Loganellia
Searched as Loganellia kummerowi. The Paleobiology Database treats Loganellia as the accepted name.
Loganellia is a genus of jawless fish which lived between 430 and 370 million years ago, during the Silurian and Devonian periods of the Paleozoic. Loganellia belonged to the Thelodonti class and like other thelodonts possessed scales instead of plate armor.

Ghedoghedo · CC BY-SA 4.0 · 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
- LoganelliidaePBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At most 3.1 million years on record.
The one occurrence read is dated to somewhere between 422.7 Mya and 419.62 Mya, which is a dating window rather than a span.
1 occurrence of Loganellia 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
1 occurrences- Silurian100%
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
1 formation
Loading coastlines…
The named rock units Loganellia has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Loganellia and its relatives
SilurianWhere Loganellia and its relatives were recorded in the Silurian.
Found in the same rock
290 taxa- Thelodus12 sites
- Thelodus parvidens7 sites
- Nostolepis striata6 sites
- Gomphodus5 sites
- Hughmilleria5 sites
- Phyllocarida5 sites
- Birkenia elegans4 sites
- Katoporus4 sites
- Loganelliidae4 sites
- Logania scotica4 sites
- Nanahughmilleria4 sites
- Paralogania martinssoni4 sites
- Plantae4 sites
- Strosipherus4 sites
- Talimaalepis rimae4 sites
- Thelodus laevis4 sites
- Thelodus trilobatus4 sites
- Tolypelepis undulata4 sites
- Xiphosurida4 sites
- Angaralepis moskalenkoae3 sites
- Erettopterus3 sites
- Gomphonchus sandelensis3 sites
- Goniporus alatus3 sites
- Heterostraci3 sites
The Paleobiology Database records 60 sites for Loganellia, 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
1 referenceEach of the 1 occurrence 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Loganellia
- Source
- Wikipedia/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Loganellia 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.
The description on this site
- Source
- Wikipedia, “Loganellia”
- 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 itLoganelliidae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Fredholm 1990