Extropharciceras Bockwinkel, Becker & Ebbighausen, 2009

Korn, Dieter & Bockwinkel, Jürgen, 2021, The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea), European Journal of Taxonomy 771, pp. 1-79 : 38-39

publication ID	https://doi.org/10.5852/ejt.2021.771.1503
publication LSID	lsid:zoobank.org:pub:9FAB6919-E4AC-44A6-89AB-2E236F55FDB5
DOI	https://doi.org/10.5281/zenodo.5536123
persistent identifier	https://treatment.plazi.org/id/03BAFC02-FFD7-FFC1-21A4-FB049EBADE7F
treatment provided by	Felipe (2021-09-29 12:31:28, last updated 2024-11-24 23:27:11)
scientific name	Extropharciceras Bockwinkel, Becker & Ebbighausen, 2009
status

Treatment

Genus Extropharciceras Bockwinkel, Becker & Ebbighausen, 2009 View in CoL

Type species

Extropharciceras conex Bockwinkel, Becker & Ebbighausen, 2009 View in CoL (original designation).

Diagnosis

Pharciceratinae with discoidal to pachyconic, subevolute to evolute juvenile stage, whorl profile depressed. Adult stage subinvolute to subevolute with weakly depressed to weakly compressed whorl profile; venter rounded or tabulate. WER low or moderate. Juvenile stage sometimes finely ribbed, adult stage with weak to strong, single or paired ventrolateral grooves. Suture line with very wide external lobe, deep or shortened median E 1 lobe, moderately high median saddle, deep, tongue-shaped E 2 lobe, large, midflank lateral lobe, two or three outer and three inner umbilical lobes. Suture line formula (E 2 E 1 E 2) L U 2 U 4: U 5 U 3 U 1 I to (E 2 E 1 E 2) L U 2 U 4 U 6: U 5 U 3 U 1 I.

Included species

Extropharciceras conex Bockwinkel, Becker & Ebbighausen, 2009 , Anti-Atlas; Pharciceras arenicum Petter, 1959 , Ougarta, Algeria; Ammonites Becheri von Buch, 1832 , Rhenish Mountains; Pharciceras arenicum var. carinata Petter, 1959 , Ougarta, Algeria; Extropharciceras librum Bockwinkel, Becker & Ebbighausen, 2009 , Anti-Atlas; Extropharciceras gentile Bockwinkel, Becker & Ebbighausen, 2015 , Anti-Atlas; Extropharciceras serum Bockwinkel, Becker & Ebbighausen, 2015 , Anti-Atlas; Extropharciceras worki Bockwinkel, Becker & Aboussalam, 2017 , Anti-Atlas; Extropharciceras metallicum sp. nov., Rhenish Mountains.

References

Bockwinkel J., Becker R. T. & Ebbighausen V. 2009. Upper Givetian ammonoids from Dar Kaoua (Tafilalt, SE Anti-Atlas, Morocco). Berliner palaobiologische Abhandlungen 10: 61 - 128.

Bockwinkel J., Becker R. T. & Ebbighausen V. 2015. Late Givetian ammonoids from Ait Ou Amar (northern Maider, Anti-Atlas, southeastern Morocco). Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen 278: 123 - 158. https: // doi. org / 10.1127 / njgpa / 2015 / 0516

Bockwinkel J., Becker R. T. & Aboussalam Z. S. 2017. Ammonoids from the late Givetian Taouzites Bed of Ouidane Chebbi (eastern Tafilalt, SE Morocco). Neues Jahrbuch fur Geologie und Palaontologie, Abhandlungen 284 307 - 354. https: // doi. org / 10.1127 / njgpa / 2017 / 0664

Petter G. 1959. Goniatites devoniennes du Sahara. Publications du Service de la Carte geologique de l'Algerie (nouvelle serie), Paleontologie 2: 1 - 313.

von Buch L. 1832. Uber Goniatiten. Physikalische Abhandlungen der Koniglichen Akademie der Wissenschaften Berlin 1832: 159 - 187.