Tetragraptus sp., Phyllograptus sp. and Didymograptus sp.
UNB-2019-0577Fossils » Eukaryote » Animalia » Hemichordata » Graptolithina
Description
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Order: Graptoloidea
Family: Phyllograptidae
Genus: Tetragraptus (Salter, 1863)
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Family: Phyllograptidae
Genus: Phyllograptus (Hall, 1858)
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Family: Dichograptidae
Genus: Didymograptus (McCoy, 1851)
Six shales with a few graptolites preserved on the surface. Two large Phyllograptus rhabdosome between two shales with one having a rhabdosome length of 15.0 mm but the distal end is broken off and the second rhabdosome has a length of 25.0 mm, with the proximal and distal end missing. The rhabdosome length of the first Phyllograptus 5.0 mm and the 2TRD is 2.0 mm. The second Phyllograptus width is 4.0 mm and 2TRD 2.5 mm. Both are scandent forms.
One shale has one stipe of Didymograptus that has a width of 1.0 mm, 2TRD of 2.0 mm and the total visible length of 20.0 mm. The shale with the proximal portion of the Phyllograptus has a small stipe of Tetragraptus with a width of 0.9 mm and 2TRD is 2.5 mm.
Specifications
| Object name | Tetragraptus sp., Phyllograptus sp. and Didymograptus sp. |
|---|---|
| ID | UNB-2019-0577 |
| Legal status | Permanent collection |
| Category | Fossil |
| Classification | Domain: Eukaryote Kingdom: Animalia Phylum: Hemichordata Class: Graptolithina |
| Composition | Shale |
| Age | Eon: Phanerozoic Era: Paleozoic Period: Ordovician Epoch: Lower Ordovician |
| Numeric age | 485.4 Mya |
| Origin | Near Slemmestad, Norway |
| Pieces | 6 |
| Partial | No |
| Measurements |
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