The coal horizons of the Middle Jurassic Hojedk Formation of East-Central Iran are fossiliferous, bearing numerous well-preserved fossil plants, comparable to the Shemshak Group/Formation in the Alborz Mountains in Northern Iran. Here we present two recently discovered fossil taxa from the Middle Jurassic Hojedk Formation of the Tabas Block (Central Iran). Based on their distinct morphologies, impression/compression specimens can be assigned to Phlebopteris dunkeri (Schenk) Schenk (Palaeontographica 23: 157–163, 1875) and P. woodwardii Leckenby (Quarterly Journal of the Geological Society 20 (1–2): 74–82, 1864), belonging to Matoniaceae. This is the first record of these two taxa in Iran. Taxa belonging to Equisetaceae, Marattiaceae, Dipteridaceae, Schizaeaceae, Dicksoniaceae, Caytoniales, Bennettitales, Cycadales and Podozamitaceae were observed as accompanying taxa in the studied section. Ecology comparison of the Hojedk Formation plant fossils with the extant relatives of the fossil plant taxa occurring in these deposits indicates accumulation of the host strata under a moist warm (tropical to subtropical) climate during the Middle Jurassic.

中文翻译：

---

伊朗中侏罗世Phlebopteris Dunkeri和P. woodwardii (Matoniaceae)的首次发现

伊朗中东部中侏罗统 Hojedk 组的煤层富含化石，含有许多保存完好的化石植物，可与伊朗北部 Alborz 山脉的 Shemshak 组/组相媲美。在这里，我们展示了来自 Tabas 地块（伊朗中部）中侏罗纪 Hojedk 组的两个最近发现的化石分类群。基于它们独特的形态，印模/压缩标本可以归类为 Phlebopteris dunkeri (Schenk) Schenk (Palaeontographica 23: 157–163, 1875) 和 P. woodwardii Leckenby (Quarterly Journal of the Geological Society 20 (1–2): 74 –82, 1864)，属于马托尼亚科。这是这两个分类群在伊朗的首次记录。属于木贼科、Marattiaceae、Dipteridaceae、Schizaeaceae、Dicksoniaceae、Caytoniales、Bennettitales、在研究部分观察到苏铁科和罗汉松科作为伴随分类群。Hojedk 组植物化石与这些沉积物中存在的植物化石类群的现存亲属的生态比较表明，在中侏罗世期间，宿主地层在潮湿温暖（热带至亚热带）气候下积累。