Ectenocrinus simplex

via iDigBio · CC0 · 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
- EctenocrinusPBDB
- Diet
- suspension feederPBDB, for Ectenocrinus
- Life habit
- intermediate-level epifaunalPBDB, for Ectenocrinus
- Motility
- stationary, attachedPBDB, for Ectenocrinus
- Vision
- blindPBDB, for Crinoidea
- Environment
- marinePBDB, for Echinodermata
Time the record covers
At least 3.6 million years on record.
The record covers at least 453.8 Mya to 450.2 Mya. No occurrence read is dated outside 458.2 Mya to 445.2 Mya.
19 occurrences of Ectenocrinus simplex on record, most of them in the Ordovician. 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
19 occurrences- Ordovician100%
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
- Wise Lake Formation · Galena Group3
- Dunleith Formation · Galena Group3
- Martinsburg Formation2
- Ottawa Formation · Trenton Group2
- Denley Limestone Formation1
- Prosser Limestone Formation1
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The named rock units Ectenocrinus simplex has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Ectenocrinus simplex and its relatives
OrdovicianWhere Ectenocrinus simplex and its relatives were recorded in the Ordovician.
Found in the same rock
201 taxa- Carabocrinus8 sites
- Carabocrinus radiatus8 sites
- Cremacrinus8 sites
- Cupulocrinus8 sites
- Quienquecaudex springeri7 sites
- Rhaphanocrinus7 sites
- Tanaocystis7 sites
- Edrioaster bigsbyi6 sites
- Merocrinus6 sites
- Glyptocrinus5 sites
- Porocrinus5 sites
- Promopalaeaster5 sites
- Abludoglyptocrinus4 sites
- Astrocystites4 sites
- Cincinnaticrinus4 sites
- Cincinnaticrinus varibrachialus4 sites
- Cremacrinus guttenbergensis4 sites
- Cyclocystoides4 sites
- Dendrocrinus4 sites
- Eumorphocystis4 sites
- Isotelus gigas4 sites
- Ptychocrinus4 sites
- Pycnocrinus4 sites
- <Archaeocrinid>3 sites
The Paleobiology Database records 17 sites for Ectenocrinus simplex, 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
11 references- Upper Mississippi Valley Champlainian and Cincinnatian echinoderms7
- New classification of the "Heterocrinidae"2
- Miller, 18892
- A crinoid fauna and a new species of Pycnocrinus from the Martinsburg Formation (Upper Ordovician), lower Hudson Valley, New York1
- An Upper Ordovician faunal assemblage from the Neuville Formation of Québec, including an exceptionally preserved soft bodied sea anemone, Paleocerianthus neuvillii n. sp1
- Deepwater occurrence of a new Glyptocrinus (Crinoidea, Camerata) from the Late Ordovician of southwestern Ohio and northern Kentucky: revision of crinoid paleocommunity composition1
- The Walcott-Rust Quarry: Middle Ordovician Trilobite Konservat-Lagerstätten1
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America1
- Upper Ordovician tempestites from Swatara Gap, Pennsylvania: depositional processes affecting the sediments and paleoecology of the fossil faunas1
- Fossil Communities of the Middle Trenton Group (Ordovician) of New York State1
- Echinodermata of the Ottawa Formation of the Ottawa-St. Lawrence lowland1
Each of the 19 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. 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 Ectenocrinus simplex
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itEctenocrinus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1847)