Lituigraptus convolutus
UNB-2019-0636Fossils » Eukaryote » Animalia » Hemichordata » Graptolithina
Description
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Order: Graptoloidea
Family: Monograptidae
Genus: Lituigraptus (Ni, 1978)
Species: Lituigraptus convolutus (Hisinger, 1837)
Well-preserved specimen with 5 whorls visible. Sicula is 0.8 mm, dorsally curved and reaches below the distal part of theca 1. Rhabdosome is dorsally curved with a width of 0.75 mm proximally to 2.3 mm distally. Prothecal ventral wall is parallel in the proximal and mesial thecae but concaved more distally. Thecae are hooked with introverted apertures in the proximal thecae.
Specifications
| Object name | Lituigraptus convolutus |
|---|---|
| ID | UNB-2019-0636 |
| 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: Llandovery Age: Aeronian |
| Numeric age | 440.8 Mya |
| Origin | Blackley Haven, Melville, Northwest Territories,Canada |
| Pieces | 1 |
| Partial | No |
| Measurements |
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