HdV-7A

Taxonomical Group

Fungi

Type description

Ascospores: 6-7 x 4-5 μm, lemon-shaped, umbonate at both ends, bilaterally flattened. Perithecia (7A.b-d) 290--310 X 195--215 um. Perithecial hairs (essential for identification) not preserved in the fossil material: van Geel 1978

These ascospores are one-celled, lemon-shaped, somewhat flattened in one plane, light brown and 6–12 X 4–9 μm in size. The identification of extant Chaetomium species is mainly based on the characteristics of the intact perithecia with their apical tuft of bristles. These features are normally not observed in the fossil state.van Geel et al. 2003a:

Records

First publication

van Geel B (1978) A palaeoecological study of Holocene peat bog sections in Germany and the Netherlands, based on the analysis of pollen, spores and macro- and microscopic remains of fungi, algae cormophytes and anymals. Rev. Palaeobot. Palynol. 25:1-120.