TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

FOSSETTE LIGAMENTAIRE [7 records]

Record 1 1977-09-20

English

Subject field(s)
  • Paleontology
OBS

[A ligament pit is a] centrally placed depression on [the] dorsal side of [the] transverse ridge on [the] articular facet of a ray plate [in a crinoid]

French

Domaine(s)
  • Paléontologie
OBS

(...) une fossette ligamentaire externe, une fossette ligamentaire(ou musculaire) externe, et une ride articulaire intermédiaire.

Spanish

Save record 1

Record 2 1977-07-08

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the family Mactridae have the following characteristics: [a] Periostracum [is] present, glossy; [the] shell [is] smooth or concentrically sculptured; [the] valves [are] slightly gaping; [there is a] pallial line with sinus; [the] siphons of [the] animal [are] united to their tips (...). "U. Cret. - Rec".

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la famille des Mactridae ont une] coquille équivalve, inéquilatérale, fermée ou bâillante; [une] charnière composée sur la valve droite d’une dent cardinale formée de deux branches divergentes, sur la valve gauche d’une dent lambdiforme qui s’engage dans la fossette formée par les deux branches divergentes de la cardinale droite, latérales non constantes. [Le ligament interne [est] situé dans une fossette profonde ou cuilleron ligamentaire placé contre la branche postérieure de la cardinale; [ces Lamellibranches ont un] sinus palléal plus ou moins profond; [et] deux muscles adducteurs subégaux.

Spanish

Save record 2

Record 3 1977-07-07

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the family Chamidae have the following characteristics:] sculpture [is] normally well developed, concentric or radial or both; [the] shell [is] cemented to [the] substrate by one valve, at least temporarily; beaks [are] prosogyre ligament [is] parivincular; [the] hinge [is] degenerate in appearance, with at least one large cardinal tooth in either valve, two cardinals and weak laterals in some; muscle scars [are] two, large, subequal; [the] palleal line [is] entire. "?U.Cret., Paleoc.-Rec."

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la famille des Chamidae ont une] coquille de forme irrégulière, fixée, ornée de lamelles concentriques, saillantes et épineuses; [des] crochets prosogyres; [un] ligament externe, situé dans une rainure ligamentaire arquée et placée en arrière des crochets; [une] charnière composée d’une dent et deux fossettes sur une valve, de deux dents et une fossette sur l'autre valve; [des] grandes impressions musculaires; [et une] ligne palléale entière. [Ce sont des] formes de mers chaudes.

Spanish

Save record 3

Record 4 1977-07-06

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the] family Pectinidae (...) [have a] shell varying in size, orbicular to oval, [the] valves of some shells [are] equally convex but usually one valve [is] more inflated than [the] other, [the] margins [are] usually, but not invariably closed; [the] umbos [are] central, on either side of which are triangular auricles (ears), [the] anterior one on [the] RV [is] usually with [a] distinct byssal notch or indentation below it; [the] surface [is] smooth or with radial ribs or folds, some species with concentric sculpture of raised lamellae; [the] interior [is] smooth or with fine radial riblets; [the] hinge line [is] straight; [the] external ligament [is] obsolete or nearly so, [the] resilium internal, amphidetic, in [a] triangular pit below [the] umbones; young shells (...) [have] small taxodont teeth which become obsolete later; cardinal crura or laminae [are] commonly present; diverging from either side of [the] ligamental pit; rounded laminae (auricular crura) [are] present on [the] interior of some shells where [the] auricles join [the] valves; adults [are] monomyarian, with posterior adductors only; [they are] free, attached by [a] byssus or cemented by RV; [the] upper (L) valve [is] usually more brightly colored; [the] margin of [the] mantle (...) [has] short filaments and commonly (...) [has] eyes; dioecious (...). "Trias. - Rec.".

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la] famille des Pectinidae(...) [ont une] coquille équilatérale, équivalve ou inéquivalve, libre ou fixée, soit par un byssus qui passe dans une échancrure de l'oreillette antérieure de la valve droite, soit par soudure directe de la région umbonale de la valve droite; [des] crochets médians; [un] bord cardinal droit prolongé en deux oreillettes; [une] fossette ligamentaire triangulaire centrale; [un] ligament rarement visible extérieurement; [une] charnière faite(surtout chez le jeune) de lames symétriques par rapport au ligament-charnière de type isodonte-;[une] ligne palléale entière; une seule impression musculaire subcentrale.

Spanish

Save record 4

Record 5 1977-07-06

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the] family Limidae (...) [have a] shell [that is] usually equivalve (...), ovate, orbicular or subtrigonal, most commonly higher than long, many forms somewhat extended obliquely in [an] anteroventral direction (i.e., opisthocline); [they are] typically biauriculate but with [the] anterior auride reduced or absent in some forms and [the] posterior wing or auricle usually obtuse and commonly ill-differentiated from [the] body of [the] shell; [a] triangular cardinal area with [a] shallow triangular ligament pit [is] present in both valves, [the] umbones [are] well separated; many forms (...) [have an] anterior gape close to or well separated from [the] hinge margin and some (...) [have a] posterior gape also, [the] gapes affecting both valves equally; [the] hinge [is] edentulous or with weak teeth of [the] taxodont type; [they are] mosomyarian, adductor scars rather obscure in most forms; [the] surface [is] smooth or with radial ornament, concentric ornament [is] very rare; [the] ostracum (...) [has an] outer calcitic layer and middle and inner layers of non-nacreous aragonite. (Some Recent forms capable of swimming by [a] flapping of valves, (...) [have the] valve margins disposed vertically; some construct [a] protective nest with byssus threads.) "L.Carb.-Rec."

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la] famille des Limidae(...) [ont une] coquille équivalve ou presque équivalve, inéquilatérale, plus ou moins renflée, fermée ou bâillante; lisse ou ornée de côtes rayonnantes; [les] crochets [sont] recourbés vers l'avant, [il y a] souvent une lunule, fossette ligamentaire sous les crochets droite ou oblique; [le] bord cardinal [est] sans dents ou avec quelques dents parallèles, obliques, situées dans les angles supérieurs correspondant aux oreillettes; [un] byssus [est] présent ou absent; [et ils ont] une impression musculaire au voisinage du bord postérieur. Les Limidés sont libres ou fixés par leur byssus; dans le premier cas, ils peuvent se déplacer(...) par battements de leurs valves.

Spanish

Save record 5

Record 6 1977-07-05

English

Subject field(s)
  • Paleontology
OBS

[Bivalves of the] family Spondylidae [are] small to (mostly) medium-sized, orbicular or oval, gibbous, inequivalve, RV usually more convex; nearly equilateral, pectiniform, closed, with [a] byssal notch lacking; slightly auriculate; attached at [the] umbo or by [a] larger area of [the] surface of [the] RV; [they are] monomyarian, with [a] large, subcircular, posteriorly placed adductor scar; [the] cardinal area [is] amphidetic, much larger on [the] attached valve, where it commonly forms [an] acute triangle; [the] ligament [is] alivincular, [the] resilium [is] deeply sunk in [a] triangular pit; [the] hinge [is] taxodont in [the] early stage, with isodont crura, two in each valve, in [the] adult stage, those in [the] RV adjacent to [the] resilium pit, sculpture of irregular radial costellae, commonly spinose; [the] inner layers of [the] ostracum [are] aragonitic but not nacreous, [the] outer layer [is] calcitic, lamellar. "Jur.-Rec.".

French

Domaine(s)
  • Paléontologie
OBS

[Les Lamellibranches de la] famille des Spondylidae [ont une] coquille inéquivalve, [la] valve droite [est] plus grande que la valve gauche; [ils n’ ont] pas d’échancrure byssale. [La] fixation [est par la valve droite; [l'] ornementation [est] rayonnante; [ils ont une] charnière isodonte comprenant de part et d’autre de la fossette ligamentaire une dent; [une] impression palléale simple; [et] un seul muscle adducteur.

Spanish

Save record 6

Record 7 1977-03-27

English

Subject field(s)
  • Paleontology
OBS

Linear depression in cardinal area or ligament area [of a pelecypod] marking attachment of ligament fibers.

French

Domaine(s)
  • Paléontologie
OBS

[dépression] dans laquelle (...) se loge (...) la partie médiane (...) du ligament interne [de certains lamellibranches]

Spanish

Save record 7

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: