Nanno
Nanno is an extinct genus of endocerid, named by Clarke in 1894 for the apical end of an endocerid from the Trenton Limestone of New York state that has the basic description of the nanno type. It is possibly a senior synonym for Proterovaginoceras. As a valid genus, Nanno is included in the Endoceratidae, but the nanno type apex may be found in other families.

Apokryltaros · 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
- EndoceratidaePBDB
- Diet
- carnivorePBDB, for Endocerida
- Life habit
- nektobenthicPBDB, for Endocerida
- Motility
- actively mobilePBDB, for Endocerida
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At least 2.4 million years on record.
The record covers at least 459.7 Mya to 457.3 Mya. No occurrence read is dated outside 471.3 Mya to 449.6 Mya.
9 occurrences of Nanno on record, most of them in the Ordovician. 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
9 occurrences- Ordovician100%
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
6 formations
- Segerstad Limestone Formation2
- Folkeslunda Formation2
- Decorah Shale Formation1
- Guttenberg Formation · Galena Group1
- Ion Formation · Galena Group1
- Day Point Formation · Chazy Group1
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The named rock units Nanno has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Nanno and its relatives
OrdovicianWhere Nanno and its relatives were recorded in the Ordovician.
Found in the same rock
79 taxa- Endoceras5 sites
- Euprimites4 sites
- Orthoceras4 sites
- Anaspyroceras3 sites
- Asaphus3 sites
- Geisonoceras3 sites
- Gonioceras3 sites
- Hyolithes3 sites
- Illaenus3 sites
- Isorthoceras junceum3 sites
- Manitoulinoceras3 sites
- Metaspyroceras3 sites
- Michelinoceras3 sites
- Paraceraurus3 sites
- Pseudoasaphus3 sites
- Remopleurides3 sites
- Scofieldoceras3 sites
- Trinodus3 sites
- Ancistroceras2 sites
- Angelinoceras2 sites
- Baltonotella2 sites
- Cochlioceras2 sites
- Conchoprimitia2 sites
- Endoceras proteiforme2 sites
The Paleobiology Database records 9 sites for Nanno, 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
5 references- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area3
- Lower and Middle Viruan (Middle Ordovician) of the Siljan district2
- The Viruan (Middle Ordovician) of Oland2
- New Chazyan orthocones1
- Cephalopoda of the Beekmantown and Chazy formations of the Champlain Basin1
Each of the 9 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 Nanno
- Source
- Wikipedia/Commons
- Credit
- Apokryltaros
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Nanno 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
- 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 itEndoceratidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Clarke 1894