| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tricrepicephalidae
Taxonomy
Tricrepicephalidae was named by Palmer (1954). It is not extant. Its type is Tricrepicephalus.
It was assigned to Aulacopleurida by Adrain (2011); and to Ptychopariida by Jell and Adrain (2002), Bentley et al. (2006), Lamsdell and Selden (2015).
It was assigned to Aulacopleurida by Adrain (2011); and to Ptychopariida by Jell and Adrain (2002), Bentley et al. (2006), Lamsdell and Selden (2015).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Tricrepicephalidae Palmer p. 752 |
| 2002 | Tricrepicephalidae Jell and Adrain p. 480 |
| 2006 | Tricrepicephalidae Bentley et al. p. 180 |
| 2011 | Tricrepicephalidae Adrain p. 107 |
| 2015 | Tricrepicephalidae Lamsdell and Selden p. 377 |
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.
Fm. †Tricrepicephalidae Palmer 1954
show all | hide all
G. †Erediaspis Opik 1967
G. †Meteoraspis Resser 1935
hide
†Meteoraspis borealis Lochman 1938
†Meteoraspis metra Walcott 1890
†Meteoraspis mutica Rasetti 1961
†Meteoraspis orientalis Yuan and Yin 1998
Invalid names: Coleopachys Raymond 1937 [synonym]
G. †Tricrepicephalus Kobayashi 1935
hide
†Tricrepicephalus asiaticus Yuan and Yin 1998
†Tricrepicephalus comus Walcott 1916
†Tricrepicephalus coria Walcott 1916
†Tricrepicephalus magnispinus Walcott 1916
†Tricrepicephalus texanus Shumard 1861
+
Invalid names: Tricrepicephalus anarusconii Rusconi 1954 [synonym], Tricrepicephalus nahuelus Rusconi 1954 [synonym], Tricrepicephalus serranus Rusconi 1954 [synonym]
†Tricrepicephalus thoosa Walcott 1916
+
Invalid names: Paracrepicephalus walcotti Lochman 1936 [synonym]
†Tricrepicephalus tripunctatus Whitfield 1876
Invalid names: Paracrepicephalus Lochman 1936 [objective synonym]
Diagnosis
No diagnoses are available