Echinocyamus
Echinocyamus is a genus of echinoderms belonging to the family Fibulariidae.

Hans Hillewaert · CC BY-SA 4.0 · 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
- FibulariidaePBDB
- Diet
- detritivorePBDB, for Clypeasteroida
- Life habit
- semi-infaunalPBDB, for Clypeasteroida
- Motility
- slow-movingPBDB, for Clypeasteroida
- Vision
- limitedPBDB, for Echinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 40 million years on record.
The record covers at least 41.03 Mya to 129 ka. No occurrence read is dated outside 48.07 Mya to 11.7 ka.
72 occurrences of Echinocyamus on record, most of them in the Eocene. 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
72 occurrences- Eocene44%
- Oligocene15%
- Miocene35%
- Pliocene4%
- Pleistocene1%
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
24 formations
- Castle Hayne Formation · Jackson Group7
- Moodys Branch Formation5
- Dammam Formation5
- Crystal River Limestone Formation · Ocala Group3
- Tagpochau Formation3
- Borutta Formation2
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The named rock units Echinocyamus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 29 occurrences have no formation on record, which is common for older literature.
Echinocyamus and its relatives
EoceneWhere Echinocyamus and its relatives were recorded in the Eocene.
Found in the same rock
782 taxa- Echinolampas11 sites
- Pecten9 sites
- Schizaster9 sites
- Ostrea8 sites
- Clypeaster7 sites
- Periarchus lyelli7 sites
- Chlamys6 sites
- Genocidaris6 sites
- Spatangus6 sites
- Turritella6 sites
- Aequipecten5 sites
- Brissopsis5 sites
- Eupatagus antillarum5 sites
- Prionocidaris5 sites
- Psammechinus5 sites
- Rhyncholampas5 sites
- Arbacina4 sites
- Bryozoa4 sites
- Cardium4 sites
- Conus4 sites
- Durhamella ocalana4 sites
- Gigantopecten4 sites
- Kuphus4 sites
- Maretia4 sites
The Paleobiology Database records 65 sites for Echinocyamus, 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
33 references- Fossil echinoids from the Marshall Islands11
- Stratigraphic Distribution of Paleocene and Eocene Fossils in the Eastern Gulf Coast Region6
- Echinoid assemblages from the early Miocene of Funtanazza (Sardinia): A tool for reconstructing depositional environments along a shelf gradient5
- The Echinoids of the Middle Eocene Warley Hill Formation, Santee Limestone, and Castle Hayne Limestone of North and South Carolina5
- Echinides éocènes et miocènes du Qatar (Golfe Persique)5
- Paleontologie de Madagascar. XIV. Fossiles du Miocene Marine4
- Summary of the geology of Florida and a guidebook to the classic exposures3
- Geology of Saipan, Mariana Islands: Part 1. General Geology3
- Palaeoecology and taphonomy of spatangoid-dominated echinoid assemblages: A case study from the Early-Middle Miocene of Sardinia, Italy2
- Diversity patterns and biostratigraphy of Cenozoic echinodems from Florida2
- L'Oligocene e il Miocene della Somalia. Stratigrafia, Tettonica, Paleontologia (Macroforaminferi, Coralli, Molluschi)2
- Cenozoic irregular echinoids of the Eastern United States2
Each of the 72 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. 21 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 Echinocyamus
- Source
- Wikipedia/Commons
- Credit
- Hans Hillewaert
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Echinocyamus was found in MorphoSource and Sketchfab.
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
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 itFibulariidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. van Phelsum 1774