| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Naropa vi
Named by Hori, Whalen & Dumitrica.
Original description: Test conical, dicyrtid. Cephalis small, with polygonal pore frames. Apical and ventral horns long, cylindrical and fused at the base; horns disposed in a V shape. Thorax conical with hexagonal pore frames arranged in staggered horizontal rows and, in some specimens, with a circumferential ridge at middle part. Distal opening of thorax triangular, surrounded by a wide imperforate rim. Feet straight, divergent, triradiate, pointed distally. Two outer blades of each foot interconnected with the corresponding blade of neighbouring feet at the base of the perforate part of the thorax.
Original remarks: This species is rare but morphologically distinctive. It differs from typical Napora in having both apical and ventral horns circular in cross-section. Moreover, the tribladed feet display two outer blades with a wide groove in between.
Etymology: From the two cephalic horns that outline the V letter; noun.
| Year | Name and author |
|---|---|
| 2006 | Naropa vi Gorican et al. p. 256 figs. Pl. UTD01 |
| 2006 | Naropa vi Hori et al. p. 256 figs. Pl. UTD01 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
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| Source: p = phylum | |||||
| Reference: Kiessling 1999 | |||||
Age range: base of the Pliensbachian to the top of the Late/Upper Toarcian or 192.90000 to 174.70000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian - Pliensbachian | Japan | Dumitricaella sp. A (120066 120067) Naropa vi (120065) | |
| Sinemurian - Pliensbachian | Japan | Dumitricaella sp. A (120256 120257 120259 120260 120261) Naropa vi (120002 120258) | |
| Pliensbachian | Mexico (Baja California Sur) | Naropa vi (type locality: 33559) Ultranaporida indet. (33567) | |
| Middle Toarcian - Late/Upper Toarcian | Japan | Dumitricaella sp. A (120072) |