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IMPUNCTATE SHELL [6 records]

Record 1 1977-06-29

English

Subject field(s)
  • Paleontology
OBS

[Brachiopods of the] superfamily spiriferacea [have a] shell form [that is] variable but generally rather transverse with either angular or narrowly rounded cardinal extremities and [a] hinge line equal to or slightly less than [the] maximum width; lateral slopes [are] invariably costate or plicate; [a] fold and sulcus [is] generally present, tending to be bald in earlier forms, costate or plicate in later ones; [the] pedicle valve interior [is] with or without dental plates, commonly without [a] median septum; [the] brachial valve interior [has a] striate cardinal process, [and is] with or without crural plates; [the] shell substance [is] generally impunctate. "L. Sil.-U. Perm. ".

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes de la] super-famille des spiriferacea [ont des] crura en continuation directe avec les lamelles primaires qui sont entre les spires brachiales.

Spanish

Save record 1

Record 2 1977-06-29

English

Subject field(s)
  • Paleontology
OBS

[Brachiopods of the] family spiriferidae [are] biconvex; slightly to markedly transverse; [the] cardinal extremities [are] rounded in some, making [the] hinge line somewhat less than [the] maximum width, more typically angular, with [a] hinge line equal to [the] maximum width, [the] hinge [is] commonly denticulate; lateral plications [are] few to numerous, rarely simple, more commonly bifurcating, in some becoming fasciculate; [the] fold and sulcus [are] commonly distinct, plicate; [the] pedicle valve interior generally [has] dental plates. [lack a] median septum; [the] delthyrial plate [is] weakly developed or lacking; [the] brachial valve interior rarely [has] crural plates; [the] shell substance [is] impunctate. "L. Carb.-Perm. ".

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes de la] famille des spiriferidae [ont des] spiralia à tours nombreux, dirigées latéralement; [un] jugum simple, complet ou non.

Spanish

Save record 2

Record 3 1977-06-23

English

Subject field(s)
  • Paleontology
OBS

[Articulate brachiopods of the] family Billingsellidae(...) [have the following characteristics :] Interareas and hinge lines [are] well developed, pseudodeltidium [is] strong, perforate apically, [a] chilidium [is] present; [the] teeth [are] large, [the] dental plates [are] variably developed, [the] ventral muscle field with widely divergent diductor scars and [a] large subtriangular adductor track commonly extending well anterior of [the] umbonal cavity; [the] cardinal process [is] simple ridgelike, [the] socket ridges [are] as widely divergent short, unsupported blades, [the] sockets [are] cuplike; [the] ventral mantle canal system [is] saccate, [the] dorsal probably digitate. Shell substance [is] impunctate. L. Cam.-L. Ord.

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes articulés de la] famille des Billingsellidae [n'ont] pas de vrai spondylium (un pseudospondylium peut exister); pas de cruralia; [ils ont un] processus cardinal simple, plus ou moins développé.

Spanish

Save record 3

Record 4 1977-06-21

English

Subject field(s)
  • Paleontology
OBS

[Articulate brachiopods of the] Superfamily Orthacea(...) [have an] open delthyrium, rarely constricted by deltidial plates or [a] deltidium, [a] chilidium [is] rare; teeth [are] simple, commonly with deep crural fossettes and supported by dental plates; [the] ventral muscle field [is] rarely supported by [a] spondylium [the] cardinal process [is] simple or differentiated, rarely absent; sockets [are] simple or defined by fulcral plates, brachiophores [are] commonly rodlike, less commonly with supporting bases convergent or divergent on [the] floor of [the] brachial valve; [the] ventral mantle canal system [is] commonly saccate, with [the] proximal parts of "vascula media" convergent or divergent on to [the] median plane, [the] dorsal mantle canal system [is] commonly digitate, rarely apocopate. [The] Shell substance [is] impunctate. L. Cam.-U. Dev.

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes articulés de la] Super-famille des Orthacea (...) [ont un] Pédoncule toujours fonctionnel; [le] pseudodeltidium et [le] chilidium chez les premières formes disparaissant ensuite; [le] processus ensuite cardinal en général [est] bien développé; [cette] super-famille [était] très abondante durant tout le Paléozoïque.

Spanish

Save record 4

Record 5 1977-06-21

English

Subject field(s)
  • Paleontology
OBS

[Brachiopods of the] superfamily Clitambonacea(...) [are] Plano-convex to biconvex multicostellate, with [the] ventral muscle field impressed on [the] floor and [the] dental plates of [the] pedicle valve on [a] rudimentary spondylium triplex or on [a] spondylium duplex; [the] shell substance [is] impunctate. Ord.

French

Domaine(s)
  • Paléontologie
OBS

[Les Brachiopodes de la] super-famille des Clitambonacea (...) [ont le] deltidium perforé au sommet; [le] chilidium bien développé; [un] pseudospondylium ou spondylium simplex, à la valve ventrale. Répandus dans l'Ordovicien, rares au Silurien.

Spanish

Save record 5

Record 6 1977-06-07

English

Subject field(s)
  • Paleontology
OBS

[The term] impunctate shell [refers to a Brachiopod] shell lacking endopunctae or pseudopunctae.

French

Domaine(s)
  • Paléontologie
OBS

(...) un test [de Brachiopode] imponctué [a] la couche fibreuse (...) compacte (...)

Spanish

Save record 6

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