Siphonia
Siphonia is a genus of extinct hallirhoid demosponges of the Lower and Upper Cretaceous, from about 125 to 66 million years ago. They lived in the Western Tethys Ocean, in what is now Europe.

Apokryltaros · CC BY 2.5 · via Wikipedia/Commons. 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
- SiphoniinaePBDB
- Diet
- suspension feederPBDB, for Lithistida
- Life habit
- epifaunalPBDB, for Lithistida
- Motility
- stationary, attachedPBDB, for Lithistida
- Vision
- blindPBDB, for Porifera
- Environment
- marinePBDB, for Lithistida
Time the record covers
At least 65 million years on record.
The record covers at least 113.2 Mya to 48.07 Mya. No occurrence read is dated outside 143.1 Mya to 41.03 Mya.
45 occurrences of Siphonia on record, most of them in the Late 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
45 occurrencesThese 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
8 formations
- Bilá Formation3
- Craie Chloritée Formation3
- "Scaphiten-Pläner" Formation2
- Upper Greensand Formation2
- Regensburger Grünsandstein Formation1
- Melovatka Formation1
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The named rock units Siphonia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 31 occurrences have no formation on record, which is common for older literature.
Siphonia and its relatives
Late CretaceousWhere Siphonia and its relatives were recorded in the Late Cretaceous.
Found in the same rock
667 taxa- Pachycothon giganteum8 sites
- Heterostinia obliqua7 sites
- Scytalia terebrata7 sites
- Seliscothon7 sites
- Verruculina seriatopora7 sites
- Aulosoma radiciformis6 sites
- Doryderma (Brochodora) roemeri6 sites
- Eustrobilus callosus6 sites
- Pachinion scriptum6 sites
- Phymatella bulbosa6 sites
- Verruculina tenuis6 sites
- Coscinostoma fragilis5 sites
- Jereica polystoma5 sites
- Propachastrella primaeva5 sites
- Seliscothon mantelli5 sites
- Astrocladia subramosa4 sites
- Aulaxinia ventricosa4 sites
- Callicylix eocenicus4 sites
- Callopegma acaule4 sites
- Chonella tenuis4 sites
- Coeloptychium deciminum4 sites
- Craterella auricula4 sites
- Homalodoriana plana4 sites
- Homalodoriana tuberosa4 sites
The Paleobiology Database records 32 sites for Siphonia, 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
14 references- Catalogue of the fossil sponges in the Geological Department of the British Museum (Natural History)10
- Die Kieselspongien der oberen Kreide von Nordwestdeutschland, Teil 1 Tetraxonia, Monaxonia und Silicea incert. sedis [Upper Cretaceous sponges from north-western Germany, part 1 Tetraxonia, Monaxonia and Silicea incert. sedis]9
- Siliceous sponges from the Upper Cretaceous of Poland, part 1: Tetraxonia6
- Porifera (revised) (Demospongea, Hexactinellida, Heteractinida, Calcarea)4
- Contribution a l'etude des spongiaires siliceux du Cretace inferieur4
- Late Cretaceous environments and communities as recorded at Chrtníky (Bohemian Cretaceous Basin, Czech Republic)3
- O średnich warstwach krédowych w krakowskim okręgu2
- A highly diverse siliceous sponge fauna (Porifera: Hexactinellida, Demospongiae) from the Eocene of north-eastern Italy: systematics and palaeoecology1
- On the brain of a primitive bird from the Upper Cretaceous of European Russia1
- La faune à rudistes, porifères et scléractiniaires du Crétacé superieur du mont Ptoon (Béotie septentrionale, Grèce continentale) [The fauna with rudists, porifers and corals of upper Cretaceous of mount Ptoon (Northern Beotia, central Greece)]1
- The ecology of Cenomanian lithistid sponge frameworks, Regensburg area, Germany1
- Les spongiaires Turoniens du synclinal d'Eygaliers (Baronnies, Drome) [Turonian sponges from the Eygaliers syncline (Baronnies, Drome)]1
Each of the 45 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. 2 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 content2
Picture of Siphonia
- Source
- Wikipedia/Commons
- Credit
- Apokryltaros
- Licence
- CC BY 2.5
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Chapel_Prints_CO
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access and MorphoSource were 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, “Siphonia”
- 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 itSiphoniinae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Goldfuss 1826