Dicranogmus
No picture of Dicranogmus was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dicranogmus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TrochurinaePBDB
- Diet
- carnivorePBDB, for Lichida
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Lichidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At least 16 million years on record.
The record covers at least 443.1 Mya to 426.7 Mya. No occurrence read is dated outside 449.5 Mya to 422.7 Mya.
22 occurrences of Dicranogmus on record, most of them in the Silurian. 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
22 occurrences- Ordovician9%
- Silurian91%
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
7 formations
- Delorme Formation9
- Cape Phillips Formation6
- Whittaker Formation2
- Kopanina Formation1
- Pentamerus Bjerg Formation1
- Tirekhtyakh Formation1
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The named rock units Dicranogmus 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.
Dicranogmus and its relatives
SilurianWhere Dicranogmus and its relatives were recorded in the Silurian.
Found in the same rock
386 taxa- Ceratocephala8 sites
- Deiphon8 sites
- Sphaerexochus dimorphus8 sites
- Acidaspis7 sites
- Borealarges tuckerae6 sites
- Dudleyaspis6 sites
- Leonaspis6 sites
- Struszia6 sites
- Diacalymene gabrielsi5 sites
- Encrinurus5 sites
- Hedeina5 sites
- Morinorhynchus crispus5 sites
- Pentlandina harperi5 sites
- Ptychopleurella lenzi5 sites
- Spirinella struszi5 sites
- Atrypa (Gotatrypa) variabilis4 sites
- Borealarges mikulicorum4 sites
- Borealarges renodis4 sites
- Borealarges variabilis4 sites
- Calymene4 sites
- Calymene polgari4 sites
- Ceratocephala (Ceratocephalina)4 sites
- Cyrtia alatiformis4 sites
- Dicoelosia4 sites
The Paleobiology Database records 19 sites for Dicranogmus, 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- Late Ordovician and Silurian lichid trilobites from northwestern Canada: eight new species from subfamilies Lichinae, Platylichinae, and Trochurinae10
- Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago3
- Silurian Lichid Trilobites from Northwestern Canada: Ontogeny and Phylogeny of Lichids1
- The regional stratotype section and point for the base of the Hirnantian Stage (the uppermost Ordovician) at Mirny Creek, Omulev Mountains, Northeast Russia1
- Validity and composition of the Silurian trilobite genera <i>Borealarges</i> and <i>Dicranogmus</i>, with new species from the Canadian Arctic1
- Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic)1
- Trilobite assemblages of the North Atlantic Region1
- The lichid trilobite Radiolichas in the Silurian of Arctic Canada and Gotland, Sweden1
- A Bohemian-type Silurian (Wenlock) pelecypod faunule from arctic Canada1
- Silurian trilobites from Hall Land and Nyeboe Land, western Greenland1
- The Trilobites of the Leptæna Limestone in Dalarne1
Each of the 22 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 content0
No picture of Dicranogmus was found. Wikidata and iDigBio were searched and had none.
Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Dicranogmus, or no answer at all. This entry cannot say which.
No 3D scan of Dicranogmus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTrochurinae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hawle and Corda 1847)