| Basic info | Taxonomic history | Classification | Included Taxa | 
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections | 
Protypus
Taxonomy
Protypus was named by Walcott (1986) [Sepkoski's age data: Cm Tojo  Sepkoski's reference number: 469]. It is not extant. 
It was assigned to Dorypygidae by Jell and Adrain (2002); and to Corynexochida by Sepkoski (2002).
It was assigned to Dorypygidae by Jell and Adrain (2002); and to Corynexochida by Sepkoski (2002).
  Species
  
  Species lacking formal opinion data
  
Synonyms
| 
 | 
Synonymy list
| Year | Name and author | 
|---|---|
| 1938 | Bicaspis Resser | 
| 1986 | Protypus Walcott | 
| 2002 | Protypus Jell and Adrain p. 432 | 
| 2002 | Protypus Sepkoski | 
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.
G. †Protypus Walcott 1986
    show all | hide all
   †Protypus hitchcocki Whitfield 1884
  Invalid names: Bicaspis Resser 1938 [synonym]
  
Diagnosis
No diagnoses are available
Measurements
No measurements are available
| 
 | 
 | ||||
| 
 | 
 | ||||
| 
 | 
 | ||||
| 
 | 
 | ||||
| 
 | 
 | ||||
| Source: f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: base of the Atdabanian to the top of the Delamaran or 521.00000 to 505.30000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number | 
|---|---|---|---|
| Atdabanian | Russian Federation (Khakasiya) | P. carus (81329) P. carus, P. rotundus (81328) P. sp. (81314) | |
| Botomian | Russian Federation (Tuva) | P. sp. (81481) | |
| Dyeran | USA (New York) | P. sp. (182) | |
| Dyeran | USA (Vermont) | P. hitchcocki (121235) P. sp. (191) | |
| Delamaran | USA (Virginia) | Bicaspis austinvillensis (219911) |