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Parapallasiceras
Taxonomy
Parapallasiceras is a genus. It is not extant.
It was assigned to Lithacoceratinae by Zeiss et al. (1994); to Ammonoidea by Sepkoski (2002); and to Virgatosphinctinae by Sato and Yamada (2005).
It was assigned to Lithacoceratinae by Zeiss et al. (1994); to Ammonoidea by Sepkoski (2002); and to Virgatosphinctinae by Sato and Yamada (2005).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Parapallasiceras Zeiss et al. p. 372 |
| 2002 | Parapallasiceras Sepkoski |
| 2005 | Parapallasiceras Sato and Yamada p. 271 |
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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.
G. †Parapallasiceras
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†Parapallasiceras pseudocontiguum Donze and Enay 1961
†Parapallasiceras toucasi Cecca 1986
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 18.5 | 16.0 | 21.0 | 18.8 | 2.75 | |
| shell diameter | 4 | 62.1 | 56.0 | 67.0 | 63.0 | 4.86 | |
| shell inflation | 4 | 31.0 | 27.5 | 34.0 | 31.5 | 2.72 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Early/Lower Tithonian or 150.80000 to 145.00000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Oxfordian - Berriasian | Spain | P. pseudocontiquus, P. praecox, P. paracolubrinus, P. recticosta (73297) | |
| Early/Lower Tithonian | Italy | P. pseudocolubrinum (184801 184803) P. pseudocolubrinum, P. toucasi (184800) | |
| Early/Lower Tithonian | Japan (Fukui) | P. pseudocontiguum (197991) | |
| Early/Lower Tithonian | Germany | P. multipartitum, P. subviperinum, P. palatinum, P. paraconcorsi, P. lateumbilicatum, P. pseudocontiguum (13445) P. palatinum, P. paraconcorsi (13443) P. palatinum, P. pseudocontiguum (13444) P. palatinum, P. pseuducontiguum (13441) P. paraconcorsi, P. pseudocontiguum (13446) | |
| Late/Upper Tithonian | Poland | P. contiguus (235575) | |
| Middle Tithonian | Argentina (Neuquen) | P. sp. (135629 135630 135632 135633) |