Alsatites

Alsatites is an extinct genus of cephalopod belonging to the Ammonite subclass. They lived during the Hettangian and are generally extremely evolute, many whorled. Keel broad and blunt organisms, they also exhibit a primary ribbing which is close and persistent.

Alsatites

Neoammoniten · CC BY-SA 3.0 · 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
AlsatitinaePBDB
Diet
carnivorePBDB, for Ammonoidea
Life habit
nektonicPBDB, for Ammonoidea
Motility
fast-movingPBDB, for Ammonoidea
Vision
well-developedPBDB, for Cephalopoda
Environment
marinePBDB, for Cephalopoda

Time the record covers

At most 8.5 million years on record.

Every occurrence read is dated to somewhere between 201.4 Mya and 192.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Late Triassic — about 0 of 55 occurrencesEarly Jurassic — about 55 of 55 occurrencesEarly Jurassic202–201 Mya — about 4 occurrences201–201 Mya — about 9 occurrences201–201 Mya — about 9 occurrences201–200 Mya — about 9 occurrences200–200 Mya — about 9 occurrences200–200 Mya — about 9 occurrences200–199 Mya — about 5 occurrences199–199 Mya — about 0.1 occurrences199–199 Mya — about 0.1 occurrences199–198 Mya — about 0.1 occurrences198–198 Mya — about 0.1 occurrences198–198 Mya — about 0.1 occurrences198–197 Mya — about 0.1 occurrences197–197 Mya — about 0.1 occurrences197–197 Mya — about 0.1 occurrences197–197 Mya — about 0.1 occurrences197–196 Mya — about 0.1 occurrences196–196 Mya — about 0.1 occurrences196–196 Mya — about 0.1 occurrences196–195 Mya — about 0.1 occurrences195–195 Mya — about 0.1 occurrences195–195 Mya — about 0.1 occurrences195–194 Mya — about 0.1 occurrences194–194 Mya — about 0.1 occurrences194–194 Mya — about 0.1 occurrences194–193 Mya — about 0.1 occurrences193–193 Mya — about 0.1 occurrences193–193 Mya — about 0.0 occurrences201.9 Mya192.4 Mya

55 occurrences of Alsatites on record, most of them in the Early 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

55 occurrences

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

Sandilands — 53.91°N, 133.15°WSunrise — 38.47°N, 118.43°WSunrise — 38.49°N, 118.09°WLast Creek — 51.09°N, 122.96°WBlue Lias — 50.00°N, 2.00°WBlue Lias — 51.00°N, 3.00°WSchnöll — 47.70°N, 13.17°EGermig — 28.70°N, 86.15°EFernie — 56.10°N, 123.04°WSchnoll — 47.00°N, 13.00°EKendlbach — 47.48°N, 11.53°EChilingote — 6.66°S, 77.80°W

Loading coastlines…

The named rock units Alsatites has been recovered from, largest first. Drawn where the rock is now, not where it formed. 17 occurrences have no formation on record, which is common for older literature.

Alsatites and its relatives

Early Jurassic

Where Alsatites and its relatives were recorded in the Early Jurassic.

Found in the same rock

115 taxa

The Paleobiology Database records 36 sites for Alsatites, 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

17 references

Each of the 55 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. 4 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 Alsatites

Credit
Neoammoniten
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Alsatites 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 itAlsatitinae through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Haug 1894