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Homoctenus crassus

Tentaculita - Homoctenida - Homoctenidae

Taxonomy
Homoctenus crassus was named by Li (1995). Its type specimen is M-9-1, a shell, and it is a 3D body fossil.

Sister species lacking formal opinion data
H. acutatus, H. caldwelli, H. hanusi, H. kikiensis, H. pseudogeinitziana

Synonymy list
YearName and author
1995Homoctenus crassus Li
2000Homoctenus crassus Li p. 969

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
classTentaculitaBoucek 1964
RankNameAuthor
subclassChonioconarida
superorderLirioconarida
orderHomoctenidaBoucek 1964
familyHomoctenidaeLjaschenko 1955
genusHomoctenusLjaschenko 1955
speciescrassusLi 1995

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.

†Homoctenus crassus Li 1995
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Diagnosis
ReferenceDiagnosis
Y. X. Li 2000ell conical, 1.6-2.7 mm long, 0.3-0.4 mm wide, apical angle 7-12 degrees. Rings rounded; 23-30 rings/mm in proximalpart;14-26 rings/mmindistalpart.Interspacesnarrow- ly grooved. Narrowly conical initial chamber. Shape of the inner surface of the wall parallels that of the outer surface. Thick shell with longitudinal ribs well developed.