| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Richardsonella cristata
Taxonomy
Dikelocephalus cristatus was named by Billings (1860). Its type specimen is Nat. Mus. Canada 870a, a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Conokephalina cristata by Walcott (1914); it was recombined as Richardsonella cristata by Raymond (1924) and Rasetti (1944).
It was recombined as Conokephalina cristata by Walcott (1914); it was recombined as Richardsonella cristata by Raymond (1924) and Rasetti (1944).
Synonymy list
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Richardsonella cristata Billings 1860
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: Trempealeauan or 492.50000 to 485.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Trempealeauan | Canada (Quebec) | Richardsonella cristata (224138) |