Ischyodus bifurcatus
No picture of Ischyodus bifurcatus was found. Wikidata and iDigBio were searched and had none. Wikipedia has a picture filed under this name, but nothing tied it to Ischyodus bifurcatus itself, so it was not used. 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 bifurcatus, 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 11 million years on record.
The record covers at least 83.6 Mya to 72.2 Mya. No occurrence read is dated outside 143.1 Mya to 61.66 Mya.
20 occurrences of Ischyodus bifurcatus on record, most of them in the Late Cretaceous. 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
20 occurrencesThese 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
11 formations
- Rybushka Formation3
- Navesink Formation · Monmouth Group3
- Marshalltown Formation · Matawan Group2
- Mount Laurel Formation · Monmouth Group2
- Judith River Formation2
- Tar Heel Formation · Black Creek Group1
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The named rock units Ischyodus bifurcatus 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.
Ischyodus bifurcatus and its relatives
Late CretaceousWhere Ischyodus bifurcatus and its relatives were recorded in the Late Cretaceous.
Found in the same rock
361 taxa- Archaeolamna kopingensis13 sites
- Squalicorax kaupi13 sites
- Ischyrhiza mira12 sites
- Brachyrhizodus wichitaensis10 sites
- Scapanorhynchus texanus10 sites
- Squalicorax pristodontus10 sites
- Paranomotodon angustidens9 sites
- Rhombodus levis9 sites
- Squatina (Cretascyllium) hassei9 sites
- Carcharias samhammeri8 sites
- Paralbula casei8 sites
- Anomoeodus phaseolus7 sites
- Enchodus ferox7 sites
- Hybodus7 sites
- Odontaspis aculeatus7 sites
- Protolamna borodini7 sites
- Carcharias holmdelensis6 sites
- Hadrosauridae6 sites
- Cretalamna appendiculata5 sites
- Enchodus5 sites
- Plicatoscyllium globidens5 sites
- Stephanodus5 sites
- Trionychidae5 sites
- Carcharias hardingi4 sites
The Paleobiology Database records 20 sites for Ischyodus bifurcatus, 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
18 references- Additional fish records from the Judith River Formation (Campanian) of Montana2
- Ischyodus bifurcatus, a new species of chimaeroid fish from the Upper Cretaceous of New Jersey2
- New vertebrate microfossils expand the chondrichthyan and actinopterygian fauna of the Maastrichtian-Danian Hornerstown Formation in New Jersey1
- Marine fishes (Chondrichthyes, Holocephali, Actinopterygii) from the Upper Cretaceous (Campanian) Rybushka Formation near Beloe Ozero, Saratov Oblast, Russia1
- The Late Cretaceous chimaeroid fish, Ischyodus bifurcatus Case (Chondrichthyes: Holocephali), from California, USA, and its paleobiogeographical significance1
- Marine vertebrates from the Santonian coastal carbonates of northwestern Germany - a tool for the reconstruction of a Proto-North Sea Basin intertidal dinosaur-exchange bridge1
- A pterosaurian vertebra from the Upper Cretaceous of the Saratov Region1
- Vertebrate Paleontology and Stratigraphy of the Late Cretaceous Holmdel Park Site, Monmouth County, New Jersey1
- A new species of chimaeroid fish from the Upper Cretaceous of the Saratov region, Russia1
- Occurrence of the chimaeroid Ischyodus bifurcatus Case in the Cusseta Formation (Upper Cretaceous, Campanian) of western Georgia and its distribution1
- Alphadon (Marsupialia) and Multituberculata (Allotheria) in the Cretaceous of eastern North America1
- A guide to the Frankstown vertebrate fossil locality (Upper Cretaceous), Prentiss County, Mississippi1
Each of the 20 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. 6 further references are not listed. 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 bifurcatus was found. Wikidata and iDigBio were searched and had none.
Wikipedia has a picture filed under this name, but nothing tied it to Ischyodus bifurcatus itself, so it was not used.
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 bifurcatus, or no answer at all. This entry cannot say which.
No 3D scan of Ischyodus bifurcatus 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 Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Case 1978