A Revised Taxonomy for Palaeozoic Neuropterid Foliage

Abstract

Cactus ackermannii LindleyLindley (1830) did not mention any preserved specimen, but he utilized a description by Haworth (1829), which was based on a living specimen, "examined ... at Mr. Tate's choice nursery". Lindley's

Palaeoecology of Macroneuropteris scheuchzeri, and its implications for resolving the paradox of ‘xeromorphic’ plants in Pennsylvanian wetlands

“…All sampled pinnules showed features in conformance with the criteria established by Cleal et al (1990Cleal et al ( , 1996 for the identification of Macroneuropteris in general, and M. scheuchzeri specifically, as follows: brachyparacytic stomata on adaxial surfaces and prominent multicellular trichomes and papillae on abaxial surfaces.…”

“…In order to identify Macroneuropteris scheuchzeri (which is most typically represented by isolated pinnules in the collections), the following diagnostic characters were used (Cleal et al, 1990;Zodrow, 2003;Laveine and Behlis, 2007;Laveine and Legrand, 2008): Pinnules lanceolate ( Fig. 2A-D), occasionally falcate ( Fig.…”

“…The medullosan pteridosperm Macroneuropteris scheuchzeri (Cleal et al, 1990; Neuropteris scheuchzeri in older literature) is abundant and widespread in the Middle and Upper Pennsylvanian successions of tropical Pangaea (Darrah, 1969). East of the Appalachian Orogen (in Europe and Atlantic Canada), where it has been particularly well documented (Laveine and Behlis, 2007), it ranges from the lower Bashkirian (uppermost Langsettian) (Crookall, 1959) to the lower Kasimovian (upper Cantabrian), with a principal range from upper Duckmantian through middle Cantabrian (Bell, 1938;Zodrow, 2003;Laveine and Behlis, 2007).…”

The Okmulgee, Oklahoma fossil flora, a Mazon Creek equivalent: Spatial conservatism in the composition of Middle Pennsylvanian wetland vegetation over 1100km

“…Order Medullosales Genus and species Macroneuropteris scheuchzeri (Hoffman) Cleal et al (1990) Description.-Pinnules of Macroneuropteris scheuchzeri in the Okmulgee collection generally are large, 8-9 cm long, 1-2 cm wide (in the upper third) and 4-5 cm wide at base. Pinnules are straight to slightly falcate, with the margins arcing toward the acroscopic side.…”

“…Order Medullosales Genus and species Laveineopteris rarinervis (Bunbury) Cleal et al (1990) Description.-Pinnules of this species in the collection are generally small, up to 1.8 cm in length, and elongate (2 or more times longer than wide) with a rounded to bluntly pointed, asymmetrical tip, straight but slightly undulatory lateral margins and slightly inflated base. They are narrowly attached to the rachis generally at an angle.…”