PBDB Taxon

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

Corongoceras alternans

Cephalopoda - Ammonitida - Himalayitidae

Taxonomy

Berriasella alternans was named by Gerth (1925).

It was recombined as Corongoceras alternans by Verma and Westermann (1973), Salazar and Stinnesbeck (2016).

Sister species lacking formal opinion data

C. aurouzei, C. huarpense, C. involutum, C. koellikeri, C. nodosum, C. paucicostatum, Micracanthoceras savornini

Synonyms

Berriasella pastorei was named by Leanza (1945).

It was synonymized subjectively with Corongoceras alternans by Salazar and Stinnesbeck (2016).
Corongoceras rigali was named by Leanza (1945).

It was synonymized subjectively with Corongoceras alternans by Salazar and Stinnesbeck (2016).

Synonymy list

Year	Name and author
1925	Berriasella alternans Gerth
1945	Berriasella pastorei Leanza
1945	Corongoceras rigali Leanza
1973	Corongoceras alternans Verma and Westermann p. 247
1973	Corongoceras rigali Verma and Westermann p. 247
2016	Corongoceras alternans Salazar and Stinnesbeck p. 172 figs. 19, 20

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Cephalopoda	Cuvier 1797

Rank	Name	Author
subclass	Ammonoidea	()
order	Ammonitida	Haeckel 1866
suborder	Ammonitina	Hyatt 1889
superfamily	Perisphinctoidea	(Steinman 1890)
family	Himalayitidae	Spath 1925
genus	Corongoceras
species	alternans	(Gerth 1925)

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.

†Corongoceras alternans Gerth 1925

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Invalid names: Berriasella pastorei Leanza 1945 [synonym], Corongoceras rigali Leanza 1945 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	3	10.9	9.10	14.2	9.90	2.74
shell diameter	3	33.0	28.9	43.2	28.9	8.26
shell inflation	3	15.4	12.1	20.9	14.5	4.55

Composition:

aragoniteo

Environment:

marinec

Locomotion:

fast-movingo

Life habit:

nektonico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2005-01-28 02:27:03

Modified:

2009-10-08 14:14:55

Source: o = order, c = class

References: Kiessling 2003, Kiessling 2004

Age range: base of the Late/Upper Tithonian to the top of the Berriasian or 145.06000 to 137.05000 Ma

Collections (6 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Tithonian - Late/Upper Tithonian	149.2 - 143.1	Argentina (Neuquen)	Corongoceras alternans (47415)
Late/Upper Tithonian	145.06 - 143.1	Colombia (Meta)	Berriasella pastorei (191971 191974)
Late/Upper Tithonian	145.06 - 143.1	Chile	Corongoceras alternans (90557)
Berriasian	143.1 - 137.05	Chile	Corongoceras alternans (151665 151666)