Didymograptus protobalticus
No picture of Didymograptus protobalticus 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 Didymograptus protobalticus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DidymograptusPBDB
- Diet
- suspension feederPBDB, for Graptoloidea
- Life habit
- planktonicPBDB, for Graptoloidea
- Motility
- passively mobilePBDB, for Graptoloidea
- Vision
- blindPBDB, for Graptolithina
Time the record covers
At most 19 million years on record.
Every occurrence read is dated to somewhere between 486.85 Mya and 468 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
15 occurrences of Didymograptus protobalticus 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
15 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
3 formations
- Leetse Formation8
- Acoite Formation · Santa Victoria Group4
- Tøyen Shale Formation2
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The named rock units Didymograptus protobalticus 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.
Didymograptus protobalticus and its relatives
OrdovicianWhere Didymograptus protobalticus and its relatives were recorded in the Ordovician.
Found in the same rock
45 taxa- Tetragraptus phyllograptoides9 sites
- Oelandodus7 sites
- Paroistodus7 sites
- Paroistodus proteus7 sites
- Prioniodus7 sites
- Baltograptus vacillans5 sites
- Didymograptus balticus4 sites
- Acrotretida3 sites
- Baltograptus geometricus3 sites
- Biernatia3 sites
- Corymbograptus vfractus3 sites
- Graptolithus similis3 sites
- Nanorthis3 sites
- Paterula3 sites
- Didymograptus demissus2 sites
- Didymograptus filiformis2 sites
- Didymograptus holmi2 sites
- Didymograptus uniformis2 sites
- Expansograptus rigoletto2 sites
- Graptolithus constrictus2 sites
- Acrograptus gracilis1 site
- Athabascaella1 site
- Baltograptus varicosus1 site
- Caldariola glabra1 site
The Paleobiology Database records 15 sites for Didymograptus protobalticus, 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
6 references- The Hunneberg Stage (Ordovician) in the area east of St. Petersburg, north-western Russia7
- La fauna de graptolitos de la Formación Acoite, en el borde occidental de la Cordillera Oriental Argentina. Análisis bioestratigráfico3
- The Lower Ordovician graptolites Didymograptus balticus Tullberg and D. protobalticus Monsen2
- Early-Middle Ordovician graptolites from the Argentine Puna: quantitative paleobiogeographic analysis based on a systematic revision1
- Reevaluación de las Biozonas de Tetragraptus phyllograptoides y T. akzharensis (Ordovícico Inferior, Floiano) de la Cordillera Oriental Argentina1
- Uppermost Cambrian and Lower Ordovician in northwestern Russia: sequence stratigraphy, sea level changes and bio-events1
Each of the 15 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 Didymograptus protobalticus 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 Didymograptus protobalticus, or no answer at all. This entry cannot say which.
No 3D scan of Didymograptus protobalticus 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDidymograptus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Monsen 1937)