Pristograptus sp.
UNB-2019-0558Fossils » Eukaryote » Animalia » Hemichordata » Graptolithina
Description
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Order: Graptoloidea
Family: Monograptidae
Genus: Pristograptus (Jaekel, 1889)
Mesial and distal portion of the rhabdosome with slight to extensive thecal overlap. Rhabdosome is straight, thecae are simple tubes with a concave thecal aperture and no dorsal hood. Mesial 2TRD is ~1.8 mm and width is ~1.0 mm. Distal 2TRD is ~1.8 mm and width is ~ 1.2 mm.
Specifications
| Object name | Pristograptus sp. |
|---|---|
| ID | UNB-2019-0558 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Hemichordata Class: Graptolithina |
| Composition | Shale |
| Age | Eon: Phanerozoic Era: Paleozoic Period: Silurian Epoch: Wenlock |
| Numeric age | 433.4 Mya |
| Origin | 7-Mile Brook, Kingsclear, New Brunswick, Canada |
| Pieces | 1 |
| Partial | No |
| Measurements |
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