Kayserops
Kayserops is a trilobite in the order Phacopida, that existed during the lower Devonian in what is now Germany. It was described by Delo in 1935, and the type species is Kayserops kochi, which was originally described under the genus Cryphaeus by Kayser in 1883. The generic name is derived from the name of the species' author. The type locality was the Rhenish Massif.

Jonathan Chen · 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
- AcastidaePBDB
- Diet
- carnivorePBDB, for Phacopina
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Acastidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 23 million years on record.
Every occurrence read is dated to somewhere between 410.62 Mya and 387.95 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
12 occurrences of Kayserops on record, most of them in the Devonian. 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
12 occurrences- Devonian100%
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
10 formations
- Le Fret Formation2
- Mariposas Formation2
- Kozyatagi Formation · Pendik Group1
- Bi'r al Qasr Formation1
- Pen An Ero Formation1
- Verveur Formation1
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The named rock units Kayserops has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Kayserops and its relatives
DevonianWhere Kayserops and its relatives were recorded in the Devonian.
Found in the same rock
69 taxa- Asteropyge (Comura)3 sites
- Phacops3 sites
- Acastoides2 sites
- Arduspirifer2 sites
- Belenopyge2 sites
- Breizhops2 sites
- Chlupacina2 sites
- Coltraneia celtica2 sites
- Greenops2 sites
- Iridistrophia2 sites
- Leonaspis2 sites
- Paraspirifer2 sites
- Subcuspidella2 sites
- Acastava1 site
- Ananaspis fecunda1 site
- Arduennops michelsi1 site
- Barrandeophyllum1 site
- Beyrichiidae1 site
- Bivalvia1 site
- Bohemiproetus bohemicus1 site
- Buchiola1 site
- Cladochonus1 site
- Cupularostrum1 site
- Dacryoconarida1 site
The Paleobiology Database records 11 sites for Kayserops, 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
6 references- The Devonian of Celtiberia (Spain) and Devonian paleogeography of SW Europe4
- Trilobites du Devonien (Emsien-Famennien) de la Rade de Brest (Massif Armoricain)4
- Trilobiten aus dem Grenzbereich Emsium/Eifelium (Devon) im Raum Winterberg/Züschen (österliches Sauerland)1
- Eifel-Trilobiten III. Corynexochida, Proetida (2), Harpetida, Phacopida (2), Lichida1
- Devonian and Carboniferous brachiopods from the northern flank of the Murzug Basin (Libya)1
- Trilobites from the Devonian of Istanbul1
Each of the 12 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1
Picture of Kayserops
- Source
- Wikipedia/Commons
- Credit
- Jonathan Chen
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
The description on this site
- Source
- Wikipedia, “Kayserops”
- 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 itAcastidae through timeFormations of the DevonianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Delo 1935