Leptolepides haerteisi ARRATIA, 1997

Taxonomy

Kingdom: Animalia
Phylum: Chordata
Class: Actinopteri Cope 1871
Order: Salmoniformes
Family: Orthogonikleithridae Arratia 1987
Genus: Leptolepides
Species: Leptolepides haerteisi
Author Citation ARRATIA, 1997

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Late
International Age: Tithonian

Stratigraphy

Weissjura Group
Painten Formation

Biostratigraphy

Hybonoticeras hybonotum Zone
Lithacoceras riedense Subzone

Provenance

Collector: T. Bastelberger
Date Collected: 06/01/1987
Acquired by: Field Collection

Dimensions

Length: 4 cm

Location

Zandt Quarry
Denkendorf, county of Eichstätt
Bavaria
Germany

• jurassic
• leptolepides
• solnhofen formation
• tff-oilshale-ch736
• zandt

Comments

Taxonomy from GBIF.org.

Diagnosis (from Arratia 1997): "Small, elongated teleost with a known maximum length of 65 mm. Head length 23–27% of standard length. Ethmoidal region about 24% of head length. With middle pit-line groove running onto pterotic. Two supraorbital bones, the first one expanded anteroventrally. Preopercular limbs form an angle of 90°. Quadrate-mandibular articulation placed below center of orbit. Dorsal fin origin anterior to pelvic fin origin. Origin of dorsal fin at 54–63% of standard length. Origin of anal fin at 84–88 % of standard length. With 45 or 46 vertebrae. Pectoral fin rays 15–19, pelvic fin rays 10–11, dorsal fin rays 15–16, anal fin rays 9. Complex epipleural bones bearing two or three thin projections about midlength of vertebral column."

Leptolepides haerteisi A GG21.193 from Zandt, line drawing of the head (from Konwert 2016, p. 58):

 

Identified by oilshale.

References:

Arratia G. (1997) Basal teleosts and teleostean phylogeny. Palaeo Ichthyologica, Volume 7, 168 pp.
Konwert, Martin (2016): First record of Leptolepides haerteisi (Teleostei, Orthogonikleithridae) from the Upper Jurassic Plattenkalks of chamhaupten (Bavaria, Germany) Archaeopteryx 33: 54-61, Eichstätt 2016