Ammonoid
Hoploscaphites
Scaphite ammonite
Hoploscaphites is a hook-shaped scaphitid ammonite of the upper Pierre Shale and Fox Hills Formation, often found with iridescent shell and preserved in pairs of male and female (microconch and macroconch) forms. Nacreous Hoploscaphites from South Dakota are small jewels of the ammonite trade. The uncoiled body chamber is fragile and often restored.
| Phylum | Mollusca |
|---|---|
| Class | Cephalopoda |
| Order | Ammonitida |
| Family | Scaphitidae |
| Group | Ammonoid |
| Rank (PBDB) | genus· Paleobiology Database |
| Author | (Nowak 1911)· Paleobiology Database |
| Classification (PBDB) | Mollusca › Cephalopoda › Ammonitida › Scaphitidae· Paleobiology Database |
| Range (PBDB) | 85.7–66 Ma· Paleobiology Database |
| PBDB occurrences | 319· Paleobiology Database |
Photographs
Elsewhere
- GBIF: 4625943
- PBDB: 15015
- Wikidata: Q5901121
- PBDB taxon page
- Wikipedia: Hoploscaphites
- PBDB search: Hoploscaphites
Cite this article
Stratum Strata. "Hoploscaphites" (Taxon). Stratum Strata pack 2026.09, as of 2026-09-21. https://stratum.black/strata/taxa/hoploscaphites. Accessed 2026-09-21.
@misc{stratum-hoploscaphites,
title = {Hoploscaphites},
author = {{Stratum Strata}},
howpublished = {\url{https://stratum.black/strata/taxa/hoploscaphites}},
year = {2026},
note = {Taxon article, Stratum Strata pack 2026.09, as of 2026-09-21; sources: stratum, pbdb, wikidata, commons, nhm. Accessed 2026-09-21.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.