Biology:Adkinsia

From HandWiki

Revision as of 21:56, 15 February 2024 by WikiEd2 (talk | contribs) (fixing)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Short description: Genus of molluscs (fossil)

{{Automatic taxobox | fossil_range = {{fossil range|Cenomanian|ref=<ref name="Sepkoski Ceph">"Error: no |title= specified when using {{Cite web}}".

Adkinsia is an extinct genus of cephalopod belonging to the Ammonite subclass.

References

Notable fossil cephalopods (listed by first occurrence)

The belemnite-cuttlefish-like Belosaepia

Marcellus Cephalopod 1896-Dana-ManGeol-Fig917.png

Evolution of
cephalopods

Advanced nautiloids Nautilaceae True ammonites
Early coleoids Proteroctopus Styletoctopus Keuppia Palaeoctopus Paleocirroteuthis
Ceratitid ammonoids late Nautilida
Advanced belemnoids Diplobelids: Diplobelus Belemnites: Belemnites Belemnopsis Belemnotheutis

First appearance of long-lasting lineages Goniatite and ceratite ammonoids Probable coleoid ancestor Bactritida Earliest belemnoids: Aulacocerids: Aulacoceras Phragmoteuthids: Phragmoteuthis
Early forms the earliest cephalopod group Ellesmerocerida Orthocones: Endocerida, Orthocerida, Actinocerida Brevicones: Ascocerida, Oncocerida Earliest coiled cephalopods: Tarphycerida Spirulid?: Shimanskya
Octopus Pohlsepia

Earliest unambiguous cephalopods: Plectronocerida
- Plectronoceras
Monoplacophoran-like ancestral forms: Knightoconus
Possible, nude, "stem-group cephalopods": Nectocarididae

Wikidata ☰ Q4683243 entry

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Adkinsia. Read more

Retrieved from "https://handwiki.org/wiki/index.php?title=Biology:Adkinsia&oldid=3686484"