PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Cucullaea lirata

Bivalvia - Arcida - Cucullaeidae

Taxonomy

Cucullaea lirata was named by Packard (1922). Its type specimen is UCMP 12314 and is a 3D body fossil. Its type locality is UCMP loc. 2149, Santa Ana Mountains, which is in a Campanian marine horizon in the Williams Formation of California.

It was recombined as Cucullaea (Idonearca) lirata by Anderson (1958).

Sister species lacking formal opinion data

C. acuticarinata, C. antarctica, C. australis, C. ceres, C. clathrata, C. contracta, C. egertonianus, C. favrei, C. gabrielis, C. jaworskii, C. kipandeensis, C. mailleana, C. matheroniana, C. minchiahamplonensis, C. ornata, C. rothi, C. royei, C. sheikhfadli, C. texta, C. vulgaris, C. wadei, C. waihaoensis, C. woodsi, C. coxi, C. fuegunensis, C. aalensis, C. powersi, C. rothi, C. waihaoensis

Synonymy list

Year	Name and author
1922	Cucullaea lirata Packard p. 417 figs. Plate 24, figure 2; plate 25, figure 3
1958	Cucullaea (Idonearca) lirata Anderson p. 91

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

Rank	Name	Author
subclass	Autobranchia	(Groblen 1894)
infraclass	Pteriomorphia	(Beurlen 1944)
—	Ostreomorphi	Ferussac 1822
—	Arcioni	Gray 1854
order	Arcida	(Stoliczka 1871)
superfamily	Arcoidea	(Lamarck 1809)
family	Cucullaeidae	Stewart 1930
genus	Cucullaea	Lamarck 1801
species	lirata

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.

†Cucullaea lirata Packard 1922

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Diagnosis

Reference	Diagnosis
E. L. Packard 1922	Shell large, elongate, inequilateral. Anterior extremity short, evenly rounded; posterior extremity pointed (?), accentuated by a prominent umbonal ridge; ventral margin straight . Umbones small, widely separated by a dorsal area. Posterior dorsal area flat . Shell sculptured by numerous radial striae and prominent cocentric growth lines. Hinge line short, with dentition typical of the genus. Height, 53 mm.; length, 75 mm.; convexity, 28 mm.