PBDB Taxon

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

Yoldia serica

Bivalvia - Nuculanida - Yoldiidae

Taxonomy

Nucula serica was named by Conrad (1848) [DISTRIBUTION: Early Oligocene; Gulf Coastal Plain.]. Its type specimen is ANSP 30675, a shell, and it is a 3D body fossil. Its type locality is Vicksburg, which is in a Rupelian marine marl in the Byram Marl Formation of Mississippi.

It was recombined as Leda serica by Conrad (1854); it was recombined as Nuculana serica by Conrad (1865); it was recombined as Yoldia serica by Cooke (1921), Dockery (1982).

Sister species lacking formal opinion data

Y. breweri, Y. clallamensis, Y. emersoni, Y. frater, Y. knoxensis, Y. leurovata, Y. longa, Y. multiconcentrica, Y. oblongoides, Y. palachei, Y. praeposneri, Y. septariana, Y. sobrina, Y. soror, Y. subacuta, Y. franciscoi, Y. siliqua, Y. caudata, Y. kovatschensis, Y. posneri

Synonymy list

Year	Name and author
1848	Nucula serica Conrad p. 294
1854	Leda serica Conrad p. 29
1865	Nuculana serica Conrad p. 13
1921	Yoldia serica Cooke p. 84
1982	Yoldia serica Dockery p. 28

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

Rank	Name	Author
—	Eubivalvia
subclass	Protobranchia	(Pelseneer 1889)
superorder	Nuculaniformii	Carter et al. 2000
order	Nuculanida	(Carter et al. 2000)
superfamily	Nuculanoidea	Adams and Adams 1858
family	Yoldiidae	Habe 1977
genus	Yoldia	Möller 1842
species	serica	()

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.

†Yoldia serica Conrad 1848

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitef

Adult length:

10 to < 100f

Adult width:

1.0 to < 10f

Adult height:

1.0 to < 10f

Thickness:

thinf

Folds:

nonef

Ribbing:

minorf

Spines:

nonef

Internal reinforcement:

nonef

Ontogeny:

accretionf

Environment:

inner shelf, outer shelf, oceanicf

Locomotion:

facultatively mobileg

Life habit:

infaunalg

Diet:

deposit feederg

Vision:

blindc

Created:

2009-09-09 13:24:31

Modified:

2009-09-09 15:24:41

Source: g = genus, f = family, c = class

References: Mikkelsen and Bieler 2008, Sanchez Roig 1926, Aberhan et al. 2004

Age range: Rupelian or 33.90000 to 27.30000 Ma

Collections (36 total)

Time interval	Ma	Country or state	Original ID and collection number
Rupelian	33.9 - 27.3	USA (Mississippi)	Nucula serica (84137) Yoldia serica (5943 5944 5947 5948 6003 6004 6005 6006 66307 66308 66309 66310 66311 66312 66313 66314 66316 66317 66318 66320 66322 66323 66324 66325 66326 66327 66328 66329 66330 66331 66332 66333 66334 66335)
Rupelian	33.9 - 27.3	USA (North Carolina)	Yoldia serica (4880)