PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Ophiceras medium

Cephalopoda - Ceratitida - Ophiceratidae

Taxonomy

Ophiceras medium was named by Griesbach (1880). It is a 3D body fossil. Its type locality is Shalshal Cliff, Bed 2, Rimkin Paiar, which is in a Griesbachian offshore limestone in India.

Subspecies

Lytophiceras chamunda evoluta

Sister species lacking formal opinion data

O. greenlandicum, O. involutum, O. sinense, O. spathi, O. transitorium, O. compressum, O. kochi, O. commune, O. subkyticum, O. ultimum

Synonyms

Ophiceras platyspira was named by Diener (1897).

It was synonymized subjectively with Ophiceras medium by Dai et al. (2019).
Ophiceras sakuntala was named by Diener (1897).

It was recombined as Lytophiceras sakuntala by Spath (1934); it was synonymized subjectively with Ophiceras medium by Dai et al. (2019).
Ophiceras ptychodes was named by Diener (1897).

It was recombined as Lytophiceras ptychodes by Spath (1934); it was recombined as Ophiceras (Lytophiceras) ptychodes by Kapoor and Bando (1974); it was synonymized subjectively with Ophiceras medium by Dai et al. (2019).
Ophiceras chamunda was named by Diener (1897). It is the type species of Ophiceras (Lytophiceras).

It was recombined as Lytophiceras chamunda by Spath (1934); it was synonymized subjectively with Ophiceras medium by Dai et al. (2019).
Ophiceras tingi was named by Tien (1933).

It was synonymized subjectively with Ophiceras medium by Dai et al. (2019).

Synonymy list

Year	Name and author
1880	Ophiceras medium Griesbach p. 111 figs. Pl 3, fig 9
1897	Ophiceras chamunda Diener
1897	Ophiceras medium Diener
1897	Ophiceras platyspira Diener
1897	Ophiceras ptychodes Diener
1897	Ophiceras sakuntala Diener
1933	Ophiceras tingi Tien
1934	Lytophiceras chamunda Spath
1934	Lytophiceras ptychodes Spath
1934	Lytophiceras sakuntala Spath
1934	Ophiceras platyspira Spath
1974	Ophiceras (Lytophiceras) ptychodes Kapoor and Bando
2018	Ophiceras sakuntala Ware and Bucher
2019	Ophiceras medium Dai et al. p. 51 figs. 4.1-4.11
2023	Ophiceras medium Dai et al. fig. 12A

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca

Rank	Name	Author
class	Cephalopoda	Cuvier 1797
subclass	Ammonoidea	()
order	Ceratitida	Hyatt 1884
superfamily	Meekocerataceae	Waagen 1895
family	Ophiceratidae	Arthaber 1911
genus	Ophiceras
species	medium

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.

†Ophiceras medium Griesbach 1880

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†Lytophiceras chamunda evoluta Frech 1902

Invalid names: Ophiceras chamunda Diener 1897 [synonym], Ophiceras platyspira Diener 1897 [synonym], Ophiceras ptychodes Diener 1897 [synonym], Ophiceras sakuntala Diener 1897 [synonym], Ophiceras tingi Tien 1933 [synonym]

Diagnosis

No diagnoses are available