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

Megadesmus globlosus

Bivalvia - Pholadomyida - Megadesmidae

Taxonomy
Megadesmus globlosus was named by Sowerby (1838). Its type specimen is BM (NH) L61043, a shell, and it is a 3D body fossil.

It was recombined as Megadesmus (Megadesmus) globosus by Runnegar (1965).

Sister species lacking formal opinion data
M. omolonicus

Synonymy list
YearName and author
1838Megadesmus globlosus Sowerby p. 15 figs. pl. 1 f. 1-2
1965Megadesmus (Megadesmus) globosus Runnegar p. 235 figs. pl. 12 f. 1-7
1969Megadesmus globlosus Runnegar p. 284 figs. pl. 19 f. 1-4

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassHeteroconchia(Gray 1854)
—CardiomorphiFerussac 1822
—CardioniFerussac 1822
—CardiidiaFerussac 1822
—PoromyataRidewood 1903
orderPholadomyida()
superfamilyEdmondioidea()
familyMegadesmidaeVokes 1967
genusMegadesmus
speciesgloblosus

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.

†Megadesmus globlosus Sowerby 1838
show all | hide all
Diagnosis
ReferenceDiagnosis
B. Runnegar 1969Large, thick and strongly inflated shells witha shallow anterior lateral sulcus culminating in a distinct concavity near the ventral margin of the internal mould; posterior carina usually well defined; posterior slope convex, narrowly triangular in profile as a result of a distinct angulation in the posterior dorsal margin; posterior umbonal slope flat to slightly convex.