PBDB Taxon

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

Opis (Hesperopis) popenoei

Bivalvia - Carditida - Astartidae

Taxonomy

Opis (Hesperopis) popenoei was named by Squires and Saul (2009). Its type specimen is LACMIP 9912 and is a 3D body fossil. Its type locality is CIT loc. 302, Santa Ana Mountains, which is in a Turonian marine horizon in the Ladd Formation of California.

Sister species lacking formal opinion data

O. amakusensis, O. corralina, O. corrallina, O. curvirostra, O. curvirostris, O. elevata, O. hokkaidoensis, O. hugardi, O. hugardiana, O. ligeriensis, O. lorioli, O. orfellensis, O. pacifica, O. parvicarinata, O. sofegginensis, O. tanourensis, O. ventricosa, O. virdunensis, O. bicarinata, O. gibbosa, O. leckenbyi, O. amakusensis, O. haginoensis, O. hokkaidoensis, O. hugardiana, O. nakanoi, O. ventricosa, O. similis, O. torinosuensis, O. trigonalis, O. roederi, O. similis

Synonymy list

Year	Name and author
2009	Opis (Hesperopis) popenoei Squires and Saul p. 1321 figs. 3C-E, 5

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)

Rank	Name	Author
infraclass	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822
—	Carditioni	Dall 1889
order	Carditida	(Dall 1889)
superfamily	Crassatelloidea	(Férussac 1822)
family	Astartidae	d'Orbigny 1844
subfamily	Opinae	Chavan 1952
genus	Opis	Defrance 1824
subgenus	Hesperopis
species	popenoei

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.

†Opis (Hesperopis) popenoei Squires and Saul 2009

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitesuperf

Environment:

marinesuperf

Locomotion:

facultatively mobilesuperf

Life habit:

infaunalsuperf

Diet:

suspension feedersuperf

Vision:

blindsuperf

Created:

2009-09-09 13:45:55

Modified:

2024-02-05 22:32:59

Source: superf = superfamily

Reference: Sanchez Roig 1926

Age range: base of the Albian to the top of the Middle Turonian or 113.20000 to 89.80000 Ma

Collections (5 total)

Time interval	Ma	Country or state	Original ID and collection number
Albian	113.2 - 100.5	USA (Oregon)	Opis popenoei (229463)
Late/Upper Turonian	93.9 - 89.8	USA (California)	Opis popenoei (220941) Opis triangulata (type locality: 220940)
Middle Turonian	93.9 - 89.8	USA (California)	Opis popenoei (222116)
Turonian	93.9 - 89.8	USA (California)	Opis popenoei (219050)