Eiffelia
Eiffelia is an extinct genus of sponges known from the Middle Cambrian Burgess Shale as well as several Early Cambrian small shelly fossil deposits. It is named after Eiffel Peak, which was itself named after the Eiffel Tower. It was first described in 1920 by Charles Doolittle Walcott. It belongs in the Hexactinellid stem group. 60 specimens of Eiffelia are known from the Greater Phyllopod bed, where they comprise 0.11% of the community.

Department of Paleobiology · CC0 · 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
- EiffeliidaePBDB
- Diet
- suspension feederPBDB
- Life habit
- epifaunalPBDB
- Motility
- stationary, attachedPBDB
- Vision
- blindPBDB, for Heteractinida
- Environment
- marinePBDB, for Heteractinida
Time the record covers
At least 19 million years on record.
The record covers at least 516 Mya to 497 Mya. No occurrence read is dated outside 525.5 Mya to 486.85 Mya.
95 occurrences of Eiffelia 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
95 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
20 formations
- Shabakty Formation19
- Beshtash Formation19
- Burgess Shale Formation · Chancellor Group11
- Parara Formation10
- Ajax Limestone Formation6
- Parara Limestone Formation6
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The named rock units Eiffelia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Eiffelia and its relatives
CambrianWhere Eiffelia and its relatives were recorded in the Cambrian.
Found in the same rock
462 taxa- Chancelloria49 sites
- Archiasterella25 sites
- Pelagiella subangulata25 sites
- Sinosachites25 sites
- Hippopharangites dailyi24 sites
- Pojetaia runnegari23 sites
- Eremactis mawsoni22 sites
- Triplicatella disdoma19 sites
- Brachiopoda18 sites
- Hyptiotheca karraculum18 sites
- Microcornus petilus17 sites
- Anabarella australis16 sites
- Australohalkieria parva16 sites
- Cupitheca16 sites
- Echinodermata16 sites
- Lenastella mucronata16 sites
- Hyolitha15 sites
- Lapworthella fasciculata15 sites
- Allonnia tripodophora14 sites
- Microcornus14 sites
- Torellella14 sites
- Cambroclavus clavus13 sites
- Hyolithellus micans13 sites
- Micrina etheridgei13 sites
The Paleobiology Database records 67 sites for Eiffelia, 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
20 references- Stratigrafiya i fauna pogranichnykh sloyev Kembriya i Dokembriya Malogo Karatau [Stratigraphy and fauna of the Precambrian-Cambrian boundary beds of the Malyy Karatau]38
- Early Cambrian fossils from South Australia21
- The Cambrian biostratigraphy of the Stansbury Basin, South Australia7
- Paleoecology of the Greater Phyllopod Bed community, Burgess Shale6
- Skeletal fossils and microfacies analysis of the lowermost Cambrian in the southwestern margin of the North China Platform4
- Sponges of the Middle Cambrian Burgess Shale and Stephen Formations, British Columbia4
- Skeletonized microfossils from the Lower–Middle Cambrian transition of the Cantabrian Mountains, northern Spain2
- An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia)1
- First skeletal microfauna from the Cambrian Series 3 of the Jordan Rift Valley (Middle East)1
- Small shelly fauna from the upper Lower Cambrian Bastion and Ella Island Formations, North-East Greenland1
- Cambrian microfauna and palaeoecology of the Campo Pisano Formation at Gutturu Pala (Iglesiente, SW Sardinia, Italy)1
- The Burgess Shale and associated Cambrian formations west of the Fossil Gully Fault Zone on Mount Stephen, British Columbia1
Each of the 95 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. 8 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 Eiffelia
- Source
- Wikipedia/Commons
- Credit
- Department of Paleobiology
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Eiffelia 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.
The description on this site
- Source
- Wikipedia, “Eiffelia”
- 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 itEiffeliidae through timeFormations of the CambrianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1920