Bistarkum
No picture of Bistarkum was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Bistarkum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- AngulobracchiidaePBDB
Time the record covers
At least 128 million years on record.
The record covers at least 254.14 Mya to 125.77 Mya. No occurrence read is dated outside 259.857 Mya to 119.57 Mya.
191 occurrences of Bistarkum on record, most of them in the Early Cretaceous. 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
191 occurrences- Permian6%
- Early Triassicunder 1%
- Late Triassic15%
- Early Jurassic20%
- Middle Jurassic14%
- Late Jurassic7%
- Early Cretaceous36%
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
20 formations
- Maiolica Formation70
- Sandilands Formation · Kunga Group19
- Phantom Creek Formation · Maude Group10
- Dalong Formation8
- Buya Formation5
- Hocakoey Formation4
Loading coastlines…
The named rock units Bistarkum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 46 occurrences have no formation on record, which is common for older literature.
Bistarkum and its relatives
Early CretaceousWhere Bistarkum and its relatives were recorded in the Early Cretaceous.
Found in the same rock
401 taxa- Triactoma57 sites
- Acaeniotyle umbilicata54 sites
- Acastea diaphorogona54 sites
- Archaeodictyomitra excellens54 sites
- Acanthocircus trizonalis53 sites
- Alievium helenae53 sites
- Angulobracchia portmanni53 sites
- Pantanellium squinaboli53 sites
- Paronaella tubulata53 sites
- Tethysetta boesii53 sites
- Tritrabs ewingi53 sites
- Archaeospongoprunum patricki52 sites
- Pseudocrucella52 sites
- Sethocapsa dorysphaeroides52 sites
- Suna echiodes52 sites
- Mirifusus chenodes50 sites
- Ditrabs49 sites
- Deviatus diamphidius48 sites
- Sethocapsa kaminogoensis48 sites
- Mirifusus45 sites
- Syringocapsa agolarium45 sites
- Archaeodictyomitra apiarium44 sites
- Sethocapsa leiostraca44 sites
- Bernoullius43 sites
The Paleobiology Database records 117 sites for Bistarkum, and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
28 references- Early Cretaceous Radiolarian Biostratigraphy of Umbria-Marche Apennines (Italy), Southern Alps (Italy and Switzerland) and Hawasina Nappes (Oman)70
- Biochronology and paleontology of uppermost Triassic (Rhaetian) radiolarians, Queen Charlotte Islands, British Columbia, Canada19
- Gorican et al., 200610
- Stratigraphic architecture of the northern Oman continental margin - Mesozoic Hamrat Duru Group Hawasina complex, Oman10
- Faunal change of Early - Middle Jurassic radiolarians9
- Radiolarian evolution during the latest Permian in south China8
- Global radiolarian zonation for the Pliensbachian, Toarcian and Aalenian7
- Toarcian Radiolaria from Mt. Mangart (Slovenian^Italian border) and their paleoecological implications7
- Taxonomic Studies of Lower Jurassic Radiolaria from East-Central Oregon7
- Lower and Middle Jurassic radiolarian biostratigraphy and systematic paleontology, Queen Charlotte Islands, British Columbia6
- Upper Jurassic (Oxfordian) Radiolaria from the Sula Islands (East Indies): Thier taxonomic, biostratigraphic, chronostratigraphic, and paleobiogeographic significance5
- Permian radiolarians from the so-called Gufeng Formation of the Laibin-Liuzhou area, Guangxi, China4
Each of the 191 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. 16 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 content0
No picture of Bistarkum was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 Bistarkum, or no answer at all. This entry cannot say which.
No 3D scan of Bistarkum 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 itAngulobracchiidae through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Yeh 1987