| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Protolloydolithus
Taxonomy
Protolloydolithus was named by Williams (1948) [Sepkoski's age data: O Llvi-l O Llde-l Sepkoski's reference number: 378]. It is not extant.
It was assigned to Asaphida by Sepkoski (2002); and to Trinucleidae by Jell and Adrain (2002).
It was assigned to Asaphida by Sepkoski (2002); and to Trinucleidae by Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1948 | Protolloydolithus Williams |
| 2002 | Protolloydolithus Jell and Adrain p. 432 |
| 2002 | Protolloydolithus Sepkoski |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Llanvirn to the top of the Llandeilo or 468.00000 to 458.20000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Llanvirn | United Kingdom | P. ramsayi (69814 69853) | |
| Late/Upper Llanvirn | United Kingdom | P. sp. (69866) | |
| Llandeilo | United Kingdom (Wales) | P. reticulatus (216511) | |
| Dobrotivian | Portugal | P. sp. (20958) | |
| Berounian | France (Mayenne) | P. sp. (20922) |