THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE)
The new genus Praepinacoceras with Pinacoceras damesi Mojsisovics, 1882 as type species is here described. This genus is represented by Upper Anisian to Ladinian species, having an involute, compressed shell, smooth or with thin ribs, or weak short folds or also a median spiral ridge. The suture is...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Milano University Press
2017-08-01
|
| Series: | Rivista Italiana di Paleontologia e Stratigrafia |
| Subjects: | |
| Online Access: | https://riviste.unimi.it/index.php/RIPS/article/view/8951 |
| _version_ | 1797765768735096832 |
|---|---|
| author | NERINA FANTINI SESTINI |
| author_facet | NERINA FANTINI SESTINI |
| author_sort | NERINA FANTINI SESTINI |
| collection | DOAJ |
| description | The new genus Praepinacoceras with Pinacoceras damesi Mojsisovics, 1882 as type species is here described. This genus is represented by Upper Anisian to Ladinian species, having an involute, compressed shell, smooth or with thin ribs, or weak short folds or also a median spiral ridge. The suture is ammonitic with 2-4, only occasionally 6 adventitious lobes of L, U1 and U2 vey large, and numerous auxiliary elements. The suture differs from that of Pinacoceras and Eupinacoceras by its comparatively less frilled elements. The new genus, because of its stratigraphic range and its morphology is herein regarded as the ancestral form of the Fam. Pinacocnatidae. |
| first_indexed | 2024-03-12T20:15:47Z |
| format | Article |
| id | doaj.art-a886a5cbd074445d8f6806e8e7c93a63 |
| institution | Directory Open Access Journal |
| issn | 0035-6883 2039-4942 |
| language | English |
| last_indexed | 2024-03-12T20:15:47Z |
| publishDate | 2017-08-01 |
| publisher | Milano University Press |
| record_format | Article |
| series | Rivista Italiana di Paleontologia e Stratigrafia |
| spelling | doaj.art-a886a5cbd074445d8f6806e8e7c93a632023-08-02T01:23:18ZengMilano University PressRivista Italiana di Paleontologia e Stratigrafia0035-68832039-49422017-08-01973-410.13130/2039-4942/89517702THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE)NERINA FANTINI SESTINIThe new genus Praepinacoceras with Pinacoceras damesi Mojsisovics, 1882 as type species is here described. This genus is represented by Upper Anisian to Ladinian species, having an involute, compressed shell, smooth or with thin ribs, or weak short folds or also a median spiral ridge. The suture is ammonitic with 2-4, only occasionally 6 adventitious lobes of L, U1 and U2 vey large, and numerous auxiliary elements. The suture differs from that of Pinacoceras and Eupinacoceras by its comparatively less frilled elements. The new genus, because of its stratigraphic range and its morphology is herein regarded as the ancestral form of the Fam. Pinacocnatidae.https://riviste.unimi.it/index.php/RIPS/article/view/8951AmmonoideaSystematicMiddle Triassic. |
| spellingShingle | NERINA FANTINI SESTINI THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE) Rivista Italiana di Paleontologia e Stratigrafia Ammonoidea Systematic Middle Triassic. |
| title | THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE) |
| title_full | THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE) |
| title_fullStr | THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE) |
| title_full_unstemmed | THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE) |
| title_short | THE MIDDLE TRIASSIC NEW GENUS <em>PRAEPINACOCERAS</em> (FAMILY PINACOCERATIDAE) |
| title_sort | middle triassic new genus em praepinacoceras em family pinacoceratidae |
| topic | Ammonoidea Systematic Middle Triassic. |
| url | https://riviste.unimi.it/index.php/RIPS/article/view/8951 |
| work_keys_str_mv | AT nerinafantinisestini themiddletriassicnewgenusempraepinacocerasemfamilypinacoceratidae AT nerinafantinisestini middletriassicnewgenusempraepinacocerasemfamilypinacoceratidae |