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Harpoceras chrysanthemum

Cephalopoda - Ammonitida - Hildoceratidae

Taxonomy

No taxonomic data are available

Sister species
H. (Harpoceratoides) connectens, H. crassefalcatum, H. dynastes, H. eseri, H. falciferum (syn. H. falcula, H. concinnum, Tardarpoceras tardum, Ammonites mulgravius, H. fellenbergi, Phaularpites exiguus, H. falciferoides), H. ignobile, H. kobelli, H. lunula, H. nitescens, H. pseudoserpentinum, H. rauracum, H. serpentinum (syn. Ammonites alternatus), H. subplanatum (syn. Ammonites complanatus)
Sister species lacking formal opinion data
H. alternatum, H. crassum, H. falcifer, H. inouyei, H. lympharum, H. maghrebensis, H. mulgravium, H. nagatoensis, H. okadai, H. propinquum, H. pseudoserpentinus, H. renevieri, H. serotinum, H. subplanulatum, H. nagatoensis

Synonymy list
No taxonomic opinions are available

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitidaHaeckel 1866
suborderAmmonitinaHyatt 1889
superfamilyHildoceratoidea(Hyatt 1867)
familyHildoceratidaeHyatt 1867
subfamilyHarpoceratinaeNeumayr 1875
genusHarpoceras
specieschrysanthemum

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
No ecological data are available

Age range: Early/Lower Toarcian or 184.20000 to 182.90000 Ma

Collections (31 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Pliensbachian - Early/Lower Toarcian192.9 - 182.9Japan (Yamaguchi) Harpoceras chrysanthemum (38174 38175 38178 38183)
Early/Lower Toarcian184.2 - 182.9Japan (Yamaguchi) Harpoceras chrysanthemum (38194 38195 38198 38199 38200 38201 38202 38203 38204 38205 38206 38207 38208 38210 38211 38212 38213 38214 38215 38216 38217 38218 38220 38221 38222 38223)
Toarcian184.2 - 174.7Japan Harpoceras chrysanthemum (236219)