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METAPROTASPIS [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1977-09-08

English

Subject field(s)
  • Paleontology
OBS

Successive "degrees" of the meraspid period are numbered to correspond with the number of segments released to form the thorax [of a trilobite] (....) The final "degree" of the meraspid period is (...) considered to be that in which there is one less than the complete number of freely articulating thoracic segments.

French

Domaine(s)
  • Paléontologie
OBS

[Le stade metaprotaspis] se subdivise(...) en "degrés" numérotés d’après le nombre de segments protopygidiaux(degrés 1, 2, 3, etc., suivant que le protopygidium montre 1, 2, 3, etc. segments).

Spanish

Save record 1

Record 2 1977-09-08

English

Subject field(s)
  • Paleontology
OBS

The protaspis passes into the "metaprotaspis substage when additional segments, representing post-cephalic somites, make an appearance (...) [in a trilobite.]

OBS

[A metaprotaspis is a] large protaspis, or the larger protaspis in a size-series, in which the protopygidium is relatively large and well defined.

French

Domaine(s)
  • Paléontologie
OBS

Le stade "protaspis" [dans le développement d’un Trilobite] peut être scindé en deux sous-stades(...) : le stade "metaprotaspis", où de nouveaux segments apparaissent, en arrière des précédents, pour former un protopygidium multisegmenté(...), se subdivise à son tour en degrés numérotés d’après le nombre de segments protopygidiaux(...)

Spanish

Save record 2

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