Zarhachis crassangulum
via iDigBio · via iDigBio. 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
- ZarhachisPBDB
- Diet
- piscivorePBDB, for Platanistidae
- Life habit
- aquatic, depth=surfacePBDB, for Cetacea
- Motility
- actively mobilePBDB, for Cetacea
- Environment
- marine,freshwaterPBDB, for Odontoceti
Time the record covers
At most 4.4 million years on record.
Every occurrence read is dated to somewhere between 15.98 Mya and 11.63 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Zarhachis crassangulum on record, most of them in the Miocene. 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
6 occurrences- Miocene100%
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
2 formations
- Calvert Formation · Chesapeake Group5
- Choptank Formation · Chesapeake Group1
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The named rock units Zarhachis crassangulum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Zarhachis crassangulum and its relatives
MioceneWhere Zarhachis crassangulum and its relatives were recorded in the Miocene.
Found in the same rock
146 taxa- Acer3 sites
- Albula3 sites
- Alnus3 sites
- Carcharhinus3 sites
- Carya3 sites
- Castanea3 sites
- Cicuta3 sites
- Corylus3 sites
- Cyperaceae3 sites
- Dasyatis3 sites
- Ilex3 sites
- Juglans3 sites
- Lagodon rhomboides3 sites
- Leptophoca lenis3 sites
- Liquidambar3 sites
- Manikara sp.3 sites
- Merluccius3 sites
- Mesocetus siphunculus3 sites
- Mustelus3 sites
- Nyssa3 sites
- Odontoceti3 sites
- Ostrya3 sites
- Otodus megalodon3 sites
- Picea3 sites
The Paleobiology Database records 5 sites for Zarhachis crassangulum, 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- Geology and biostratigraphy of the Potomac River Cliffs at Stratford Hall, Westmoreland County, Virginia3
- Mark D. Uhen's opinions1
- USNM Chesapeake Group Cetacean Collection Data1
- Systematic Paleontology: Mammalia1
Each of the 6 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
Picture of Zarhachis crassangulum
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Zarhachis crassangulum 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 itZarhachis through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Case 1904)