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Harpoceras nagatoensis

Cephalopoda - Ammonitida - Hildoceratidae

Taxonomy

No taxonomic data are available

Sister species
H. (Harpoceratoides) connectens, H. crassefalcatum, H. dynastes, H. eseri, H. falciferum (syn. Phaularpites exiguus, H. fellenbergi, Ammonites mulgravius, Tardarpoceras tardum, H. falcula, H. falciferoides, H. concinnum), 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. chrysanthemum, H. chrysanthemum, H. crassum, H. falcifer, H. inouyei, H. lympharum, H. maghrebensis, H. mulgravium, H. okadai, H. propinquum, H. pseudoserpentinus, H. renevieri, H. serotinum, H. subplanulatum

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
speciesnagatoensis

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 (4 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Pliensbachian - Early/Lower Toarcian192.9 - 182.9Japan (Yamaguchi) Harpoceras nagatoensis (38184)
Early/Lower Toarcian184.2 - 182.9Japan (Yamaguchi) Harpoceras nagatoensis (38206 38218 38223)