Loganelliidae
Loganelliidae is an extinct family of thelodonts in the order Thelodontiformes. They are distinguished by the star or cross shaped ridges located on their head scales.

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
- LoganelliiformesPBDB
- Motility
- actively mobilePBDB, for Chordata
Time the record covers
At least 20 million years on record.
The record covers at least 440.5 Mya to 419.62 Mya. No occurrence read is dated outside 443.1 Mya to 410.62 Mya.
180 occurrences of Loganelliidae 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
180 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
62 formations
- Downton Castle Sandstone Formation · Whitcliffe Group22
- Upper Whitcliffe Formation14
- Ludlow Bone Bed Formation11
- Golomyannyj Formation6
- Krasnaya Bukhta Formation6
- Chester Bjerg Formation6
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The named rock units Loganelliidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 38 further formations hold fewer occurrences each and are not listed. 20 occurrences have no formation on record, which is common for older literature.
Loganelliidae and its relatives
SilurianWhere Loganelliidae and its relatives were recorded in the Silurian.
Found in the same rock
367 taxa- Thelodus parvidens33 sites
- Paralogania ludlowiensis26 sites
- Loganellia22 sites
- Thelodus18 sites
- Acanthodii17 sites
- Thelodus trilobatus17 sites
- Paralogania martinssoni13 sites
- Ozarkodina confluens12 sites
- Thelodus laevis11 sites
- Thelodus pugniformis10 sites
- Wurmiella excavata9 sites
- Loganellia sibirica8 sites
- Loganellia einari6 sites
- Nostolepis striata6 sites
- Oulodus excavatus6 sites
- Phlebolepis elegans6 sites
- Talimaalepis rimae6 sites
- Tremataspis milleri6 sites
- Tremataspis schmidti6 sites
- Coryssognathus dubius5 sites
- Ctenognathodus5 sites
- Ctenognathodus murchisoni5 sites
- Gomphodus5 sites
- Hughmilleria5 sites
The Paleobiology Database records 106 sites for Loganelliidae, 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
33 references- Thelodonts and distribution of associated conodonts from the Llandovery-lowermost Lochkovian of the Welsh Borderland48
- Ordovician and Lower Silurian thelodonts from Severnaya Zemlya Archipelago (Russia)22
- Siluro-Devonian thelodonts from the Welsh Borderland15
- Distribution of vertebrates in the Silurian of Estonia15
- Taxonomy of loganiid thelodonts12
- Distribution of vertebrates in Upper Ordovician – Lower Devonian of Tuva (Russia)8
- Habitat of Llandoverian-Lochkovian eurypterids8
- Vertebrate remains from Upper Silurian – Lower Devonian beds of Hall Land, North Greenland6
- Loganellia (Thelodonti, Agnatha) from the Jaagarahu stage, Wenlock, Estonia6
- End-Wenlock terminal Mulde carbon isotope excursion in Gotland, Sweden: Integration of stratigraphy and taphonomy for correlations across restricted facies and specialized faunas5
- Hirnantian (Ordovician) through Wenlock (Silurian) conodont biostratigraphy, bioevents, and integration with graptolite biozones, Cape Phillips Formation slope facies, Cornwallis Island, Canadian Arctic Islands3
- New and biostratigraphically useful thelodonts from the Silurian of the Mackenzie Mountains, Northwest Territories, Canada3
Each of the 180 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. 21 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 content1
Picture of Loganelliidae
- Source
- Wikipedia/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Loganelliidae 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
- 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 itLoganelliiformes through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Karatajute-Talimaa 1997