Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Protohertzina

Protoconodonta -

Synonyms
Synonymy list
YearName and author
1973Protohertzina Missarzhevsky p. 54
1982Emeidus Chen p. 258
1983Protohertzina Azmi and Pancholi p. 366
1984Hastina Yang and He p. 38
2002Protohertzina Sepkoski, Jr.
2010Protohertzina Parkhaev and Demidenko p. 925

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
RankNameAuthor
Scalidophora
phylumChaetognathaLeuckart 1854
classProtoconodontaLanding 1995
genusProtohertzina

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
ReferenceDiagnosis
P. Y. Parkhaev and Y. Demidenko 2010"Bilaterally symmetrical, conical strongly elongated claw-like elements, straight or gradually bent, with expanded basal part. Basal cavity deep, reaching apical part of element. Anterior side convex, rarely straight, circular in cross-section, with small depression (furrow) in basal part of element. Posterior side concave, rarely straight, with median carina. Median carina rarely present on anterior side. Anterior and posterior sides separated from each other by lateral ribs. Chemical composition of elements calcium phosphate."