Open AccessDISSOCLADELLA? CHAHTORSHIANA RASHIDI & SCHLAGINTWEIT N. SP., A NEW DASYCLADALE (GREEN ALGAE) FROM THE PALEOCENE OF IRAN
Author(s) -
Félix Schlagintweit,
Koorosh Rashidi,
Hamed Yarahmadzahi,
Sharam Habibimood,
Mahnaz Amirshahkarmi,
Hossain Ahmadi,
Hossain Khokan
Publication year - 2019
Publication title -
acta palaeontologica romaniae
Language(s) - English
Resource type - Journals
eISSN - 2248-3802
pISSN - 1842-371X
DOI - 10.35463/j.apr.2019.02.01
Subject(s) - halimeda , foraminifera , thallus , benthic zone , geology , paleontology , type locality , algae , oceanography , botany , sediment , biology , taxonomy (biology)
A new Dasycladale is described as Dissocladella? chahtorshiana Rashidi & Schlagintweit n. sp. from Selandian carbonates of Mount Chah Torsh, Central Iran (type locality). Other occurrence is from the Sistan Suture Zone of Eastern Iran (Selandian?, Thanetian?). The medium-sized taxon displays cylindrical to slightly claviform thalli with a relatively large main axis bearing alternating primaries of variable shape. The latter show either slowly widening towards the distal end or are club-shaped displaying very short secondaries. The morphological variability of the primaries, both typical and atypical for Dissocladella, account for some doubts on the generic assignment of the new species. Dissocladella? chahtorshiana occurs in bioclastic packstones with Cymopolia mayaense Johnson & Kaska, Acroporella cf. anceps Segonzac, Halimeda sp., and benthic foraminifera (e.g., soritiids) at its type locality.