Electridae
Electridae is a family of bryozoans in the order Cheilostomatida.

Tigerente · CC BY-SA 3.0 · 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
- MembraniporoideaPBDB
- Diet
- suspension feederPBDB, for Cheilostomata
- Life habit
- epifaunalPBDB, for Cheilostomata
- Motility
- stationary, attachedPBDB, for Cheilostomata
- Vision
- blindPBDB, for Gymnolaemata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 121 million years on record.
The record covers at least 121.4 Mya to 129 ka. No occurrence read is dated outside 125.77 Mya to 11.7 ka.
118 occurrences of Electridae on record, most of them in the Early Cretaceous. The Paleobiology Database records this as a living group. 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
118 occurrences- Early Cretaceous19%
- Late Cretaceous17%
- Paleocene11%
- Eocene19%
- Oligocene2%
- Miocene9%
- Pliocene7%
- Pleistocene17%
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
40 formations
- Mesaverde Formation7
- Enokuchi Formation · Goshoura Group7
- Gault Formation6
- Clayton Formation · Midway Group5
- Moodys Branch Formation · Jackson Group5
- Kincaid Formation · Midway Group5
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The named rock units Electridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 25 occurrences have no formation on record, which is common for older literature.
Electridae and its relatives
Early CretaceousWhere Electridae and its relatives were recorded in the Early Cretaceous.
Found in the same rock
2,853 taxa- Conopeum15 sites
- Microporella ciliata13 sites
- Electra monostachys8 sites
- Elphidium8 sites
- Hippoporina8 sites
- Mulinia lateralis8 sites
- Nucula (Nucula) proxima8 sites
- Polydora8 sites
- Schizoporella8 sites
- Turritella8 sites
- Balanus7 sites
- Cliona7 sites
- Crepidula fornicata7 sites
- Crepidula plana7 sites
- Electra7 sites
- Epitonium7 sites
- Membranipora7 sites
- Nuculana acuta7 sites
- Teredo7 sites
- Abra aequalis6 sites
- Cotonopsis (Cotonopsis) lafresnayi6 sites
- Crepidula convexa6 sites
- Cryptosula pallasiana6 sites
- Cumingia tellinoides6 sites
The Paleobiology Database records 80 sites for Electridae, 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
43 references- Charixa Lang and Spinicharixa gen. nov., cheilostome bryozoans from the Lower Cretaceous15
- A mid-Cretaceous (Albian-Cenomanian) shell-rubble bryozoan fauna from the Goshoura Group, Kyushu, Japan10
- North American early Tertiary Bryozoa9
- Bryozoa from the "Mesaverde" Formation (Upper Cretaceous) of Southwestern Wyoming7
- Faunal Horizons of the Barton Beds in Hampshire7
- The Midway Group of Texas7
- Les bryozoaires cheilostomes du Néogène bétique (SE Espagne)4
- Checklist of megafossils from the James City Formation (Lower Pleistocene) at Johnson Point, Craven County, North Carolina4
- The fauna and paleoecology of the Late Pleistocene marine sediments of southeastern Virginia4
- The Tertiary Cheilostomatous Polyzoa of New Zealand4
- The fauna of the Ripley formation on Coon creek, Tennessee4
- Quaternary marine stratigraphy and geochronology in central West Greenland3
Each of the 118 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. 31 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 Electridae
- Source
- Wikipedia/Commons
- Credit
- Tigerente
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Electridae 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, “Electridae”
- 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 itMembraniporoidea through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. D'Orbigny 1851