Ellipsocephalus
Ellipsocephalus Zenker, 1833, is a genus of blind Cambrian trilobite, comprising benthic species inhabiting deep, poorly lit or aphotic habitats. E. hoffi is a common trilobite mainly from central Europe.

TheoricienQuantique · Public Domain · 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
- EllipsocephalinaePBDB
- Diet
- deposit feederPBDB, for Redlichiida
- Life habit
- low-level epifaunalPBDB, for Redlichiida
- Motility
- fast-movingPBDB, for Redlichiida
- Vision
- well-developedPBDB, for Ellipsocephalidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 11 million years on record.
The record covers at least 516 Mya to 504.5 Mya. No occurrence read is dated outside 538.8 Mya to 497 Mya.
46 occurrences of Ellipsocephalus on record, most of them in the Cambrian. 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
46 occurrences- Cambrian100%
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
13 formations
- Jince Formation14
- Usarzow Sandstone Formation8
- Ocieseki Sandstone Formation3
- Hanford Brook Formation3
- Skryje Formation3
- Gislov Formation3
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The named rock units Ellipsocephalus 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.
Ellipsocephalus and its relatives
CambrianWhere Ellipsocephalus and its relatives were recorded in the Cambrian.
Found in the same rock
155 taxa- Paradoxides (Eccaparadoxides) pusillus12 sites
- Lobocephalina emmrichi10 sites
- Conocoryphe8 sites
- Acadoparadoxides7 sites
- Ptychoparia striata7 sites
- Skreiaspis spinosus7 sites
- Ctenocephalus6 sites
- Paradoxides (Hydrocephalus)6 sites
- Phalacroma6 sites
- Conocoryphe sulzeri5 sites
- Hydrocephalus carens5 sites
- Strenuella (Comluella)5 sites
- Acrothele4 sites
- Agraulos ceticephalus4 sites
- Baltoparadoxides oelandicus4 sites
- Ceratocystis perneri4 sites
- Hyolithes4 sites
- Lingulella4 sites
- Parabailiela granulata4 sites
- Paradoxides4 sites
- Peronopsis4 sites
- Phalagnostus4 sites
- Solenopleurina tyrovicensis4 sites
- Acadolenus3 sites
The Paleobiology Database records 33 sites for Ellipsocephalus, 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- Jednostki litostratygraficzne kambru i gornego prekambru Gor Swietokrzyskich [Cambrian and Upper Precambrian lithostratigraphic units in the Holy Cross Mountains]11
- Trilobiti Ceskeho stredniho Kambria [Middle Cambrian trilobites of Bohemia]8
- Asturicystis havliceki sp. nov. (Echinodermata, Homostelea) from the Middle Cambrian of Bohemia (Barrandian area, Czech Republic)4
- Lower Cambrian (Branchian) trilobites and biostratigraphy of the Hanford Brook Formation, southern New Brunswick3
- Chlupáč et al., 19983
- Uppermost lower Cambrian biostratigraphy in Scania, Sweden3
- Miaolingian (Cambrian) trilobite biostratigraphy and carbon isotope chemostratigraphy in the Tingskullen drill core, Oland, Sweden2
- Early Cambrian trilobites from northern Scandinavia2
- The shelly fauna and biostratigraphy of the lower Cambrian (provisional series 2, stage 4) Evjevik Member, Ringstrand Formation in the Mjøsa area, Norway1
- Family Dibrachicystidae (Echinodermata: Rhombifera) from the “Middle” Cambrian of the Barrandian area, Czech Republic1
- New Middle Cambrian lingulate brachiopods from the Skryje-Týøovice area (Central Bohemia, Czech Republic)1
- Association of fossils and history of research at the Týřovice - “Pod hruškou” locality (Middle Cambrian, Skrje-Týřovice Basin, Barrandian area)1
Each of the 46 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 content1
Picture of Ellipsocephalus
- Source
- Wikipedia/Commons
- Credit
- TheoricienQuantique
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- 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 itEllipsocephalinae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Zenker 1833