Journal article
The Cretaceous ammonite Eopachydiscus and the origin of the Pachydiscidae.
- Abstract:
-
Eopachydiscus Wright, 1955 is confirmed as the earliest, Upper Albian representative of the Pachydiscidae, derived in all probability from a bullate member of the Beaudanticeratinae and giving rise to the Cenomanian-Coniacian Lewesiceras Spath, 1939. Nuclei of Eopachydiscus are ribbed, tuberculate, and constricted, showing even at this stage and date typical pachydiscid ornament; the evolution of Lewesiceras simply involved retention of these features into middle growth. The suggestion that t...
Expand abstract
Actions
Authors
Bibliographic Details
- Journal:
- Palaeontology
- Volume:
- 26
- Issue:
- 3
- Pages:
- 655-662
- Publication date:
- 1983-01-01
- ISSN:
-
0031-0239
- Source identifiers:
-
81923
Item Description
- Language:
- English
- Pubs id:
-
pubs:81923
- UUID:
-
uuid:eacc1de3-4175-4cb4-98d6-a070a693b4ff
- Local pid:
- pubs:81923
- Deposit date:
- 2012-12-19
Terms of use
- Copyright date:
- 1983
If you are the owner of this record, you can report an update to it here: Report update to this record