Horaclupea
genus of fossil fishes
Horaclupea is an extinct genus of freshwater and estuarine ray-finned fish that inhabited the Indian subcontinent during the early Eocene. It was a clupeoid, making it related to modern herrings and anchovies. It was named after Indian ichthyologist Sunder Lal Hora, who described the first species of the genus.
It contains two species:
†H. geei (Hora, 1937) - early Eocene of the Salt Range in Kohat District, Pakistan (syn: Clupea geei Hora, 1937)
†H. intertrappea Borkar, 1973 - early Eocene of the Intertrappean Beds near Bamanbore, India
H. geei was initially described as Clupea geei from multiple specimens, one relatively complete, in an Eocene estuarine fossil fish assemblage discovered near Malgin in Kohat District, Pakistan. H. intertrappea was described in the new genus Horaclupea from several articulated specimens from freshwater sediments in the Intertrappean Beds of India. These formations were initially dated to the Late Paleocene or early Eocene, and were later re-dated as Cretaceous or earliest Paleocene. However, more recent studies using palynostratigrapy have confirmed that the Bamanbore deposits are Early Eocene in age.
The abundance of H. geei in estuarine sediments, in addition to the occurrence of H. intertrappea in freshwater sediments, suggests that Horaclupea may have been an anadromous taxon that migrated up rivers to breed and schooled in large shoals. It was initially suggested that H. geei may represent the young stage of a hilsa-like clupeid, but the lack of any adult specimens in the Kohat assemblage, as well as the presence of similar individuals in the Intertrappean Beds, indicates that it may just represent a small-sized clupeid species.
It was described as being potentially related to Diplomystus, but that taxon has since been classified into a different order (Ellimmichthyiformes).
Begin with the source’s own compact description: “Horaclupea” is genus of fossil fishes. The dossier treats that line as a proposition to test through Horaclupea, genus and fossil, not as a finished interpretation.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jun 23, 2026. The linked authority identifier is Q125447173. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1937 and 1973.
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This entry incorporates text from “Horaclupea” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.