PBDB Taxon

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

Holcoptychites agrioensis

Cephalopoda - Ammonitida - Holcodiscidae

Taxonomy

Desmoceras agrioensis was named by Weaver (1931).

It was recombined as Holcoptychites agrioensis by Aguirre-Urreta and Rawson (2003).

Sister species lacking formal opinion data

H. neuquensis

Synonyms

Holcoptychites compressus was named by Leanza and Wiedmann (1980).

It was synonymized subjectively with Holcoptychites agrioensis by Aguirre-Urreta and Rawson (2003).

Synonymy list

Year	Name and author
1931	Desmoceras agrioensis Weaver p. 437 figs. Pl 51, fig 334
1980	Holcoptychites compressus Leanza and Wiedmann p. 958 figs. Pl 3, fig 1; text-fig 3
2003	Holcoptychites agrioensis Aguirre-Urreta and Rawson p. 604 figs. 3a, 4b,c, 5a,c, 6b,e, 7e, 8

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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
suborder	Ammonitina	Hyatt 1889
superfamily	Perisphinctaceae	Steinman 1890
family	Holcodiscidae	Spath 1924
subfamily	Spitidiscinae	Vermeulen and Thieuloy 1999
genus	Holcoptychites
species	agrioensis	(Weaver 1931)

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.

†Holcoptychites agrioensis Weaver 1931

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Invalid names: Holcoptychites compressus Leanza and Wiedmann 1980 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	6	49.5	23.1	89.2	53.6	24.7
shell diameter	6	106.1	50.5	199.0	112.2	55.2
shell inflation	6	26.5	14.6	55.0	27.6	14.9

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: Early/Lower Hauterivian or 136.40000 to 130.00000 Ma

Collections (20 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Hauterivian	136.4 - 130.0	Argentina	Holcoptychites agrioensis (61568 61585 61587 61588 61589 61590 61591 61600 61601 61603 61604 61605 61647 61649 61652 61653 61655 61657 179321)
Early/Lower Hauterivian	136.4 - 130.0	Argentina (Neuquen)	Holcoptychites agrioensis (50190)