| Titre | Early Albian (Early Cretaceous) douvilleiceratid ammonites from Haida Gwaii, British Columbia, Canada |
| |
| Auteur | Futakami, M; Haggart, J W |
| Source | Journal of Paleontology vol. 90, no. 1, 2016 p. 43-58, https://doi.org/10.1017/jpa.2015.51 |
| Image |  |
| Année | 2016 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 2005312 |
| Éditeur | Cambridge University Press (CUP) |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.1017/jpa.2015.51 |
| Media | papier; en ligne; numérique |
| Formats | pdf |
| Province | Colombie-Britannique |
| SNRC | 103B/03; 103B/05; 103B/06; 103B/12; 103B/13; 103C/09; 103C/16; 103F/01; 103F/02; 103F/07; 103F/08; 103F/09; 103F/10; 103F/14; 103F/15; 103F/16; 103G/04; 103G/12; 103G/13; 103J/04; 103K/01; 103K/02;
103K/03 |
| Région | Îles de la Reine-Charlotte; Haida Gwaii; Kunghit Island; Kunga Island; Maude Island; Skidegate Inlet; Kennecott Point; Graham Island; Moresby Island |
| Lat/Long OENS | -133.5000 -130.7500 54.2500 52.0000 |
| Sujets | fossiles; distribution de fossiles; assemblages fossiles; zones fossilifères; paléogéographie; paléoenvironnement; plantes fossiles; invertébrés; lithostratigraphie; biostratigraphie; Ammonites;
paléontologie; Crétacé; Mésozoïque |
| Illustrations | plaques; cartes de localisation; coupes stratigraphiques |
| Diffusé | 2016 06 15 |
| Résumé | (disponible en anglais seulement)
The early Albian to mid-Albian cosmopolitan genus Douvilleiceras is represented in the Haida Gwaii archipelago of western British Columbia by five species, D.
mammillatum (Schlotheim), D. offarcinatum (White), D. scabrosum Casey, D. spiniferum (Whiteaves), and D. aff. spiniferum (Whiteaves). Specimens of one of these taxa, D. spiniferum, are particularly abundant on Haida Gwaii and the species is discussed
with respect to its morphological variability and ontogenetic development. The important morphological features for taxonomic criteria of the genus Douvilleiceras are the mode of tuberculation, the pattern of ribbing, and the proportions of the shell
in the middle
growth stage. |
| GEOSCAN ID | 298839 |
|
|