calyptraea1 site
- Carcharias cuspidatus1 site
- cf. Tornatellaea cretacea appressa1 site
- Clavipholas1 site
- Conopeum damicornis1 site
- Cretalamna appendiculata1 site
- Crocodylia1 site
- Cylichna1 site
- Dasyatis crosswickense1 site
- Edaphodon mantelli1 site
- Eulima clara1 site
- Glycymeris idonea1 site
- Hexanchus1 site
- Hexanchus microdon1 site
- Hoploparia tennesseensis1 site
- Hypolophites hutchinsi1 site
- Hypolophodon sylvestris1 site
- Jupiteria1 site
- Latirus1 site
- Linuparus canadensis1 site
The Paleobiology Database records 5 sites for Ischyodus williamsae, 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
4 references- Paleocene chimaeroid fishes (Chondrichthyes: Holocephali) from the eastern United States, including two new species of Callorhinchus2
- Paleocene turtles and crocodilians directly above the Cretaceous/Tertiary (K/T) boundary in Pulaski County, Illinois1
- A new selachian fauna from the Lower Hornerstown Formation (Early Paleocene/Montian) of Monmouth County, New Jersey1
- A New Species of Chimaeroid Fish from the Upper Paleocene (Thanetian) of Maryland, USA1
Each of the 5 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 content0
No picture of Ischyodus williamsae 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 Ischyodus williamsae, or no answer at all. This entry cannot say which.
No 3D scan of Ischyodus williamsae 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itIschyodus through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Case 1991