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Este hongo del Eoceno superior proviene de la República Dominicana
Resumen
El hongo con branquias más antiguo conocido, Coprinites dominicana, fue descubierto en la República Dominicana. Este fósil sugiere que los hongos evolucionaron mucho antes de lo que se pensaba.
Área de la Ciencia:
- La paleomicología.
- Biología evolutiva Biología evolutiva.
- Paleontología de hongos Paleontología de hongos.
Sus antecedentes:
- El registro fósil de hongos con branquias (Agaricales) es escaso, particularmente de regiones tropicales.
- Comprender la historia evolutiva de los basidiomicetos es crucial para la filogenia de los hongos.
Objetivo del estudio:
- Para describir un hongo fósil recién descubierto de ámbar dominicano.
- Para determinar el significado filogenético y evolutivo de este fósil.
Principales métodos:
- Análisis paleontológico de restos fúngicos fosilizados en ámbar.
- Comparación morfológica con Agaricales existentes y fósiles.
Principales resultados:
- Identificación de Coprinites dominicana gen.nov., spec.nov., el hongo con branquias más antiguo conocido.
- Este fósil es el primer agárico carnoso determinable y el único hongo fósil tropical conocido.
- La apariencia moderna del fósil sugiere un origen antiguo de los hongos, que es anterior a principios y mediados del Terciario.
Conclusiones:
- Coprinites dominicana proporciona evidencia crítica para la evolución temprana de las setas con branquias.
- El descubrimiento desafía los plazos existentes para la diversificación de hongos.
- Este hallazgo tiene implicaciones significativas para la comprensión del desarrollo evolutivo de los basidiomicetos.
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