Tritrabidae
Tritrabidae is a family of radiolarians in the order Spumellaria. They range in age from 235 to 125 million years.
No picture of Tritrabidae 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 Tritrabidae, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SpumellariaPBDB
Time the record covers
At least 79 million years on record.
The record covers at least 205.7 Mya to 125.77 Mya. No occurrence read is dated outside 237 Mya to 119.57 Mya.
623 occurrences of Tritrabidae on record, most of them in the Late Jurassic. 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
623 occurrences- Late Triassicunder 1%
- Early Jurassicunder 1%
- Middle Jurassic14%
- Late Jurassic46%
- Early Cretaceous39%
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
39 formations
- Maiolica Formation187
- Oberalmer Schichten Formation62
- Taman Formation37
- Rosso Ammonitico Medio Formation29
- Fonzaso Formation25
- Wahrah Formation21
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The named rock units Tritrabidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 further formations hold fewer occurrences each and are not listed. 94 occurrences have no formation on record, which is common for older literature.
Tritrabidae and its relatives
Late JurassicWhere Tritrabidae and its relatives were recorded in the Late Jurassic.
Found in the same rock
728 taxa- Tritrabs ewingi118 sites
- Acastea diaphorogona115 sites
- Tethysetta boesii108 sites
- Sethocapsa leiostraca99 sites
- Acaeniotyle umbilicata95 sites
- Angulobracchia portmanni94 sites
- Acanthocircus trizonalis92 sites
- Syringocapsa92 sites
- Archaeodictyomitra apiarium90 sites
- Alievium helenae87 sites
- Emiluvia chica84 sites
- Suna echiodes82 sites
- Deviatus diamphidius81 sites
- Emiluvia pessagnoi79 sites
- Pseudodictyomitra carpatica78 sites
- Pantanellium squinaboli77 sites
- Sethocapsa trachyostraca75 sites
- Paronaella tubulata74 sites
- Paronaella73 sites
- Archaeodictyomitra excellens72 sites
- Triactoma72 sites
- Homoeoparonaella69 sites
- Ditrabs68 sites
- Sethocapsa dorysphaeroides65 sites
The Paleobiology Database records 274 sites for Tritrabidae, and this reads 240 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
43 references- Early Cretaceous Radiolarian Biostratigraphy of Umbria-Marche Apennines (Italy), Southern Alps (Italy and Switzerland) and Hawasina Nappes (Oman)187
- Systematik, Stratigraphie und Palökologie der Radiolarien des Oberjura-Unterkreide-Grenzbereiches im Osterhorn-Tirolikum (Nördliche Kalkalpen, Salzburg und Bayern)85
- Stratigraphic architecture of the northern Oman continental margin - Mesozoic Hamrat Duru Group Hawasina complex, Oman44
- Palökologische Verwertbarkeit oberjurassisch-unterkretazischer Radiolarienfaunen mit Beispielen aus Antarktis, Oman und Südalpen40
- Taxonomic studies of Upper Jurassic (Tithonian) Radiolaria from the Taman Formation, east-central Mexico34
- Radiolarian Biostratigraphy of Middle-Upper Jurassic pelagic siliceous successions of Western Sicily and the Southern Alps (Italy)29
- Radiolarian biostratigraphy of the Fonzaso Formation, Middle- Upper Jurassic, Southern Alps, Italy22
- Upper Jurassic Tethyan and Southern Boreal radiolarians from western North America20
- Late Jurassic radiolarians from the Antarctic Peninsula18
- Upper Jurassic radiolarites of the Czertezic succession and comparison with the Kysuca succession in the east-slovak part of the Pieniny Klippen belt (Western Carpathians, Slovakia)14
- Jurassic radiolaria from the Josephine ophiolite and overlying strata, Smith River subterrane (Klamath Mountains), northwestern California and southwestern Oreg14
- Oxfordian and Callovian radiolarians from the Bucegi Massif and Piatra Craiului Mountains (Southern Carpathians, Romania)13
Each of the 623 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. 31 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 Tritrabidae 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 Tritrabidae, or no answer at all. This entry cannot say which.
No 3D scan of Tritrabidae 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
- Source
- Wikipedia, “Tritrabidae”
- 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 itSpumellaria through timeFormations of the Late JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Baumgartner 1980